Albanerpetontid amphibian (Lissamphibia: Albanerpetontidae) from the Early Miocene of the locality Merkur-North (north-west of the Czech Republic): data and a description of a new material

摘要

This paper deals with the first description of an albanerpetontid amphibian from the Early Miocene locality Merkur–North. The material comes from grey calcareous marls at the base of the so-called “Main Brown Coal Seam”. The marls are interpreted as reworked volcanic ash (Most Formation). The genus Albanerpeton was already known from this locality, but the material has never been described or illustrated. The new material of dentaries extends our knowledge about the state of the Merkur–North population. The extinct clade of Albanerpetontidae represents primarily Laurasian lissamphibians known from the Middle Jurassic to Pliocene periods. The Upper Oligocene to Lower Miocene albanerpetontids of central Europe belong to the species A. inexpectatum. The material described here allocated a big similarity close to this species.