Antarctodon

Antarctodon Temporal range: Early Eocene-Late Eocene (Itaboraian-Divisaderan) ~48.6–37.2 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Astrapotheria
Genus:	†Antarctodon M. Bond et al. 2011
Species:	†A. sobrali
Binomial name
†Antarctodon sobrali M. Bond et al. 2011

Antarctodon is an extinct genus of mammals from the Early Eocene (late Ypresian age). It is a basal astrapotherian which lived in what is now Seymour Island, Antarctic Peninsula, at that moment still connected to South America where most of the astrapotherians were found. The holotype and only specimen MLP 08-XI-30-1, an isolated right p4 or m1, was found in the Telm 5 Member of the La Meseta Formation in West Antarctica.[1] It was first named by Mariano Bond, Alejandro Kramarz, Ross D. E. MacPhee and Marcelo Reguero in 2011 and the type species is Antarctodon sobrali.[2]

Phylogeny

Cladogram after M. Bond et al. 2011:[2]

Astrapotheria	Eoastrapostylops Trigonostylops Tetragonostylops Antarctodon Albertogaudrya Scaglia Astrapotheriidae Astraponotus Maddenia Parastrapotherium Astrapotherium Granastrapotherium

References

1. Antarctodon at Fossilworks.org
2. Bond et al. 2011

Bibliography

• Bond, Mariano; Kramarz, Alejandro; MacPhee, Ross D. E.; Reguero, Marcelo (2011). "A new astrapothere (Mammalia, Meridiungulata) from La Meseta Formation, Seymour (Marambio) Island, and a reassessment of previous records of Antarctic astrapotheres" (PDF). American Museum Novitates (3718): 16. doi:10.1206/3718.2. hdl:11336/98139. S2CID 58908785.