Articles | Volume 24, issue 2
https://doi.org/10.5194/fr-24-223-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/fr-24-223-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Jul 2021
Research article |
| 08 Jul 2021
| 08 Jul 2021
The first extinct species of Acritus LeConte, 1853 (Histeridae: Abraeinae) from Eocene Baltic amber: a microscopic beetle inclusion studied with X-ray micro-computed tomography
Vitalii I. Alekseev
Shirshov Institute of Oceanology, Russian Academy of Sciences,
Nahimovskiy prospekt 36, Moscow 117997, Russia
Institute of Life Sciences, Immanuel Kant Baltic Federal University,
Nevskogo street 14, Kaliningrad 236016, Russia
Kaliningrad Regional Amber Museum, Marshal Vasilevskii square 1,
Kaliningrad 236016, Russia
Institute of Life Sciences and Technologies, Daugavpils University,
Vienības 13, Daugavpils 5401, Latvia
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Vitalii I. Alekseev and Andris Bukejs
Foss. Rec., 24, 93–99, https://doi.org/10.5194/fr-24-93-2021, https://doi.org/10.5194/fr-24-93-2021, 2021
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Clown beetles (Histeridae) are insufficiently studied in fossil resins. The aim of the present research is to describe a new species of Bacaniini from Eocene Baltic amber. The specimen is studied using X-ray micro-computed tomography, imaged and compared with fossil and extant related beetles. A mixed sporophagous–predaceous diet in rotten wood of fallen and standing trees was assumed to be the ecological niche for the fossil species.
Vitalii I. Alekseev, Jerit Mitchell, Ryan C. McKellar, Mauricio Barbi, Hans C. E. Larsson, and Andris Bukejs
Foss. Rec., 24, 19–32, https://doi.org/10.5194/fr-24-19-2021, https://doi.org/10.5194/fr-24-19-2021, 2021
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Two new fossil species of turtle beetles have been identified from inclusions in Baltic amber (approx. 41–38 million years old). These beetles are the first described representatives of the family from this amber type and the first known turtle beetles from Europe. The paper also contains a discussion about possible association of the fossil turtle beetles with orchids in the Eocene
amberiferous forestand remarks concerning fossil beetles of the group.
Andris Bukejs, Jan Bezděk, Vitalii I. Alekseev, Kristaps Kairišs, and Ryan C. McKellar
Foss. Rec., 23, 105–115, https://doi.org/10.5194/fr-23-105-2020, https://doi.org/10.5194/fr-23-105-2020, 2020
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A male of the extinct leaf-beetle species Calomicrus eocenicus embedded in Baltic amber is found and compared with an earlier known female. The beetle genitalia are illustrated in detail using X-ray microtomography. The male is smaller than female and has a modified last abdominal segment. The extinct species (about 40 million years old) possesses typical sexual characters which are similar to the characters of extant beetles within the group.
Andris Bukejs, Jiří Háva, and Vitalii I. Alekseev
Foss. Rec., 23, 95–104, https://doi.org/10.5194/fr-23-95-2020, https://doi.org/10.5194/fr-23-95-2020, 2020
Short summary
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New fossil species of skin beetles (Dermestidae) from two bioinclusions in Eocene ambers (Baltic and Rovno) are described and compared with extinct and extant congeners. The affinity of the Rovno and Baltic amber varieties is briefly reviewed. The checklist of the described beetles (57 species) from Rovno amber is compiled and presented for the first time.
Andris Bukejs, Vitalii I. Alekseev, and Andrei A. Legalov
Foss. Rec., 23, 75–81, https://doi.org/10.5194/fr-23-75-2020, https://doi.org/10.5194/fr-23-75-2020, 2020
Short summary
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We describe a new species and genus of weevils, Baltacalles triumurbium, from the Eocene amber of the Sambia Peninsula (Kaliningrad Region, Russia). The new fossil represents the first Eocene representative of the group. In addition to the taxonomic work, the locally distinct deposits of Baltic amber in the Kaliningrad Region are listed, discussed, photographed and mapped. The importance of the possible exact labeling of the amber material is underlined.
Vitalii I. Alekseev, Andris Bukejs, and Ryan C. McKellar
Foss. Rec., 22, 111–118, https://doi.org/10.5194/fr-22-111-2019, https://doi.org/10.5194/fr-22-111-2019, 2019
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In this paper we describe a new fossil species of the silvanid flat bark beetle from Baltic amber. The new beetle species from European Eocene belongs to the genus living only in the New World now. Possible, the studied specimen is an adult beetle entrapped in resin shortly after moulting.
Vitalii I. Alekseev, Andris Bukejs, and Xavier Bellés
Foss. Rec., 22, 65–72, https://doi.org/10.5194/fr-22-65-2019, https://doi.org/10.5194/fr-22-65-2019, 2019
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The current paper describes a new fossil genus of spider beetles from Baltic amber (Eocene, 34–55 million years old). This fossil resin can be found throughout the Baltic Sea coastal area in northern Europe (Kaliningrad region, Russia; Poland; Denmark; Sweden; Germany; and Lithuania). The examined fossil material is housed in the private collection of Christel and Hans Werner Hoffeins (Hamburg, Germany).
Robin Kundrata, Matthew L. Gimmel, Gabriela Packova, Andris Bukejs, and Stephan M. Blank
Foss. Rec., 24, 141–149, https://doi.org/10.5194/fr-24-141-2021, https://doi.org/10.5194/fr-24-141-2021, 2021
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Dascillidae are a species-poor beetle group with a scarce fossil record. Here, we used light microscopy and X-ray microtomography to describe Baltodascillus serraticornis gen. et sp. nov. based on a well-preserved specimen from Eocene Baltic amber. We tentatively place this species in the subfamily Karumiinae. This is the first representative of the Dascillidae formally described from Baltic amber and the first described fossil member of the subfamily Karumiinae.
