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Later than, or subsequent to, the Tertiary; Post-tertiary; as, the Quaternary age, or Age of man.

st recent division of geological time, including the tertiary, or Age of mammals, and the Quaternary, or Age of man. [Written also cænozoic, cainozoic, kainozoic.] See Geology.

A subdivision of the Quaternary age immediately following the Glacial period; -- so named from beds near Lake Champlain.

An extinct Quaternary marsupial from Australia, about as large as the hippopotamus; -- so named because of its two large front teeth. See Illustration in Appendix.

lated to the European stag. See Moose, and Wapiti. Irish elk (Paleon.), a large, extinct, Quaternary deer (Cervus giganteus) with widely spreading antlers. Its remains have been found beneath the peat of swamps in Ireland and England. See Illustration in Appendix; also Illustration of Antler. -- Cape elk (Zoöl.), the…

An extinct South American quaternary mammal, allied to the armadillos. It was as large as an ox, was covered with tessellated scales, and had fluted teeth. Owen.

A quaternary deposit, usually consisting of a fine yellowish earth, on the banks of the Rhine and other large rivers.

r romains occur in nearly all parts of the world in deposits ranging from Miocene to late Quaternary time.

An extinct quaternary mammal, of great size, allied to the sloth.

An extinct gigantic quaternary mammal, allied to the ant-eaters and sloths. Its remains are found in South America.

g to the period immediately following the Pliocene; Pleistocene. Also used as a noun. See Quaternary.

Following, or more recent than, the Tertiary; Quaternary.

granite, gneiss, etc.; -- called also primitive rocks. The terms Secondary, Tertiary, and Quaternary rocks have also been used in like manner, but of these the last two only are now in use. -- Primary salt (Chem.), a salt derived from a polybasic acid in which only one acid hydrogen atom has been replaced by a base or…

cond, third, fourth, fifth, or a higher degree. These are further called binary, ternary, quaternary, etc., according as they contain two, three, four, or more variables; thus, the quantic is a binary cubic.

Composed of, or arranged in, sets of four; quaternary; as, quaternate leaves.

areous tufa, in part crystalline, occurring on a large scale as a shore deposit about the Quaternary lake basins of Nevada.