A New Crown-Group Salamander from the Early Cretaceous of Western Siberia

Alexander O. Averianov, Alexei V. Voronkevich

Abstract


Kiyatriton leshchinskiyi gen. & sp. nov. is based on the atlas centrum and incomplete femora from the Lower Cretaceous (Aptian-Albian) Ilek Formation at Shestakovo 1, Kemerovo region, Western Siberia, Russia It is referred to the crown-group salamanders (Urodela incertae sedis) because of presence of enclosed spinal nerve foramina in the atlas. The new taxon is distinctive in the moderately dorsoventrally compressed anterior cotylar surfaces and unique tripartite division of the posterior condyle articular surface on the atlas. It is the first «lissamphibian» discovered from the Mesozoic of Siberia.

Keywords


Kiyatriton; Urodela; Caudata; Amphibia; Cretaceous; Siberia

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References


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DOI: http://dx.doi.org/10.30906/1026-2296-2019-9-%25s-209-214

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