3D geometric morphometrics of the proximal ulnar articular surface of small mammals and its application in paleobiological inferences of two typotheres (Notoungulata) from the Santa Cruz Formation

MUÑOZ, N. A.; VIZCAÍNO, S.F.; CANDELA, A. M.

Mendoza

Congreso; IV International Palaeontological Congress; 2014

Articular surfaces of limb bones are very informative in morphofunctional studies, providinginformation about the relative movements between adjacent bones. The elbow joint is a particularlycomplex hinge involved in flexo-extension movements between humerus and ulna as well asrotational movements between these two and the radius. The proximal articular surface of the ulnawas examined in living and extinct small mammals in order to assess its usefulness as a proxy for this articulation in functional studies. f a joint.