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).