Arctotraversodontinae

Arctotraversodontinae Temporal range: Late Triassic PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Clade:	Cynodontia
Family:	†Traversodontidae
Subfamily:	†Arctotraversodontinae Hendrickx et al., 2020
Genera
See text

Arctotraversodontinae is a subfamily of Late Triassic cynodonts belonging to the family Traversodontidae. Members of the subfamily include Arctotraversodon, Boreogomphodon and Plinthogomphodon from North America, and Habayia, Maubeugia, Microscalenodon and Rosieria from Europe.[1]

Classification

The subfamily was erected in 2020 by Hendrickx et al., who defined it as all traversodontids more closely related to Arctotraversodon plemmyridon than to Massetognathus pascuali or Gomphodontosuchus brasiliensis.[1] In their cladistic analysis, they found Arctotraversodontinae to be the sister taxon of the subfamily Gomphodontosuchinae. Below is a cladogram from that analysis:[1]

Traversodontidae	BP/1/5538 CGS JSM 100 Etjoia Nanogomphodon Scalenodon angustifrons Traversodontinae Andescynodon Pascualgnathus Mandagomphodon Scalenodon ribeiroae Massetognathinae Gomphodontosuchinae Arctotraversodontinae Boreogomphodon Plinthogomphodon Arctotraversodon Maubeugia Microscalenodon Habayia Rosieria

References

1. Hendrickx, C.; Gaetano, L. C.; Choiniere, J. N.; Mocke, H.; Abdala, F. (2020). "A new traversodontid cynodont with a peculiar postcanine dentition from the Middle/Late Triassic of Namibia and dental evolution in basal gomphodonts". Journal of Systematic Palaeontology. 18 (20): 1669–1706. doi:10.1080/14772019.2020.1804470. S2CID 221838726.