Andris Bukejs and Andrei A. Legalov
Foss. Rec., 24, 117–127, https://doi.org/10.5194/fr-24-117-2021, https://doi.org/10.5194/fr-24-117-2021, 2021
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Baltocar sontagae sp. nov. and Pseudomesauletes lobanovi sp. nov. from the family Rhynchitidae are described from Eocene Baltic amber. It is the first record of Pseudomesauletes from Baltic amber. Keys to species of the genus Baltocar and to the Eocene species of the genus Pseudomesauletes are given. Assumed trophic relationships of the genus Baltocar with Cupressaceae and Pseudomesauletes lobanovi sp. nov. with Rosaceae are discussed.
Vitalii I. Alekseev and Andris Bukejs
Foss. Rec., 24, 93–99, https://doi.org/10.5194/fr-24-93-2021, https://doi.org/10.5194/fr-24-93-2021, 2021
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Clown beetles (Histeridae) are insufficiently studied in fossil resins. The aim of the present research is to describe a new species of Bacaniini from Eocene Baltic amber. The specimen is studied using X-ray micro-computed tomography, imaged and compared with fossil and extant related beetles. A mixed sporophagous–predaceous diet in rotten wood of fallen and standing trees was assumed to be the ecological niche for the fossil species.
Vitalii I. Alekseev, Jerit Mitchell, Ryan C. McKellar, Mauricio Barbi, Hans C. E. Larsson, and Andris Bukejs
Foss. Rec., 24, 19–32, https://doi.org/10.5194/fr-24-19-2021, https://doi.org/10.5194/fr-24-19-2021, 2021
Short summary
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Two new fossil species of turtle beetles have been identified from inclusions in Baltic amber (approx. 41–38 million years old). These beetles are the first described representatives of the family from this amber type and the first known turtle beetles from Europe. The paper also contains a discussion about possible association of the fossil turtle beetles with orchids in the Eocene
amberiferous forestand remarks concerning fossil beetles of the group.
Andris Bukejs and Andrei A. Legalov
Foss. Rec., 23, 169–177, https://doi.org/10.5194/fr-23-169-2020, https://doi.org/10.5194/fr-23-169-2020, 2020
Andris Bukejs, Jan Bezděk, Vitalii I. Alekseev, Kristaps Kairišs, and Ryan C. McKellar
Foss. Rec., 23, 105–115, https://doi.org/10.5194/fr-23-105-2020, https://doi.org/10.5194/fr-23-105-2020, 2020
Short summary
Short summary
A male of the extinct leaf-beetle species Calomicrus eocenicus embedded in Baltic amber is found and compared with an earlier known female. The beetle genitalia are illustrated in detail using X-ray microtomography. The male is smaller than female and has a modified last abdominal segment. The extinct species (about 40 million years old) possesses typical sexual characters which are similar to the characters of extant beetles within the group.
Andris Bukejs, Jiří Háva, and Vitalii I. Alekseev
Foss. Rec., 23, 95–104, https://doi.org/10.5194/fr-23-95-2020, https://doi.org/10.5194/fr-23-95-2020, 2020
Short summary
Short summary
New fossil species of skin beetles (Dermestidae) from two bioinclusions in Eocene ambers (Baltic and Rovno) are described and compared with extinct and extant congeners. The affinity of the Rovno and Baltic amber varieties is briefly reviewed. The checklist of the described beetles (57 species) from Rovno amber is compiled and presented for the first time.
Andris Bukejs, Vitalii I. Alekseev, and Andrei A. Legalov
Foss. Rec., 23, 75–81, https://doi.org/10.5194/fr-23-75-2020, https://doi.org/10.5194/fr-23-75-2020, 2020
Short summary
Short summary
We describe a new species and genus of weevils, Baltacalles triumurbium, from the Eocene amber of the Sambia Peninsula (Kaliningrad Region, Russia). The new fossil represents the first Eocene representative of the group. In addition to the taxonomic work, the locally distinct deposits of Baltic amber in the Kaliningrad Region are listed, discussed, photographed and mapped. The importance of the possible exact labeling of the amber material is underlined.
Vitalii I. Alekseev, Andris Bukejs, and Ryan C. McKellar
Foss. Rec., 22, 111–118, https://doi.org/10.5194/fr-22-111-2019, https://doi.org/10.5194/fr-22-111-2019, 2019
Short summary
Short summary
In this paper we describe a new fossil species of the silvanid flat bark beetle from Baltic amber. The new beetle species from European Eocene belongs to the genus living only in the New World now. Possible, the studied specimen is an adult beetle entrapped in resin shortly after moulting.
Vitalii I. Alekseev, Andris Bukejs, and Xavier Bellés
Foss. Rec., 22, 65–72, https://doi.org/10.5194/fr-22-65-2019, https://doi.org/10.5194/fr-22-65-2019, 2019
Short summary
Short summary
The current paper describes a new fossil genus of spider beetles from Baltic amber (Eocene, 34–55 million years old). This fossil resin can be found throughout the Baltic Sea coastal area in northern Europe (Kaliningrad region, Russia; Poland; Denmark; Sweden; Germany; and Lithuania). The examined fossil material is housed in the private collection of Christel and Hans Werner Hoffeins (Hamburg, Germany).
