Peligrotherium Explained

Peligrotherium is an extinct meridiolestidan mammal 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 non-therian mammals (as well as the largest South American Paleocene mammal^[2]). It is a member of Mesungulatoidea, a clade of herbivorous meridiolestidans with molars that had rounded (bunodont) cusps.^{[3] [4]}

Diet

A biomechanical study finds Peligrotherium to be a herbivore functionally similar to the black rhino.^[5]

External links

• Inist
• Dryolestoids
• Dryolestida

Notes and References

1. https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=204740 Peligrotherium
2. Rougier, Guillermo, Martinelli, Agustin, Forasiepi, Analía M., Mesozoic Mammals from South America and their Forerunners, ISBN 978-3-030-63862-7
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.
4. Harper . Tony . Adkins . Caleb . Rougier . Guillermo . 2022 . Reconstructed masticatory biomechanics of Peligrotherium tropicalis, a non-therian mammal from the Paleocene of Argentina . Acta Palaeontologica Polonica . 67 . 10.4202/app.00912.2021. free .
5. Tony Harper, Caleb F. Adkins, and Guillermo W. Rougier, Reconstructed masticatory biomechanics of Peligrotherium tropicalis, a non-therian mammal from the Paleocene of Argentina, Acta Palaeontologica Polonica 67 (1), 2022: 177-201 doi:https://doi.org/10.4202/app.00912.2021