Temporal range: Late Oligocene-Late Pleistocene (Deseadan-Lujanian) ~29–0.009 Ma
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Scelidotherium leptocephalum in Paris
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
Pilosa
Superfamily:
Mylodontoidea
Family:
†Scelidotheriidae Ameghino 1889
Genera
†Analcitherium
†Catonyx
†Chubutherium
†Nematherium
†Neonematherium
†Proscelidodon
†Scelidodon
†Scelidotheridium
†Scelidotheriops
†Scelidotherium
†Sibyllotherium
†Valgipes
Scelidotheriidae is a family of extinct ground sloths within the order Pilosa, suborder Folivora and superfamily Mylodontoidea, related to the other extinct mylodontoid family, Mylodontidae, as well as to the living two-toed sloth family Choloepodidae. The only other extant family of the suborder Folivora is the distantly related Bradypodidae. Erected as the family Scelidotheriidae by Ameghino in 1889, the taxon was demoted to a subfamily of Mylodontidae by Gaudin in 1995.[1][2] However, recent collagen sequence data indicates the group is less closely related to Mylodon and Lestodon than Choloepus is, and thus it has been elevated back to full family status by Presslee et al. (2019).[3]
^PaleoBiology Database: Scelidotheriinae, basic info
^Gaudin, T. J. (1995-09-14). "The Ear Region of Edentates and the Phylogeny of the Tardigrada (Mammalia, Xenarthra)". Journal of Vertebrate Paleontology. 15 (3): 672–705. Bibcode:1995JVPal..15..672G. doi:10.1080/02724634.1995.10011255. JSTOR 4523658.
^Presslee, S.; Slater, G. J.; Pujos, F.; Forasiepi, A. M.; Fischer, R.; Molloy, K.; et al. (2019). "Palaeoproteomics resolves sloth relationships" (PDF). Nature Ecology & Evolution. 3 (7): 1121–1130. Bibcode:2019NatEE...3.1121P. doi:10.1038/s41559-019-0909-z. PMID 31171860. S2CID 174813630. Archived (PDF) from the original on 12 September 2020. Retrieved 18 September 2020.
Scelidotheriidae is a family of extinct ground sloths within the order Pilosa, suborder Folivora and superfamily Mylodontoidea, related to the other extinct...
claws. In many ground sloth families (Megatheriidae, Mylodontidae, Scelidotheriidae and Nothrotheriidae), the hindfoot is inwardly rotated, meaning sole...
is most closely related to another family of extinct ground sloths, Scelidotheriidae, as well as to the extant arboreal two-toed sloths, family Choloepodidae;...
for about 23 million years and went extinct about 11,000 years ago. †Scelidotheriidae: collagen sequence data indicates this group is more distant from Mylodon...
Scelidotherium is an extinct genus of ground sloth of the family Scelidotheriidae, endemic to South America during the Late Pleistocene epoch. It lived...
Catonyx is an extinct genus of ground sloth of the family Scelidotheriidae, endemic to South America during the Pliocene and Pleistocene epochs. It lived...
Mylodontoidea, it is either considered to be a member of Mylodontidae or Scelidotheriidae. It lived during the Middle Miocene epoch (Santacrucian). Fossils have...
†Rathymotheriidae Infraorder †Mylodonta Superfamily †Mylodontoidea Family †Scelidotheriidae Family †Mylodontidae Superfamily †Orophodontoidea Family †Orophodontidae...
Proscelidodon is an extinct genus of ground sloths in the family Scelidotheriidae. It lived during the Miocene and Pliocene of what is now Argentina and...
considered to be a distinct genus. Analcitherium is a member of the Scelidotheriidae, a group of terrestrial sloths known from the Oligocene and Pleistocene...
the Río Frías Formation of Chile. Neonematherium is a member of the Scelidotheriidae, a family of ground sloths known from the Oligocene, Miocene Pliocene...
modern two-toed sloths of the family Choloepodidae and the extinct Scelidotheriidae, in the superfamily Mylodontoidea, with the former family being their...
close relative of Catonyx and Proscelidodon. The taxonomic history of Scelidotheriidae in Brazil is convoluted, and only one species of Valgipes, V. bucklandi...
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