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
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.


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