地质学报（英文版）2004，Vol.78Issue(6)：1169-1178,10.
Taxonomy and Stratigraphy of Late Mesozoic Anurans and Urodeles from China
Taxonomy and Stratigraphy of Late Mesozoic Anurans and Urodeles from China
摘要
Abstract
Three anurans (Callobatrachus sanyanensis, Liaobatrachus grabaui, Mesophryne beipiaoensis) and six urodeles (Laccotriton subsolanus, Liaoxitriton zhongjiani, Jeholotriton paradoxus, Sinerpeton fengshanensis,Chunerpeton tianyiensis, Liaoxitriton daohugouensis) are reported from the late Mesozoic tuff-interbedded lacustrine deposits (mostly of the Jehol Group) in northeastern China. They document the first discovery of Chinese Mesozoic lissamphibians, and their old geological age, superb preservation condition, and large taxonomic diversity are unique compared with other findings worldwide. The anurans occupy a higher evolutionary position than typical Jurassic taxa,supporting a post-Late Jurassic age of the fossil horizons. The urodeles all have unicapitate ribs, suggesting an evolutionary grade at the cryptobranchoid level, and are advanced in osteological features over non-urodeles from the Middle and Upper Jurassic in England and Central Asia. Some urodeles (Jeholotriton and Chunerpeton) exhibit neotenic features, representing the earliest occurrence among such findings. Six fossil horizons are recognized for the known Chinese Mesozoic anurans and urodeles: the Daohugou fossil bed, the Dabeigou Formation, the Lujiatun Bed,Jianshangou Bed and Dawangzhangzi Bed of the Yixian Formation, and the Jiufotang Formation. As implied from the osteological and phylogenetical studies, the geological age of these anurans and urodeles is the Early Cretaceous.关键词
anurans/urodeles/taxonomy/stratigraphy/Late Mesozoic/ChinaKey words
anurans/urodeles/taxonomy/stratigraphy/Late Mesozoic/China分类
天文与地球科学引用本文复制引用
WANG Yuan..Taxonomy and Stratigraphy of Late Mesozoic Anurans and Urodeles from China[J].地质学报（英文版）,2004,78(6):1169-1178,10.基金项目
This research was supported by grants from the National Natural Science Foundation of China (No. 40302008), the Ministry of Science and Technology of China (No. 2000077700), and the National Science Foundation of the US. （No. 40302008）
