Articles | Volume 19, issue 1
https://doi.org/10.5194/fr-19-61-2016
https://doi.org/10.5194/fr-19-61-2016
Research article
 | 
20 Jan 2016
Research article |  | 20 Jan 2016

Scale morphology and specialized dorsal scales of a new teleosteomorph fish from the Aptian of West Gondwana

P. G. Giordano, G. Arratia, and H.-P. Schultze

Cited articles

Arcucci, A. B., Puebla, G., Codorniú, L., Giordano, P. G., and Prámparo, M.: A lacustrine biotic assemblage in the Early Cretaceous of central Argentina: La Cantera Formation, in: Proc. Univ. Autón. Madrid, 10th Internat. Symp. Mesozoic Terrestrial Ecosyst. Biota, 16–18 September 2009, Teruel, Spain, 111–112, 2009.
Arcucci, A. B., Prámparo, M. B., Codorniú, L., Giordano, P. G., Castillo-Elías, G., Puebla, G. G., Mego, N., Gómez, M., and Bustos Escalona, E.: Biotic assemblages from Lower Cretaceous lacustrine systems, San Luis Basin, Central-western Argentina, Bol. Geol. Miner., 126, 109–128, 2015.
Arratia, G.: New teleostean fishes from the Jurassic of southern Germany and the systematic problems concerning the “pholidophoriforms”, Paläontol. Z., 74, 113–143, 2000.
Arratia, G.: The sister-group of Teleostei: consensus and disagreements, J. Vertebr. Paleontol., 21, 767–773, 2001.
Arratia, G.: Mesozoic halecostomes and early radiation of teleosts, in: Mesozoic Fishes 3: Systematics, Paleoenvironments and Biodiversity, edited by: Arratia, G. and Tintori, A., Verlag Dr. Friedrich Pfeil, München, 279–315, 2004.
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Short summary
This work is based on scales of a new group of Cretaceous South American fishes. Detail studies about scales are very useful, considering that many fossil fishes are known because of their squamation. Comparisons with other Mesozoic fishes were made. Among main conclusions are that these fishes present lepisosteoid-type scales (with enamel but without dentine) and in particular paired dorsal scales in the position where other fishes commonly have median dorsal ridge scales.
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