Nohochichak

Nohochichak is an extinct genus of megalonychid ground sloth from the Late Pleistocene (Rancholabrean) of the Yucatan Peninsula in Mexico.

Nohochichak Temporal range: Late Pleistocene (Rancholabrean) ~0.036–0.012 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Pilosa
Family:	†Megalonychidae
Genus:	†Nohochichak McDonald et al. 2017
Species:	†N. xibalbahkah
Binomial name
†Nohochichak xibalbahkah McDonald et al. 2017

Discovery and taxonomy

The only known specimens were discovered in the underwater cave system of Hoyo Negro in Quintana Roo, consisting of a partial skull, mandible and some postcranial remains.^[1] It was found to be closer to other Mexican Sloth taxa, like Xibalbaonyx, Meizonyx and Zacatzontli than to the North American Megalonyx.^[1]

Description

In life, it is estimated to have been around 987 kg in weight. It probably lived in a dry landscape.^[2]