Mylodontini, Saint-Andre, 1994

Casali, Daniel M, Boscaini, Alberto, Gaudin, Timothy J & Perini, Fernando A, 2022, Reassessing the phylogeny and divergence times of sloths (Mammalia: Pilosa: Folivora), exploring alternative morphological partitioning and dating models, Zoological Journal of the Linnean Society 196 (4), pp. 1505-1551 : 1525

Mylodontini

PP = 100, age = 8.19 Mya (6.54–9.95).

This clade is composed of ten genera, with the following arrangement in all analyses using H models: ( Pleurolestodon , (( Simomylodon , Glossotheridium ), ( Ocnotherium , ( Glossotherium , ( Paramylodon , ( Oreomylodon , ( Mylodonopsis , ( Archaeomylodon , Mylodon )))))))). For UN and A models not accounting for ACRV (_e), and MP trees, several alternative arrangements can be observed, regarding the positions of Pleurolestodon , Ocnotherium , Oreomylodon , Glossotherium and Paramylodon , whereas the clades ( Simomylodon , Glossotheridium ) and ( Mylodonopsis , ( Archaeomylodon , Mylodon )) are stable.

Mylodontini was supported by 11 synapomorphies (seven for both methods and four exclusively for BI): Cf1 smaller than the smallest molariform; cf1 smaller than the smallest molariform (BI); ovate Cf1 crosssection; presence of internal ridge running obliquely or vertically from ventral edge of ascending ramus, near the base of the angle, towards the last tooth; length of coronoid process greater than its height (BI); absence of a mandibular fossa posterior to cf1 (BI); temporal lines laterally situated, do not approximate midline of skull roof; posterior segments of temporal lines run anterior to but closely parallel the nuchal crest; medial palatal processes of maxilla anterior to lateral process; presence of osteoderms; and a slightly obtuse (around 120°) angle formed by discoid and odontoid facets of astragalus, in distal view (BI).