Excerpt from Comments on North American Fossil Zapodidae (Rodentia: Mammalia) With Reference to Megasminthus, Plesiosminthus, and Schaubeumys The University of
Nearly half of the known species of mammals alive today (more than 1600) are rodents or "gnawing mammals" (Nowak and Paradiso, 1983). The diversity of rodents i
"This book is on the emergence of mammals in Asia, based largely on new fossil finds throughout Asia and cutting-edge biostratigraphic and geochemical methods o