Andris Bukejs and Andrei A. Legalov
Foss. Rec., 22, 45–49, https://doi.org/10.5194/fr-22-45-2019, https://doi.org/10.5194/fr-22-45-2019, 2019
Short summary
Short summary
This paper describes a new genus and species of weevils from Baltic amber (Eocene, 55–34 million years old). This fossil resin can be found throughout the Baltic Sea coastal area in northern Europe (Kaliningrad region, Russia; Poland; Denmark; Sweden; Germany; and Lithuania). The new fossil weevil is more similar to extant American genera, but its host plants cannot be assumed. The new fossil genus is named in honour of Carsten Gröhn (Germany), an enthusiast and specialist in Baltic amber.
Andris Bukejs and Andrei A. Legalov
Foss. Rec., 22, 25–30, https://doi.org/10.5194/fr-22-25-2019, https://doi.org/10.5194/fr-22-25-2019, 2019
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New entimine weevil, Arostropsis perkovskyi Bukejs and Legalov, sp. nov. from the tribe Naupactini of subfamily Entiminae of the family Curculionidae is described from Late Eocene Rovno amber (Ukraine). The new species is similar to Arostropsis groehni Yunakov et Kirejtshuk, 2011 from Baltic amber. Arostropsis perkovskyi is the second species of the genus Arostropsis. It is the first record of the tribe Naupactini from Rovno amber. Composition of weevil subfamilies in Rovno amber is discussed.
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Ingensalinae subfam. nov. (Hemiptera: Fulgoromorpha: Fulgoroidea: Inoderbidae), a new planthopper subfamily from mid-Cretaceous Kachin amber from Myanmar
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Albian to Turonian agglutinated foraminiferal assemblages of the Lower Saxony Cretaceous sub-basins – implications for sequence stratigraphy and paleoenvironmental interpretation
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Ontogenetic development of the European basal aquatic turtle Pleurosternon bullockii (Paracryptodira, Pleurosternidae)
Cretopachyderes gen. nov., a new remarkable click beetle (Coleoptera: Elateridae: Agrypninae) from the mid-Cretaceous Burmese amber
The genus Allodia (Diptera: Mycetophilidae) in Miocene Ethiopian amber
The southernmost occurrence of Ichthyosaurus from the Sinemurian of Portugal
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The first Fulgoridae (Hemiptera: Fulgoromorpha) from the Eocene of the central Qinghai–Tibetan Plateau
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At the crossroads: early Miocene marine fishes of the proto-Mediterranean Sea
A new enigmatic lineage of Dascillidae (Coleoptera: Elateriformia) from Eocene Baltic amber described using X-ray microtomography, with notes on Karumiinae morphology and classification
First record of the subfamily Sagrinae (Coleoptera: Chrysomelidae) from the Eocene of North America
The polycentropodid genus Cernotina (Insecta, Trichoptera) in Miocene Dominican amber
Two new species of the family Rhynchitidae (Coleoptera: Curculionoidea) from Eocene Baltic amber, with key to species and assumed trophic relationships
Extensive vertebrate tracksite from the Upper Red Formation (middle–late Miocene), west Zanjan, northwestern Iran
A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins
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Selenogonus narinoensis Stirton, 1947 (Tayassuidae, Cetartiodactyla, Mammalia): taxonomic status and paleobiogeographic implications
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Cihang Luo, Zhishun Song, Xiaojing Liu, Tian Jiang, Edmund A. Jarzembowski, and Jacek Szwedo
Foss. Rec., 24, 455–465, https://doi.org/10.5194/fr-24-455-2022, https://doi.org/10.5194/fr-24-455-2022, 2022
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Ingensala xiai gen. et sp. nov. is described based on a specimen from mid-Cretaceous Burmese amber. The new genus can be definitely attributed to Inoderbidae mainly based on its head structure, pronotum, and mesonotum without median and lateral carinae, but it differs from the type genus to a large extent and two new subfamilies are established for these two genera respectively. The similarities between Ingensala, Qiyangiricaniidae, Weiwoboidae, and Tropiduchidae are discussed.
Jia Gao, Michael S. Engel, Friðgeir Grímsson, Lei Gu, Dong Ren, and Tai-Ping Gao
Foss. Rec., 24, 445–453, https://doi.org/10.5194/fr-24-445-2022, https://doi.org/10.5194/fr-24-445-2022, 2022
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We described the first xiphydriid wood wasp fossil, which extends the occurrence of Xiphydriidae into the mid-Cretaceous and adds to the known diversity of features in the family. In addition, the simplification of the wing venation and hypothesized host-plant affiliations of early xiphydriids are discussed based on the pollen of Cycadales preserved with the wasp.
Richard M. Besen, Ulrich Struck, and Ekbert Seibertz
Foss. Rec., 24, 395–441, https://doi.org/10.5194/fr-24-395-2021, https://doi.org/10.5194/fr-24-395-2021, 2021
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The agglutinated foraminiferal fauna in carbonate rocks from the mid-Cretaceous of Lower Saxony is documented and applied to reconstruct former paleoenvironmental conditions. Especially, sea level fluctuations are possible to reconstruct from changes in the foraminiferal record. Differences of the foraminiferal assemblages in different locations, closer or further away from the former coast, are discussed. Described bio-events of the time interval are linked to foraminiferal bio-events.
Corentin Jouault, Arvid Aase, and André Nel
Foss. Rec., 24, 379–393, https://doi.org/10.5194/fr-24-379-2021, https://doi.org/10.5194/fr-24-379-2021, 2021
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Here we describe two new genera of fossil sawfly belonging to the Xyelidae. The fossil record of the family during the Mesozoic and Cenozoic is analyzed, supporting the hypothesis that the Eocene biomes shape the current distribution of the Xyelidae. These discoveries were made possible thanks to the study of old specimens housed in institutional collections or donated by an American citizen.
