After McKenna & Bell, 1997, and Alroy, 2002
†Psittacotherium Cope, 1882 non †Hemicanus Wortman, 1897 †Psittacotherium multifragum Cope, 1882 †Hemiganus vultuosus Cope, 1882 = † Psittacotherium multifragum (Cope); Wortman, 1897, Matthew, 1937, Schoch, 1981a, and Schoch, 1986 †Psittacotherium aspasiae Cope, 1882; Matthew, 1937, Wortman, 1897, Schoch, 1981a, and Schoch, 1986 = †Psittacotherium multifragum Cope; Lucas et al., 1998 †Psittacotherium megalodus Cope; 1887 = †Psittacotherium multifragum Cope; Wortman, 1897, Schoch, 1981a, and Schoch, 1986
Reference(s):
- Alroy, J., 2002: North American fossil mammal systematics database.
–iNet: North American fossil mammal systematics database: http://www.nceas.ucsb.edu/~alroy/nafmsd.html - McKenna, M. C. & Bell, S. K., (eds.) 1997: Classification of mammals – above the species level.
–Columbia University Press, New York, 1997, xii-631