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A morphological tree of Megalonychidae, based on the work of Stinnesbeck and colleagues (2021). [15] ( Note that this tree does not conform to genetic studies, as it includes the Caribbean sloths Neocnus, Parocnus Megalocnus and Arcatocnus which have been placed in the separate family Megalocnidae, well as the two toed sloths (Choloepus), which are placed in the clade Mylodontoidea).
Eucholoeops was a megalonychid, a family within the order Folivora which contains all of sloths. Megalonychids existed from the Deseadan SALMA (29–21 mya) to the Rancholabrean NALMA (240,000 BCE to 11,000 BCE), the last surviving genus being Megalonyx itself from North America. [9]
Megalonyx (Greek, "great-claw") is an extinct genus of ground sloths of the family Megalonychidae, native to North America.It evolved during the Pliocene Epoch and became extinct at the end of the Late Pleistocene, living from ~5 million to ~13,000 years ago. [3]
Life restoration of the related ground sloth Megalonyx.. Ortotherium was a megalonychid sloth, a family within the order Folivora which contains all of sloths. Megalonychids existed from the Deseadan SALMA (29–21 mya) to the Rancholabrean NALMA (240,000 BCE to 11,000 BCE), the last surviving genus being Megalonyx itself from North America. [16]
Xibalbaonyx is an extinct genus of megalonychid ground sloth known from the Late Pleistocene of Mexico. Three species are known: X. oviceps and X. exiniferis from the Yucatan Peninsula and X. microcaninus from Jalisco. The genus is named after Xibalba, the underworld in Maya mythology.
Like all ground sloths, Ahytherium was equipped with a robust body and legs equipped with powerful claws. Ahytherium was similar to other ground sloths such as Megalonyx but possessed some features that clearly distinguished it: the head, for example, was extremely short and tall, and possessed dorsally swollen frontal bones. The zygomatic ...
Nohochichak is an extinct genus of megalonychid ground sloth from the Late Pleistocene (Rancholabrean) of the Yucatan Peninsula in Mexico. Discovery and taxonomy [ edit ]
Mesopotamocnus is an extinct genus of megalonychid ground sloth that lived during the Late Miocene in what is now Argentina. Fossils have been found in the Ituzaingó Formation of Argentina. Etymology