Ctenochasmatidae


Ctenochasmatidae is a group of pterosaurs within the suborder Pterodactyloidea.
The earliest known ctenochasmatid remains date to the Late Jurassic Kimmeridgian age. Previously, a fossil jaw recovered from the Middle Jurassic Stonesfield Slate formation in the United Kingdom, was considered the oldest known. This specimen supposedly represented a member of the family Ctenochasmatidae, though further examination suggested it actually belonged to a teleosaurid stem-crocodilian instead of a pterosaur.

Classification

following a topology by Andres, Clark & Xu, 2014.
In 2018, Longrich, Martill, and Andres recovered a significantly different set of relationships for early pterodactyloids in their own analysis, as shown below using the earliest available definitions for each clade name.