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A new Tolypelepidid (Agnatha, Heterostraci) from the Late Silurian of Poland

Published online by Cambridge University Press:  09 November 2015

Marek Dec
Marek Dec*
Affiliation:
Institute of Paleobiology, Polish Academy of Sciences, Twarda 51/55, 00-818, Warsaw, Poland 〈mdec@twarda.pan.pl〉
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Abstract

Tolypelepis mielnikensis n. sp. from a core sample of the Late Silurian (Pridoli) succession in Mielnik, Poland shares tolypelepidid features such as a subdivision of the dorsal shield into epitega, and ornamentation of short dentine ridges grouped into scale-like units with a coarser, higher median ridge encircled by narrower and lower ridges. A constriction of the dorsal shield anterior to the orbit level with the orbital notches significantly deeper than in other tolypelepidids discriminates it from other Tolypelepis species.

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Articles
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Journal of Paleontology , Volume 89 , Issue 4 , July 2015 , pp. 637 - 644
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Copyright © 2015, The Paleontological Society 

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