Andrea Guerrero and Adán Pérez-García
Foss. Rec., 24, 357–377, https://doi.org/10.5194/fr-24-357-2021, https://doi.org/10.5194/fr-24-357-2021, 2021
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Several British specimens corresponding to shells of small pleurosternid turtles (Lower Cretaceous) are analysed in detail here. Due to the scarce knowledge available to date about these specimens, their taxonomic status was doubtful. A detailed study through qualitative and quantitative approaches is performed. The results provide evidence of a significant range of shape variability because of the ontogeny. Thus, their attribution to juvenile individuals of Pleurosternon bullockii is justified.
Robin Kundrata, Alexander S. Prosvirov, Roger Long, and Gabriela Packova
Foss. Rec., 24, 347–355, https://doi.org/10.5194/fr-24-347-2021, https://doi.org/10.5194/fr-24-347-2021, 2021
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Although the Mesozoic Era played an important role in the evolution and diversification of Elateridae, the Cretaceous click-beetle fauna remains very poorly known. Here we describe Cretopachyderes burmitinus gen. et sp. nov. based on a single specimen from the mid-Cretaceous Burmese amber. This species is remarkable for its extremely long posterior angles of pronotum, which is a unique character among fossil Elateridae.
Valentine Bouju, Simon Rosse-Guillevic, Marion Griffon, Błażej Bojarski, Jacek Szwedo, and Vincent Perrichot
Foss. Rec., 24, 339–346, https://doi.org/10.5194/fr-24-339-2021, https://doi.org/10.5194/fr-24-339-2021, 2021
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An extinct species of fly is described from 16–23-million-year-old amber of Ethiopia. It is the first fossil of the fly family Mycetophilidae discovered from Africa. This discovery informs the evolutionary history of Afrotropical fungus gnats.
João Sousa and Octávio Mateus
Foss. Rec., 24, 287–294, https://doi.org/10.5194/fr-24-287-2021, https://doi.org/10.5194/fr-24-287-2021, 2021
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In this work we sought to use modern research techniques to revisit a ichthyosaur specimen from Portugal, the most complete fin of our fossil record, and verify the validity of the specimen's historical identification. Through the use of phylogenetic analysis and anatomical comparisons with other specimens, we have assigned a new classification to the specimen and concluded it is the southernmost exemplar of the group.
Stephen J. Godfrey, Carolina S. Gutstein, and Donald J. Morgan III
Foss. Rec., 24, 275–285, https://doi.org/10.5194/fr-24-275-2021, https://doi.org/10.5194/fr-24-275-2021, 2021
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A new species of dolphin is named on the basis of a partial skull. It was found on a riverbed in North Carolina, USA. During the Miocene it lived in a marine environment. It is most closely related to the Amazon river dolphin. During the Miocene and Pliocene epochs, relatives of the freshwater river dolphins were living in marine environments. More recently, these marine species became extinct, survived only by those species that successfully invaded South American riverine systems.
Xiao-Ting Xu, Wei-Yu-Dong Deng, Zhe-Kun Zhou, Torsten Wappler, and Tao Su
Foss. Rec., 24, 263–274, https://doi.org/10.5194/fr-24-263-2021, https://doi.org/10.5194/fr-24-263-2021, 2021
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The Qinghai–Tibetan Plateau (QTP) played a crucial role in shaping the biodiversity in Asia during the Cenozoic, but the evolutionary history of biodiversity in this large region remains unclear. Here, we report a new fossil record of Fulgoridae from the middle Eocene Lunpola Basin, central QTP, which represents the earliest Fulgoridae fossil record in Asia and suggests a warm climate with relatively low elevation during the middle Eocene in central QTP.
Adán Pérez-García
Foss. Rec., 24, 247–262, https://doi.org/10.5194/fr-24-247-2021, https://doi.org/10.5194/fr-24-247-2021, 2021
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The early Oligocene
Podocnemisfajumensis and the early Miocene
Podocnemisaegyptiaca are two podocnemidid pleurodiran turtles from northern Egypt, defined more than a century ago. Both species are confirmed as valid. They are attributed to two new genera, corresponding to the oldest defined for the African record of Erymnochelyini. Thus, the new combinations Shetwemys fajumensis and Apeshemys aegyptiaca are proposed.
Konstantina Agiadi, Efterpi Koskeridou, and Danae Thivaiou
Foss. Rec., 24, 233–246, https://doi.org/10.5194/fr-24-233-2021, https://doi.org/10.5194/fr-24-233-2021, 2021
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Climate and connection between marine basins have formed the modern Mediterranean fish fauna. Here, we present new data for the early stages of the fish fauna, 20–23 million years ago, when the Mediterranean Sea was starting to take its actual shape, and we show its relationship to the fish faunas of the surrounding seas. Two new fish species are described: Ariosoma mesohellenica and Gnathophis elongatus.
Robin Kundrata, Matthew L. Gimmel, Gabriela Packova, Andris Bukejs, and Stephan M. Blank
Foss. Rec., 24, 141–149, https://doi.org/10.5194/fr-24-141-2021, https://doi.org/10.5194/fr-24-141-2021, 2021
Short summary
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Dascillidae are a species-poor beetle group with a scarce fossil record. Here, we used light microscopy and X-ray microtomography to describe Baltodascillus serraticornis gen. et sp. nov. based on a well-preserved specimen from Eocene Baltic amber. We tentatively place this species in the subfamily Karumiinae. This is the first representative of the Dascillidae formally described from Baltic amber and the first described fossil member of the subfamily Karumiinae.
