アウバネルペトン科両生類の分類指標としての前頭骨

概要

論文の詳細を見る
Albanerpetontids are an extinct group of amphibians known from deposits of Middle Jurassic to Miocene age from Euramerica and central Asia. Recent analyses have suggested they are most probably a sister group of frogs and salamanders. Throughout their long history they retain a very conservative body form and are difficult to distinguish from isolated specimens. However, they can be easily diagnosed as albanerpetontids from a collection of unique character states which includes an interdigitating mandibular symphysis; polygonal sculpturing on dermal roofing bones-related to its dermal ossification pattern-; tricuspate, non-pedicellate teeth; and a unique atlas-axis complex. A comprehensive comparison of material from different European localities has revealed that the shape of the fused frontal may be a good indicator of genus and even species.
国立科学博物館の論文