| Mesophryne | |
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| Block of M. beipiaoensis fossils, Tianjin Natural History Museum | |
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| Genus: | Mesophryne Gao & Wang, 2001 |
| Species: | M. beipiaoensis |
| Binomial name | |
| Mesophryne beipiaoensis Gao & Wang, 2001 | |
Mesophryne beipiaoensis is an extinct species of frog, from the Cretaceous Yixian Formation of Liaoning (China), and the only species in the genus Mesophryne. It is known from a single specimen collected near Heitizigou, 25 kilometres (16 mi) south of Beipiao, from which the specific epithet derives. The specimen has a snout–vent length of 69 millimetres (2.7 in).[1] While some authors have suggested Mesophryne is a synonym of Liaobatrachus, this has been rejected by other authors. In a phylogenetic analysis it was found to be a crown group frog, which was more derived than Ascaphus and Leiopelma, but less so than alytids and other more advanced frogs.[2]
References
- ↑ Ke-Qin Gao & Yuan Wang (2001). "Mesozoic anurans from Liaoning Province, China, and phylogenetic relationships of archaeobatrachian anuran clades". Journal of Vertebrate Paleontology. 21 (3): 460–476. doi:10.1671/0272-4634(2001)021[0460:MAFLPC]2.0.CO;2.
- ↑ Gao, Ke-Qin; Chen, Jianye (2017-03-14). "A New Crown-Group Frog (Amphibia: Anura) from the Early Cretaceous of Northeastern Inner Mongolia, China". American Museum Novitates. 3876 (3876): 1–39. doi:10.1206/3876.1. ISSN 0003-0082.
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