Andrei A. Legalov
Foss. Rec., 24, 135–139, https://doi.org/10.5194/fr-24-135-2021, https://doi.org/10.5194/fr-24-135-2021, 2021
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Palaeatalasis monrosi gen. at sp. nov. belonging to the subfamily Sagrinae (Chrysomelidae) is described from the Green River Formation (age 53.5–48.5 Ma). The new genus is similar to Atalasis Lacordaire, 1845 from Argentina. It also differs from the Eocene Eosagra Haupt, 1950 and the Paleocene Gallopsis Legalov, Kirejtshuk et Nel, 2019. It is the first record of the Sagrinae from North America and the fourth known species of the family Chrysomelidae from the Green River.
Wilfried Wichard and Christian Neumann
Foss. Rec., 24, 129–133, https://doi.org/10.5194/fr-24-129-2021, https://doi.org/10.5194/fr-24-129-2021, 2021
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A new polycentropodid caddisfly species is described from Miocene Dominican amber. The family Polycentropodidae is therefore represented in the Dominican amber with two species belonging to the genus Cernotina: C. pulchra Wichard, 2007, and C. fossilinova sp. nov. The endemic C. danieli Flint & Sykora, 2004, is the only representative of the genus occurring on Hispaniola today and is similar to the two fossil species.
Andris Bukejs and Andrei A. Legalov
Foss. Rec., 24, 117–127, https://doi.org/10.5194/fr-24-117-2021, https://doi.org/10.5194/fr-24-117-2021, 2021
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Baltocar sontagae sp. nov. and Pseudomesauletes lobanovi sp. nov. from the family Rhynchitidae are described from Eocene Baltic amber. It is the first record of Pseudomesauletes from Baltic amber. Keys to species of the genus Baltocar and to the Eocene species of the genus Pseudomesauletes are given. Assumed trophic relationships of the genus Baltocar with Cupressaceae and Pseudomesauletes lobanovi sp. nov. with Rosaceae are discussed.
Nasrollah Abbassi, Masoumeh Khoshyar, Spencer G. Lucas, and Farid Esmaeili
Foss. Rec., 24, 101–116, https://doi.org/10.5194/fr-24-101-2021, https://doi.org/10.5194/fr-24-101-2021, 2021
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The Chehrabad area, NW Iran, is known as the historical site of Saltmen mine dated to the Achaemenid and Sassanid eras. We, however, discovered animal footprints in NW Chehrabad (ca. 3 km NW of the Saltmen mine) on a very large slab. These footprints belong to the Miocene age and include canid, felid and bird tracks as old as 10.7 Ma. The canid footprint record establishes the late Miocene presence of canids on the Iranian Plateau as part of the Eurasia-wide “Eucyon event”.
Alice Belluzzo and Olivier Lambert
Foss. Rec., 24, 77–92, https://doi.org/10.5194/fr-24-77-2021, https://doi.org/10.5194/fr-24-77-2021, 2021
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Whereas true dolphins (Delphinidae) are the most diversified family of cetaceans today, their evolutionary history remains poorly known due to a relatively patchy fossil record. Based on a fossil skull discovered in early Pliocene (5 to 4.4 million years ago) marine sediments from Antwerp (Belgium), we describe here a new genus and species of small dolphin, Pliodelphis doelensis. This is the first delphinid species to be recorded from the early Pliocene in the North Sea.
Vitalii I. Alekseev and Andris Bukejs
Foss. Rec., 24, 93–99, https://doi.org/10.5194/fr-24-93-2021, https://doi.org/10.5194/fr-24-93-2021, 2021
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Clown beetles (Histeridae) are insufficiently studied in fossil resins. The aim of the present research is to describe a new species of Bacaniini from Eocene Baltic amber. The specimen is studied using X-ray micro-computed tomography, imaged and compared with fossil and extant related beetles. A mixed sporophagous–predaceous diet in rotten wood of fallen and standing trees was assumed to be the ecological niche for the fossil species.
Germán M. Gasparini, Oscar F. Moreno-Mancilla, and José L. Cómbita
Foss. Rec., 24, 65–75, https://doi.org/10.5194/fr-24-65-2021, https://doi.org/10.5194/fr-24-65-2021, 2021
Rainer R. Schoch
Foss. Rec., 24, 49–64, https://doi.org/10.5194/fr-24-49-2021, https://doi.org/10.5194/fr-24-49-2021, 2021
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The 296 million year old rocks of Odernheim (Germany) preserve numerous fossils of fishes and amphibians (temnospondyls) of Permian age. This site is exceptional for yielding two large temnospondyl predators: the 2 m long Sclerocephalus nobilis and 1.5 m long Glanochthon lellbachae. A revision of G. lellbachae reveals that it forms the most ancient relative of the genus Glanochthon, a gracile fish eater, and that the origin of this group can be traced back to the genus Sclerocephalus.
Thanit Nonsrirach, Sita Manitkoon, and Komsorn Lauprasert
Foss. Rec., 24, 33–47, https://doi.org/10.5194/fr-24-33-2021, https://doi.org/10.5194/fr-24-33-2021, 2021
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Although thousands of vertebrate remains have been found in Thailand, few amphibian remains have been reported. Here, we present an overview on the Thai amphibian paleo-diversity. The Thai amphibian fossils show the most diverse Mesozoic amphibian record in Southeast Asia, and this agrees with the hypothesis of a large physical connection between the Indochina block and Laurussia during the Mesozoic era.
