AMNH 143612/143640 preserves a semi-articulated Notharctus foot in which AMNH 143612-03 can be assigned to digit two and exhibits the cited study’s comparative grooming-phalanx morphology.
claim:event:notharctus-grooming-claw-footNotharctus digit-two grooming phalanx
A semi-articulated foot and associated jaw permit ray-level identification of phalanges and a bounded comparative diagnosis of a digit-two grooming claw.
Represented range50–48.5 Ma
RegionsGrizzly Buttes, Bridger B, Bridger Formation, Wyoming, USA
CladesNotharctus · Adapiformes · Primates
Claim ledger
References
- Evidence for a Grooming Claw in a North American Adapiform Primate: Implications for Anthropoid OriginsMaiolino, S.A.; Boyer, D.M.; Bloch, J.I.; Gilbert, C.C.; Groenke, J. · 2012 · DOI 10.1371/journal.pone.0029135