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Why did some mammals develop tusks?（图）
二齿兽 哺乳动物 脊椎动物
2023/6/21
Awide array of animals have tusks, including elephants, walruses, warthogs, hippos, and even the much smaller hyrax, which look like guinea pigs and are about the size of domestic cats. The other thin...
Fossils support new hypothesis for origin of hoofed mammals（图）
Fossils support new hypothesis origin hoofed mammals
2020/12/11
New research published in the Journal of Vertebrate Paleontology describes a fossil family that illuminates the origin of perissodactyls -- the group of mammals that includes horses, rhinos ...
NEW MULTITUBERCULATE MAMMALS FROM THE LOWER CRETACEOUS (SHAHAI AND FUXIN FORMATIONS), NORTHEASTERN CHINA
LOWER CRETACEOUS MULTITUBERCULATE
2014/3/26
Two eobaatarid multituberculates, Heishanobaatar triangulusgen. et sp. nov. and Eobaataridae gen. et sp.
indet., and an ?albionbaatarid multituberculate, Kielanobaatar badaohaoensis gen. et sp. nov.,...