Vitalii I. Alekseev, Jerit Mitchell, Ryan C. McKellar, Mauricio Barbi, Hans C. E. Larsson, and Andris Bukejs
Foss. Rec., 24, 19–32, https://doi.org/10.5194/fr-24-19-2021, https://doi.org/10.5194/fr-24-19-2021, 2021
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Two new fossil species of turtle beetles have been identified from inclusions in Baltic amber (approx. 41–38 million years old). These beetles are the first described representatives of the family from this amber type and the first known turtle beetles from Europe. The paper also contains a discussion about possible association of the fossil turtle beetles with orchids in the Eocene
amberiferous forestand remarks concerning fossil beetles of the group.
Dimitris S. Kostopoulos, Ayla Sevim Erol, Alper Yener Yavuz, and Serdar Mayda
Foss. Rec., 24, 9–18, https://doi.org/10.5194/fr-24-9-2021, https://doi.org/10.5194/fr-24-9-2021, 2021
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Biodiversity at the primate-bearing Çorakyerler site, Turkey, dating to the upper Miocene, is high, including up to 10 distinct bovid taxa. In this work, we describe five new bovid crania of a new bovid genus and species, Gangraia anatolica. The new taxon is characterized by long, keelless, and transversally ridged, homonymously twisted horn cores, and it shows a particular mixture of caprine and alcelaphine cranial features that are similar to the Alcelaphini–Caprini–Hippotragini clade.
Andrei A. Legalov, Vitaliy Y. Nazarenko, and Evgeny E. Perkovsky
Foss. Rec., 24, 1–7, https://doi.org/10.5194/fr-24-1-2021, https://doi.org/10.5194/fr-24-1-2021, 2021
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Glaesotropis rohdendorfi sp. nov. belongs to the subgenus Electranthribus, described from Eocene Rovno amber. The new species is similar to G. zherikhini from Baltic amber. It is the first described beetle from the Olevsk amber locality, the sixth amber species reported from the Zhytomyr region, the first record of the subgenus Electranthribus, and the third Anthribidae from Rovno amber. An aggregation of glaesacarid mites as a syninclusion with the fungus weevil is reported for the first time.
Andrei A. Legalov and Markus J. Poschmann
Foss. Rec., 23, 197–204, https://doi.org/10.5194/fr-23-197-2020, https://doi.org/10.5194/fr-23-197-2020, 2020
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The new weevil Igneonasus rudolphi gen. et sp. nov. of the tribe Ceutorhynchini is described from the late Oligocene of Fossillagerstätte Enspel, Germany. The new genus is similar to the Recent genus Stenocarus and the largest representative of the supertribe Ceutorhynchitae. It is the first fossil Curculionidae species described from the paleolake Enspel. In this ancient ecosystem, weevils were at least sometimes an important food resource for the cyprinid fish Palaeorutilus enspelensis.
Chang-Fu Zhou, Jiahao Wang, and Ziheng Zhu
Foss. Rec., 23, 191–196, https://doi.org/10.5194/fr-23-191-2020, https://doi.org/10.5194/fr-23-191-2020, 2020
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Filter-feeding ctenochasmatid pterosaurs flourished in the Jehol Biota. Here, a new wing skeleton of the ctenochasmatid Forfexopterus is described from the Early Cretaceous Jiufotang Formation in Jianchang, western Liaoning, China. Interestingly, it exhibits a skeletal maturity with co-ossified elements, but it is only about 75 % the size of the immature holotype, revealing a developmental variation of Forfexopterus.
Victoria M. Arbour, Derek Larson, Matthew Vavrek, Lisa Buckley, and David Evans
Foss. Rec., 23, 179–189, https://doi.org/10.5194/fr-23-179-2020, https://doi.org/10.5194/fr-23-179-2020, 2020
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We describe the first dinosaur skeletal fossils from the Dunvegan Formation of British Columbia, collected near the Pine River in 1930. These are some of the oldest dinosaur body fossils from British Columbia and western Canada. We identify these bones as partial dorsal vertebrae and ribs from an ankylosaur; ankylosaur footprints are some of the most common fossils in this formation and in this region.
Andris Bukejs and Andrei A. Legalov
Foss. Rec., 23, 169–177, https://doi.org/10.5194/fr-23-169-2020, https://doi.org/10.5194/fr-23-169-2020, 2020
Irene Montañez-Rivera and Oliver Hampe
Foss. Rec., 23, 151–168, https://doi.org/10.5194/fr-23-151-2020, https://doi.org/10.5194/fr-23-151-2020, 2020
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The locality of Groß Pampau in northern Germany is famous for its rich marine mammal assemblage of the Miocene age. A newly discovered ear bone of a fossil sperm whale is described here with morphological characters so far unknown from other sperm whales. It remains unclear at this point if it could belong to a sperm whale whose fragments were discovered in the same locality or to another, already-described taxon, of which the ear bones are still unknown.
Marine Fau, Loïc Villier, Timothy A. M. Ewin, and Andrew S. Gale
Foss. Rec., 23, 141–149, https://doi.org/10.5194/fr-23-141-2020, https://doi.org/10.5194/fr-23-141-2020, 2020
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Forcipulatacea is one of the major clades of extant sea stars with 400 extant species described, but with fewer than 25 fossil species known. Thus, the identification of any new fossil representatives is significant. We reappraise Ophidiaster davidsoni from the Tithonian of Boulogne, France, which was assigned to another major extant group, and reassign it within a new forcipulatacean genus Psammaster gen. nov. A phylogenetic analysis does not place it within any existing forcipulatacean family.
