Mammalia - Theriamorpha - Herpetotheriidae

Full reference: Z. Johanson. 1996. New marsupial from the Fort Union Formation, Swain Quarry, Wyoming. Journal of Paleontology 70(6):1023-1031

Parent taxon: Herpetotheriidae according to J. A. Case et al. 2004

See also Johanson 1996, McKenna and Bell 1997 and Williamson et al. 2012

Sister taxa: Amphiperatherium, Asiadidelphis, Copedelphys, Galatiadelphys, Golerdelphys, Herpetotherium, Nortedelphys, Peratherium, Rumiodon, Thylacodon

Subtaxa: Swaindelphys cifellii Swaindelphys encinensis Swaindelphys johansoni Swaindelphys johansoni

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Type: Swaindelphys cifellii

Ecology: ground dwelling omnivore

Distribution: found only at Swain Quarry (Paleocene of Wyoming)

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Specimen images are retrieved through the ePANDDA API.