Mammalia - Rodentia - Sciuridae
Parent taxon: Marmotini according to K. M. Helgen et al. 2009
See also Kurten and Anderson 1980, McKenna and Bell 1997, Mercer and Roth 2003 and Wilson and Reeder 1993
Sister taxa: Callospermophilus, Cynomys, Eutamias, Ictidomys, Marmota, Neotamias, Notocitellus, Otospermophilus, Poliocitellus, Spermophilus, Tamias, Urocitellus, Xerospermophilus, Spermophilinus
Subtaxa: Ammospermophilus fossilis Ammospermophilus hanfordi Ammospermophilus interpres Ammospermophilus jeffriesi Ammospermophilus junturensis Ammospermophilus leucurus
Ecology: semifossorial granivore-frugivore
Distribution:
• Quaternary of United States (6: Arizona, New Mexico, Texas, Utah collections)
• Blancan of Mexico (2), United States (1: Washington)
• Hemphillian of United States (1: California)
• Miocene of United States (12: California, Louisiana, Nebraska, Oregon)
Total: 22 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.