Arctotraversodontinae

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]

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

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.