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Temporal range: Late Triassic, 228–201 Ma
Holotype specimen of Seazzadactylus
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Order: Pterosauria
Clade: Caviramidae
Baron, 2020
Type species
Caviramus schesaplanensis
Fröbisch & Fröbisch, 2006

Caviramidae is a group of basal pterosaurs. It was erected by paleontologist Matthew G. Baron in 2020. It was defined as the least inclusive clade that includes Arcticodactylus cromptonellus and Caviramus schesaplanensis.[1]

The members of Caviramidae are also considered to belong to either the family Eudimorphodontidae (Arcticodactylus and Carniadactylus), the family Raeticodactylidae (Caviramus and Raeticodactylus), or just basal eopterosaurians (Austriadraco and Seazzadactylus).[2][3][4] However, Baron, the author of Caviramidae, concluded in his analyses that both Eopterosauria and Eudimorphodontidae are not monophyletic groups, therefore he created the family Caviramidae to contain most of the eudimorphodontids and basal eopterosaurians. Additionally, Baron included the clade Austriadraconidae as a subgroup within the Caviramidae to include three genera: Arcticodactylus, Austriadraco, and Seazzadactylus.[1]


  1. ^ a b Baron, Matthew G. (2020). "Testing pterosaur ingroup relationships through broader sampling of avemetatarsalian taxa and characters and a range of phylogenetic analysis techniques". PeerJ. 8: e9604. doi:10.7717/peerj.9604. PMC 7512134. PMID 33005485.
  2. ^ Andres, B.B.; Clark, J.; Xu, X. (2014). "The Earliest Pterodactyloid and the Origin of the Group". Current Biology. 24 (9): 1011–6. doi:10.1016/j.cub.2014.03.030. PMID 24768054.
  3. ^ Upchurch, P.; Andres, B.B.; Butler, R.J.; Barrett, P.M. (2015). "An analysis of pterosaurian biogeography: implications for the evolutionary history and fossil record quality of the first flying vertebrates". Historical Biology. 27 (6): 697–717. doi:10.1080/08912963.2014.939077. PMC 4536946. PMID 26339122.
  4. ^ Longrich, Nicholas R.; Martill, David M.; Andres, Brian; Penny, David (2018). "Late Maastrichtian pterosaurs from North Africa and mass extinction of Pterosauria at the Cretaceous-Paleogene boundary". PLOS Biology. 16 (3): e2001663. doi:10.1371/journal.pbio.2001663. PMC 5849296. PMID 29534059.