David J. Cicimurri, Jun A. Ebersole, and George Martin
Foss. Rec., 23, 117–140, https://doi.org/10.5194/fr-23-117-2020, https://doi.org/10.5194/fr-23-117-2020, 2020
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Mennerotodus is a genus of fossil shark that lived during the Paleogene Period, between 65 and 38 million years ago, and was previously known only from Asia and Europe. In this study, new species of Mennerotodus have been identified in the USA from Alabama (Mennerotodus mackayi) and South Carolina (Mennerotodus parmleyi). Mennerotodus mackayi is the oldest of the species, suggesting the genus originated in the Gulf Coastal Plain of the USA during the Paleocene Epoch (~ 65 million years ago).
Andris Bukejs, Jan Bezděk, Vitalii I. Alekseev, Kristaps Kairišs, and Ryan C. McKellar
Foss. Rec., 23, 105–115, https://doi.org/10.5194/fr-23-105-2020, https://doi.org/10.5194/fr-23-105-2020, 2020
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A male of the extinct leaf-beetle species Calomicrus eocenicus embedded in Baltic amber is found and compared with an earlier known female. The beetle genitalia are illustrated in detail using X-ray microtomography. The male is smaller than female and has a modified last abdominal segment. The extinct species (about 40 million years old) possesses typical sexual characters which are similar to the characters of extant beetles within the group.
Walter G. Joyce and Yann Rollot
Foss. Rec., 23, 83–93, https://doi.org/10.5194/fr-23-83-2020, https://doi.org/10.5194/fr-23-83-2020, 2020
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Peltochelys duchastelii is an enigmatic fossil turtle from the Early Cretaceous of Bernissart, Belgium. Here we provide an alternative interpretation of the morphology of this turtle, which suggests for the first time relationships with paracryptodires, a now extinct group of turtles known from coeval deposits throughout western Europe and North America.
Andris Bukejs, Jiří Háva, and Vitalii I. Alekseev
Foss. Rec., 23, 95–104, https://doi.org/10.5194/fr-23-95-2020, https://doi.org/10.5194/fr-23-95-2020, 2020
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New fossil species of skin beetles (Dermestidae) from two bioinclusions in Eocene ambers (Baltic and Rovno) are described and compared with extinct and extant congeners. The affinity of the Rovno and Baltic amber varieties is briefly reviewed. The checklist of the described beetles (57 species) from Rovno amber is compiled and presented for the first time.
Andris Bukejs, Vitalii I. Alekseev, and Andrei A. Legalov
Foss. Rec., 23, 75–81, https://doi.org/10.5194/fr-23-75-2020, https://doi.org/10.5194/fr-23-75-2020, 2020
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We describe a new species and genus of weevils, Baltacalles triumurbium, from the Eocene amber of the Sambia Peninsula (Kaliningrad Region, Russia). The new fossil represents the first Eocene representative of the group. In addition to the taxonomic work, the locally distinct deposits of Baltic amber in the Kaliningrad Region are listed, discussed, photographed and mapped. The importance of the possible exact labeling of the amber material is underlined.
Lu Chen, Dong Ren, and Olivier Béthoux
Foss. Rec., 23, 71–74, https://doi.org/10.5194/fr-23-71-2020, https://doi.org/10.5194/fr-23-71-2020, 2020
Francesco Parisi and Fabrizio Fanti
Foss. Rec., 22, 119–123, https://doi.org/10.5194/fr-22-119-2019, https://doi.org/10.5194/fr-22-119-2019, 2019
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Only in recent years have new genera and species of the subfamily Silinae Mulsant, 1862 been described as inclusions in amber. However, no representative of the genus Silis Charpentier, 1825 had been described from Baltic amber, even if few specimens were already known at the generic level. Silis lombardii sp. nov. is entirely dark brown and shows (as usual for the genus) the two characteristic lobes in the sides of pronotum, elongated elytra, and a basal small tooth only on the anterior claws.
Vitalii I. Alekseev, Andris Bukejs, and Ryan C. McKellar
Foss. Rec., 22, 111–118, https://doi.org/10.5194/fr-22-111-2019, https://doi.org/10.5194/fr-22-111-2019, 2019
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In this paper we describe a new fossil species of the silvanid flat bark beetle from Baltic amber. The new beetle species from European Eocene belongs to the genus living only in the New World now. Possible, the studied specimen is an adult beetle entrapped in resin shortly after moulting.
Nicole Klein, Antoine Verrière, Heitor Sartorelli, Tanja Wintrich, and Jörg Fröbisch
Foss. Rec., 22, 91–110, https://doi.org/10.5194/fr-22-91-2019, https://doi.org/10.5194/fr-22-91-2019, 2019
Max Wisshak and Liane Hüne
Foss. Rec., 22, 77–90, https://doi.org/10.5194/fr-22-77-2019, https://doi.org/10.5194/fr-22-77-2019, 2019
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Here, we describe an enigmatic new microfossil that was found encrusting a belemnite from the Middle Jurassic of the Falaises des Vaches Noires in Normandy, France. The organism has produced a conspicuous attachment etching on the belemnite for better adhesion and this trace fossil is new to science as well. Based on morphological criteria and the capacity to bioerode, the new microproblematicum can best be compared to encrusting bryozoans and foraminiferans.
Vitalii I. Alekseev, Andris Bukejs, and Xavier Bellés
Foss. Rec., 22, 65–72, https://doi.org/10.5194/fr-22-65-2019, https://doi.org/10.5194/fr-22-65-2019, 2019
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The current paper describes a new fossil genus of spider beetles from Baltic amber (Eocene, 34–55 million years old). This fossil resin can be found throughout the Baltic Sea coastal area in northern Europe (Kaliningrad region, Russia; Poland; Denmark; Sweden; Germany; and Lithuania). The examined fossil material is housed in the private collection of Christel and Hans Werner Hoffeins (Hamburg, Germany).
