Peligrotherium

Peligrotherium is an extinct dryolestoid, and the sole member of the family Peligrotheriidae, from the Paleocene of Patagonia, originally interpreted as a stem-ungulate (though it did co-exist with early meridiungulates). Its remains have been found in the Salamanca Formation.[1] It was a dog-sized mammal, among the largest of all dryolestoids, and closely related to mesungulatids, another lineage of large sized herbivorous dryolestoids.[2] A recent phylogenetic study finds it to be the sister taxon to Reigitherium.[3]

Peligrotherium
Temporal range: Early Paleocene (Peligran)
~61.7–58.7 Ma
↓
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Dryolestida
Clade: †Meridiolestida
Clade: †Mesungulatoidea
Family: †Peligrotheriidae
Bonaparte et al., 1993
Genus: †Peligrotherium
Bonaparte et al., 1993
Species:
†P. tropicalis
Binomial name
†Peligrotherium tropicalis
Bonaparte et al., 1993

References
  1. Peligrotherium at Fossilworks.org
  2. Guillermo Rougier, Laura Chornogubsky, Silvio Casadío, GIALLOMBARDO, Mammals from the Allen Formation, Late Cretaceous, Argentina, Cretaceous Research 2009(1):223-238 · February 2009 Impact Factor: 1.90 · DOI: 10.1016/j.cretres.2008.07.006
  3. Tony Harper; Ana Parras; Guillermo W. Rougier (2018). "Reigitherium (Meridiolestida, Mesungulatoidea) an enigmatic Late Cretaceous mammal from Patagonia, Argentina: morphology, affinities, and dental evolution". Journal of Mammalian Evolution. in press. doi:10.1007/s10914-018-9437-x.


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