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Fossil Record A palaeontological open-access journal of the Museum für Naturkunde
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FR | Articles | Volume 23, issue 1
Foss. Rec., 23, 105–115, 2020
https://doi.org/10.5194/fr-23-105-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Foss. Rec., 23, 105–115, 2020
https://doi.org/10.5194/fr-23-105-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 11 Jun 2020

Research article | 11 Jun 2020

Description of the male of fossil Calomicrus eocenicus Bukejs et Bezděk (Coleoptera: Chrysomelidae: Galerucinae) from Eocene Baltic amber using X-ray microtomography

Andris Bukejs et al.

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Cited articles

Aleksandrova, G. N. and Zaporozhets, N. I.: Palinological characteristic of the Upper Cretaceous and Paleogene sediments of the western part of the Sambian peninsula (the Kaliningrad region). Paper 2, Stratigraphy, Geological correlation, 16, 75–86, 2008. 
Alekseev V. I.: New taxa of Baltic amber false darkling beetles (Coleoptera: Melandryidae), Baltic Journal of Coleopterology, 14, 79–96, 2014. 
Alekseev, V. I. and Bukejs, A.: New Zopheridae (Coleoptera: Tenebrionoidea) from Baltic amber, Zootaxa, 4178, 409–427, https://doi.org/10.11646/zootaxa.4178.3.6, 2016. 
Alekseev, V. I. and Bukejs, A.: New fossil taxa of Ischalia Pascoe (Coleoptera: Ischaliidae) from Eocene Baltic amber, Zootaxa, 4323, 229–238, https://doi.org/10.11646/zootaxa.4323.2.6, 2017. 
Alekseev, V. I. and Grzymala, T. L.: New Aderidae (Coleoptera: Tenebrionoidea) from Baltic and Bitterfeld amber, Zootaxa, 3956, 239–257, https://doi.org/10.11646/zootaxa.3956.2.5, 2015. 
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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.
A male of the extinct leaf-beetle species Calomicrus eocenicus embedded in Baltic amber is found...
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