Panameriungulata Muizon and Cifelli, 2000

Gelfo, Javier N. & Sigé, Bernard, 2011, A new didolodontid mammal from the late Paleocene-earliest Eocene of Laguna Umayo, Peru, Acta Palaeontologica Polonica 56 (4), pp. 665-678 : 666

Order Panameriungulata Muizon and Cifelli, 2000 Family Didolodontidae Scott, 1913 Genus Umayodus nov.

Type and included species: Umayodus raimondi sp. nov.; by monotypy, see below.

Etymology: From Umayo, for the Laguna Umayo locality; and the Greek odous, tooth; commonly used for Didolodontidae names.

Diagnosis.—In contrast to the rest of didolodontids, well developed metastylid, ectostylid, and twinned hypoconulid. Medium sized didolodontid, larger than Raulvaccia peligrensis and smaller than Lamegoia conodonta . Trigonid higher and wider than the talonid. The m3 with small but well−developed paraconid placed mesiolabially with respect to the metaconid. Metastylid and ectostylid present. Entoconid subequal in size to hypoconulid, cristid obliqua curved and not contacting the distal wall of trigonid.