Barylambda (Greek: "heavy" (baros), "lambda" (lambda) in a reference to larger size than that of Pantolambda[2]) is an extinct genus of pantodont mammal from the middle to late Paleocene, well known from several finds in the Wasatchian (NALMA classification) DeBeque Formation of Colorado and the Clarkforkian Wasatch Formation to Tiffanian Fort Union Formation in Wyoming.

[3] The creature likely lived a life similar to that of a modern tapir, browsing on foliage and soft vegetation.

In life, Barylambda probably resembled a large ground sloth, with a small head and long, well-developed tail and bear-like legs.

Barylambda was large even for a pantodont, sheer size probably protecting it from contemporary carnivores.

The generalized appearance of the teeth, the presence of well-developed canines only in males, the grinding wear and lack of shearing blades on the molars, and the animal's heavy build strongly suggest that it was herbivorous.