Ctenochasmatidae

Ctenochasmatidae is a family of extinct pterosaurs, a group of flying reptiles that lived during the Mesozoic Era. These pterosaurs are characterized by their distinctive cranial ornamentation and specialized feeding apparatus. They are often grouped within the Pterodactyloidea, a major infraorder of pterosaurs.

Members of Ctenochasmatidae are known for their elongated jaws and numerous, fine teeth. This dental morphology suggests a diet consisting of small prey, likely filtered from water or mud. The teeth were often arranged in a comb-like fashion, hence the family name, which derives from Greek words meaning "comb" and "mouth". Some species possessed elaborate crests on their skulls, which may have served display purposes.

Fossil evidence for Ctenochasmatidae has been found in various locations worldwide, indicating a broad geographic distribution. Their remains are primarily from the Cretaceous period. Notable genera within this family include Pterodaustro, known for its incredibly dense, bristle-like teeth, and Ctenochasma, which also exhibits specialized dentition. The study of Ctenochasmatidae provides valuable insights into the diversity of feeding strategies and ecological niches occupied by pterosaurs during their reign.