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Arctotraversodontinae
Temporal range: Late Triassic
Scientific classification Edit this 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. ^ a b c 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.


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