Ctenochasmatids Temporal range: Late Jurassic -Early Cretaceous152–105 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Ctenochasma elegans specimen from Solnhofen
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	†Pterosauria
Suborder:	†Pterodactyloidea
Clade:	†Ctenochasmatoidea
Family:	†Ctenochasmatidae Nopsca, 1928[1]
Type species
†Ctenochasma roemeri Meyer, 1852
Subgroups
†Ardeadactylus? †Aurorazhdarcho? †Balaenognathus †Cathayopterus †Cratonopterus †Kepodactylus †Liaodactylus †Otogopterus †Petrodactyle? †Pterofiltrus †Ctenochasmatinae †Ctenochasma †Pterodaustrini †Bakiribu †Beipiaopterus? †Eosipterus? †Gegepterus? †Pterodaustro †Gnathosaurinae †Garudapterus †Gnathosaurus †Lusognathus †Plataleorhynchus †Spathagnathus †Tacuadactylus †Moganopterinae †Elanodactylus? †Feilongus †Forfexopterus? †Gladocephaloideus? †Huanhepterus? †Moganopterus

Ctenochasmatidae is a group ofpterosaurs within the suborderPterodactyloidea. They are characterized by their distinctive teeth, which are thought to have been used forfilter-feeding. Ctenochasmatids lived from theLate Jurassic to theEarly Cretaceous periods.

The earliest known ctenochasmatid remains date to the Late JurassicKimmeridgian age. Previously, a fossil jaw recovered from the Middle JurassicStonesfield Slate formation in theUnited Kingdom, was considered the oldest known. This specimen supposedly represented a member of the family Ctenochasmatidae,^[2] though further examination suggested it actually belonged to ateleosaurid stem-crocodilian instead of a pterosaur.^[3]

Below iscladogram following a topology recovered by Brian Andres, using the most recent iteration of his data set (Andres, 2021). Anders found that three subfamilies fall within the Ctenochasmatidae: Ctenochasmatinae, Gnathosaurinae and Moganopterinae, while also including several basal genera.^[4]

• Archaeopterodactyloidea
• Reptile families
• Late Jurassic reptiles
• Early Cretaceous reptiles

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