Tropeognathinae

Tropeognathines Temporal range: Albian–Turonian PreꞒ Ꞓ O S D C P T J K Pg N
Reconstructed skeleton of Tropeognathus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Order:	†Pterosauria
Suborder:	†Pterodactyloidea
Clade:	†Anhangueria
Family:	†Anhangueridae
Subfamily:	†Tropeognathinae Holgado & Pêgas, 2020
Type genus
†Tropeognathus Wellnhofer, 1987
Genera[1]
†Ornithocheirus? †Tropeognathini †Akharhynchus †Amblydectes †Siroccopteryx †Tropeognathus †Mythungini †Ferrodraco †Haliskia? †Mythunga †Thapunngaka

Tropeognathinae is an extinct subfamily of anhanguerid pterosaurs. Tropeognathine fossils have been found in Cretaceous deposits of Australia, Brazil, and Morocco.^[2]

Tropeognathinae is defined as "the most inclusive clade containing Tropeognathus mesembrinus but not Coloborhynchus clavirostris or Anhanguera blittersdorffi." All tropeognathines have relatively short teeth, with the height of the crown under 3 times the diameter of the tooth, as well as premaxillary crests that reach the tip of the rostrum.^[2] Mythungini, a stem-based clade of Australian tropeognathines, is defined as "the group consisting of Mythunga camara and all species more closely related to Mythunga than to Tropeognathus mesembrinus, Amblydectes crassidens or Siroccopteryx moroccensis." A synapomorphy for mythungins is the possession of raised rims or collars around the tooth sockets.^[1]

The mythungin tropeognathine Thapunngaka is the largest flying reptile currently known from Australia.^[1]

Classification

The cladogram below has been reproduced from Richards et al., (2023). It shows the phylogenetic relationships of tropeognathines within the Anhangueridae.^[1]

Anhangueridae	Coloborhynchinae Anhanguerinae Tropeognathinae Tropeognathini Siroccopteryx Tropeognathus Amblydectes Mythungini Ferrodraco Thapunngaka Mythunga

References

1. Richards, Timothy; Stumkat, Paul; Salisbury, Steven (6 October 2023). "A second specimen of the pterosaur Thapunngaka shawi from the Lower Cretaceous (upper Albian) Toolebuc Formation of North West Queensland, Australia". Cretaceous Research. 154. doi:10.1016/j.cretres.2023.105740.
2. Holgado, Borja; Pêgas, Rodrigo (2020). "A taxonomic and phylogenetic review of the anhanguerid pterosaur group Coloborhynchinae and the new clade Tropeognathinae". Acta Palaeontologica Polonica. 65. doi:10.4202/app.00751.2020.