Figure 1. Original block containing new partial, semi-articulated foot of Notharctus tenebrosus AMNH 143612.

Shown here as when found in collections at American Museum of Natural History. Two views are rotated 90 degrees around a vertical axis with respect to one another. Inset on left labels some of the bones visible on the surface, indicating potential for more below. Abbreviations: Ent, entocuneiform; Mt, metatarsal; pp, proximal phalanx. Numbers refer to digit rays.