Largest north american rodent Beaver (12-38 kg) Most ... Aplodontidae: Monotypic mountain beaver (Aplodontia rufa) ... Castoridae (beaver): 1 genus; 2 species ...
Unit Four Evolutionary History of Lineages and Biotas Biotic Interchanges can repeat through time Fig. 10.33 Pleistocene Pliocene Late Miocene Biotic Interchange ...
Paramys, a squirrel-like ancestral genus from the Paleocene. Therapsid ... Sciuromorphous Primitive, squirrel-like masseter lateralis originates on ...
Use lizards as a model system because they show wide range of variation in both ... Comstock Publishing Associates, Ithaca, New York. xii 276 pp. Djawdan, M. 1993. ...
Endemism taxa occuring in one geographic place and nowhere else Cosmopolitan taxa that widely distributed throughout the world Disjunction closely related ...
... bouldery areas, and rocky slopes from Utah to T-P Tx, s to Sonora and Chihuahua ... soil with spare vegetation from SE New Mexico and TX S to Chihuahua, Mexico. ...
Se alimentan de insectos, lombrices, vegetaci n, hongos y semillas ... Habitan desiertos, bosque seco, bosque premontano, montano y bosque h medo tropical. ...
Skulls. A. inter: Aud bul large (1 length molar row), 1st premolar (P3) minute or absent ... Skulls. N. cin: M1 w/ deep anterio-internal angle, M3 with ...
food, burrows, caring for queen and her young) grasshopper ... Arvicolinae: North America. voles. Mircotus: lots of species. Phenacomys: heather and tree voles ...