Five groups of Eurasian bears are recognized: black, etruscan, brown, cave and white bears. Black bears are believed to be ancestral to the othe groups. Etruscan bears form a specialized line that became extinct without descent. Brown bears are Asian in origin, they reached Eureope at the end of the Early Pleitocene, replacing the Etruscan bears, and gave rise, as a side branche, to the cave bear line. White bears apparently originated from north Asian brown bear populations in very recent times.
The phylogeny of the genus Ursus in Eurasia / P. Mazza; M. Rustioni. - STAMPA. - (1992), pp. 000-000. (Intervento presentato al convegno 40th Symposium on Vertebrate Paleontology and Comparative Anatomy tenutosi a Bristol nel 15 al 19 settembre, 1992).
The phylogeny of the genus Ursus in Eurasia.
MAZZA, PAUL;
1992
Abstract
Five groups of Eurasian bears are recognized: black, etruscan, brown, cave and white bears. Black bears are believed to be ancestral to the othe groups. Etruscan bears form a specialized line that became extinct without descent. Brown bears are Asian in origin, they reached Eureope at the end of the Early Pleitocene, replacing the Etruscan bears, and gave rise, as a side branche, to the cave bear line. White bears apparently originated from north Asian brown bear populations in very recent times.
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
