Pseudoglyptodon

Extinct genus of sloths

Pseudoglyptodon
Temporal range: Middle Eocene-Late Oligocene (Mustersan-Deseadan)
~48–28.4 Ma
PreꞒ
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S
D
C
P
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J
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Pg
N
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Superorder:
Order:
Suborder:
Family:
incertae sedis
Genus:
Pseudoglyptodon

Engelmann 1987
Species
  • P. chilensis
  • P. sallaensis (type)

Pseudoglyptodon is a genus of extinct sloths from South America. The type species is Pseudoglyptodon sallaensis.[1]

Description

Fossils of the genus have been found in the Mustersan Sarmiento Formation of Argentina, in the Tinguirirican (Late Eocene to Early Oligocene) Abanico Formation in the Tinguiririca valley in the Cordillera Principal of the Chilean Andes and the Deseadan Salla Formation of Bolivia.[1] P.chilensis is known from a damaged skull with mandible and some damaged skull fragments. The species can differentiated from others based on a number of features: it is larger, has thinner teeth and less angled cusps on the molars. The discovery of this species lead researchers to the conclusion that the genus Pseudoglyptodon is the closest relative of the sloths depending on how the word "sloth" is defined.[2]

References

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  • Prehistoric mammals portal
  1. ^ a b Pseudoglyptodon at Fossilworks.org
  2. ^ McKenna, M.C., Wyss, A.R. & Flynn, J.J. 2006. Paleogene pseudoglyptodont xenarthrans from central Chile and Argentine Patagonia. American Museum Novitates 3536:1-18.
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Pilosan genera
Vermilingua
Cyclopedidae
Myrmecophagidae
  • Pseudoglyptodon
Megalocnidae
Scelidotheriidae
Mylodontinae
Lestodontini
Mylodontini
Megatherioidea
    • see below↓
Neocnus comes
Megalonychidae
Ortotheriinae
Megalonychinae
  • Analcimorphus
Nothrotheriidae
Nothrotheriinae
Megatheriidae
Planopsinae
Megatheriinae
Megatherium
Taxon identifiers
Pseudoglyptodon chilensis


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