Batrachognathus

Batrachognathus is an extinct genus of anurognathid pterosaur from the Late Jurassic (Oxfordian to Kimmeridgian) Karabastau Formation of the central Asian republic of Kazakhstan.

The genus is based on holotype PIN 52-2, an incomplete and disarticulated skeleton consisting of skull fragments, jaws, vertebrae, ribs, legs and wing bones.

Christopher Bennett pointed out the name Asiaticognathidae was inappropriate, as the clade lacked an Asiaticognathus, and in 2009 Kellner proposed Batrachognathinae as a replacement.

In 2021, a phylogenetic analysis conducted by Xuefang Wei and colleagues recovered Batrachognathus within the subfamily Batrachognathinae, sister taxon to the genus Sinomacrops.

[6] Below is a cladogram representing their phylogenetic analysis: "Dimorphodon" weintraubi Sinomacrops bondei Batrachognathus volans Dendrorhynchoides curvidentatus Luopterus mutoudengensis Jeholopterus ningchengensis Anurognathus ammoni Vesperopterylus lamadongensis

Variation in anurognathid jaw shape, notice Batrachognathus (A)