Abstract Flying squirrels (Rodentia, Sciuridae, Sciurinae, Pteromyini) have a long and
complex history in North America. First recorded during the Late Eocene, they vanished …

Florida has the best late Blancan (early Pleistocene, 2.6–1.6 Ma) record of Tapirus in North
America. The genus is currently known from 25 fossil localities of Blancan age, ranging …

Dietary variation within species has important ecological and evolutionary implications.
While theoreticians have debated the consequences of trait variance (including dietary …

The Great American Biotic Interchange (GABI) was a Late Cenozoic exchange of biotas
between North America and South America. The first major pulse of the GABI in North …

The previously poorly known “Tapiravus” polkensis Olsen, 1960 (Mammalia, Perissodactyla,
Tapiridae) is now known from abundant, well preserved specimens from both the type area …

The wolverine (Gulo gulo) is the largest living terrestrial member of the Mustelidae; a
versatile predator formerly distributed throughout boreal regions of North America and …

We describe Titanotaria orangensis (gen. et. sp. nov.), a new species of walrus (odobenid)
from the upper Miocene Oso Member of the Capistrano Formation of Orange County …

Introduction living between the Early Pliocene and Late Pleistocene, to a very inclusive set
that stretches back to the latest Middle Miocene (Berta, 1987; Antón and Galobart, 1999; …

South-central Florida's latest Hemphillian Palmetto Fauna includes two machairodontine
felids, the lion-sized Machairodus coloradensis and a smaller, jaguar-sized species, initially …

Mammals have high dispersal ability, and many lineages can spread across the continents
when a landbridge appears. Here, we summarize the dispersal of mammals between the …