A new crown-group frog (Amphibia, Anura) from the early Cretaceous of northeastern Inner Mongolia, China

Title Variants

Alternative: Early Cretaceous anuran from China

Related Titles

Series: American Museum novitates, number 3876

By

Gao, Keqin, 1955- , author

Chen, Jianye. , author

Type

Book

Material

Published material

Publication info

New York, NY American Museum of Natural History [2017]

Notes

Caption title.

"March 14, 2017."

Based on 12 well-preserved skeletons of postmetamorphic individuals, a new crown-group frog taxon is named and described from the Lower Cretaceous Guanghua (upper part of Longjiang) Formation (stratigraphic equivalent of the world-famed Yixian Formation) exposed in Dayangshu Basin, Hulunbuir, in the far northeast of Inner Mongolia, China. The new taxon, Genibatrachus baoshanensis, documents another early Cretaceous anuran having reduction of the presacral vertebrae to eight in number, similar to several frog taxa of roughly the same age from Spain and Brazil. The new frog also displays several features that are ontogenetically and phylogenetically informative, including ontogenetic fusion of the palatine to the sphenethmoid, and ontogenetic fusion of ribs to the diapophyses of the posterior trunk vertebrae. In addition, the new discovery extends the geographic range of early Cretaceous frogs of the Jehol Biota northward to near the 50th parallel north in East Asia.

Subjects

Amphibians , Amphibians, Fossil , Anura , China , Cretaceous , Frogs, Fossil , Genibatrachus baoshanensis , Hulunbuir Shi , Inner Mongolia , Paleontology , Phylogeny

Call Number

QL1 .A436 no.3876 2017

Language

English

Identifiers

DOI: https://doi.org/10.1206/3876.1
OCLC: 975288425