Reassessing the phylogeny and divergence times of sloths (Mammalia: Pilosa: Folivora), exploring alternative morphological partitioning and dating models Author Casali, Daniel M Author Boscaini, Alberto Author Gaudin, Timothy J Author Perini, Fernando A text Zoological Journal of the Linnean Society 2022 2022-12-01 196 4 1505 1551 https://academic.oup.com/zoolinnean/article/196/4/1505/6617197 journal article 10.1093/zoolinnean/zlac041 0024-4082 7381236 Thalassocnini PP = 100, age = 7.67 Mya (5.60–9.67). This clade was recovered in all analyses performed in this study, except, as stated above, in par_IW5, in which Aymaratherium and Thalassocnus are successive sister taxa to Megatheriini. Thalassocnini was supported by five synapomorphies (one for both methods and four exclusively for BI): horizontal ramus of mandible length greater than or equal to two times the depth, but less than three times (BI); straight anterior edge of symphysis, in lateral view (BI); lesser tubercle of humerus less proximally projected than greater tubercle (BI); presence of entepicondylar foramen of humerus; and confluence of sustentacular facet and cuboid surface of calcaneus (BI).