Jin Wang, Olivier Béthoux, Dong Ren, and Yingying Cui
Foss. Rec., 22, 73–76, https://doi.org/10.5194/fr-22-73-2019, https://doi.org/10.5194/fr-22-73-2019, 2019
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In this paper we focus on an insect wing fragment from the rarely known Taiyuan Formation (Early Permian; China). It is the first discovery of an arthropod as well as being the first insect, but currently we think the combination characters that the new material exhibited make it difficult to assign it to any known insect group. This indicates that more data are needed in the future. Hopefully our current documentation will be useful for the potential fossil discovery in the Taiyuan Formation.
Chang-Fu Zhou, Wen-Hao Wu, and Márton Rabi
Foss. Rec., 22, 57–64, https://doi.org/10.5194/fr-22-57-2019, https://doi.org/10.5194/fr-22-57-2019, 2019
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The Jehol Biota of northeastern China (western Liaoning and conjoint areas) is renowned for its exquisite preservation of plant, invertebrate and vertebrate fossils. Here, we report three new specimens of the freshwater sinemydid turtle Ordosemys liaoxiensis from Hengtongshan Formation of Meihekou City, Jilin Province, northeastern China. As the first Mesozoic turtle of Jilin Province, this record represents the first tetrapod to indicate the presence of the Jehol Biota in the region.
Wilfried Wichard and Christian Neumann
Foss. Rec., 22, 51–56, https://doi.org/10.5194/fr-22-51-2019, https://doi.org/10.5194/fr-22-51-2019, 2019
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We describe a bizarre and extinct caddisfly species, Cretapsyche palpinova sp. nov., from mid-Cretaceous Burmese amber.
Andris Bukejs and Andrei A. Legalov
Foss. Rec., 22, 45–49, https://doi.org/10.5194/fr-22-45-2019, https://doi.org/10.5194/fr-22-45-2019, 2019
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This paper describes a new genus and species of weevils from Baltic amber (Eocene, 55–34 million years old). This fossil resin can be found throughout the Baltic Sea coastal area in northern Europe (Kaliningrad region, Russia; Poland; Denmark; Sweden; Germany; and Lithuania). The new fossil weevil is more similar to extant American genera, but its host plants cannot be assumed. The new fossil genus is named in honour of Carsten Gröhn (Germany), an enthusiast and specialist in Baltic amber.
Volker Lohrmann, Michael Ohl, Peter Michalik, James P. Pitts, Laurent Jeanneau, and Vincent Perrichot
Foss. Rec., 22, 31–44, https://doi.org/10.5194/fr-22-31-2019, https://doi.org/10.5194/fr-22-31-2019, 2019
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Here, we report three new fossil rhopalosomatid wasp specimens from Dominican and Mexican amber. Rhopalosoma hispaniola Lohrmann sp. nov. is described and documented from Dominican amber by two separate inclusions – one of each sex. An additional fossil female Rhopalosoma is described and documented from Mexican amber. The new fossils do not only represent the first fossil records of an extant genus of this peculiar family but also the first records of the family in Dominican and Mexican amber.
Andris Bukejs and Andrei A. Legalov
Foss. Rec., 22, 25–30, https://doi.org/10.5194/fr-22-25-2019, https://doi.org/10.5194/fr-22-25-2019, 2019
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New entimine weevil, Arostropsis perkovskyi Bukejs and Legalov, sp. nov. from the tribe Naupactini of subfamily Entiminae of the family Curculionidae is described from Late Eocene Rovno amber (Ukraine). The new species is similar to Arostropsis groehni Yunakov et Kirejtshuk, 2011 from Baltic amber. Arostropsis perkovskyi is the second species of the genus Arostropsis. It is the first record of the tribe Naupactini from Rovno amber. Composition of weevil subfamilies in Rovno amber is discussed.
Gloria Arratia, Hans-Peter Schultze, and Helmut Tischlinger
Foss. Rec., 22, 1–23, https://doi.org/10.5194/fr-22-1-2019, https://doi.org/10.5194/fr-22-1-2019, 2019
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The teleosts (e.g., herrings, trouts) comprise the largest group of living fishes today. The aim of the present study is to investigate and describe a new species of the primitive teleost Tharsis from the Late Jurassic. Tharsis is currently known by one species, Tharsis dubious, which is one of the most common fish in the Solnfohen limestone, Bavaria, Germany. A new species, Tharsis elleri, is described and assigned to the family Ascalaboidae within the new order Ascalaboidiformes.
Walter G. Joyce, Virginie S. Volpato, and Yann Rollot
Foss. Rec., 21, 301–310, https://doi.org/10.5194/fr-21-301-2018, https://doi.org/10.5194/fr-21-301-2018, 2018
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Pig-nosed turtles are an enigmatic group of reptiles with an extensive fossil record across the globe. The group is known to have inhabited North America during the Eocene, about 55 to 40 million years ago, but information is still limited regarding the exact morphology of these turtles, as remains are few. Here we document the morphology of the only known skull of a North American pig-nosed turtle based on a fossil from the middle Eocene Washakie Formation of Sweetwater County, Wyoming, USA.
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Short summary
A new micro-histerid species is described and illustrated from Eocene Baltic amber. As the first extinct member of the subfamily Abraeinae (Histeridae) and the smallest known fossil histerid specimen, this material was examined using a combination of light microscopy and X-ray micro-computed tomography (μCT). Internal features of the abdomen are well preserved, allowing us to study sclerotized parts of the aedeagus and illustrate these structures in detail.
A new micro-histerid species is described and illustrated from Eocene Baltic amber. As the first...
