Mammalia - Rodentia - Sciuridae
Full reference: W. D. Matthew. 1903. The fauna of the Titanotherium Beds at Pipestone Springs, Montana. Bulletin of the American Museum of Natural History 19(6):197-226
Parent taxon: Sciurus according to W. D. Matthew 1903
See also Alroy 2002, Johnson 1966, Matthew 1910, McKenna and Bell 1997, Peterson 1919, Wang 2008, Wang and Wang 1991 and Wood 1937
Sister taxa: Sciurus aberti, Sciurus alleni, Sciurus arizonensis, Sciurus calycinus, Sciurus carolinensis, Sciurus flavus, Sciurus giganteus, Sciurus griseus, Sciurus niger, Sciurus olsoni, Sciurus panolius, Sciurus prevostii, Sciurus siderolithicus, Sciurus spectabilis, Sciurus venturus, Sciurus vittatus, Sciurus vortmani, Sciurus vulgaris
Subtaxa: Sciurus (Prosciurus) vetustus
Ecology: arboreal granivore-frugivore
Distribution: there are no occurrences of Sciurus (Prosciurus) in the database