Search the Dictionary

geologists, and alluding to the approximation in its life to that of the present era; as, Eocene deposits. -- n.

More recent than the Eocene, that is, including both the Miocene and Pliocene divisions of the Tertiary.

A period in the American eocene, the lowest in the tertiary age except the lignitic.

A genus of extinct mammals from the eocene tertiary of Europe and America. Its species varied in size between the tapir and rhinoceros, and were allied to those animals, but had short, plantigrade, five-toed feet, like the elephant.

ertaining to, or designating, the period of time following the Jurassic and preceding the Eocene.

An extinct eocene bird from New Mexico, larger than the ostrich.

A genus of large extinct Eocene mammals from Wyoming; -- called also Uintatherium. See Illustration in Appendix.

ones and schists overlying the true nummulitic formation in the Alps, and included in the Eocene Tertiary.

A group of beds of the same age or period; as, the Eocene formation.

A genus of large eocene birds from the Paris basin.

An extinct Eocene bird having the jaws strongly serrated, or dentated, but destitute of true teeth. It was found near London.

ning to, or designating, certain strata which occupy an intermediate position between the Eocene and Miocene periods. -- n.

A genus of American Eocene mammals allied to the horse, but having four toes in front and three behind.

he palmy days of Italian art. J. S. Harford. Plastic clay (Geol.), one of the beds of the Eocene period; -- so called because used in making pottery. Lyell. -- Plastic element (Physiol.), one that bears within the germs of a higher form. -- Plastic exudation (Med.), an exudation thrown out upon a wounded surface and…

A hog. Puerco beds (Geol.), a name given to certain strata belonging to the earliest Eocene. They are developed in Northwestern New Mexico, along the Rio Puerco, and are characterized by their mammalian remains.

An extinct group of Mammalia found fossil in the Eocene formation. The species are related to the carnivores, ungulates, and rodents. Called also Tillodonta.

An extinct genus of large Eocene ungulates allied to Dinoceras. This name is sometimes used for nearly all the known species of the group. See Dinoceras.

A genus of extinct Eocene whales, remains of which have been found in the Gulf States. The species had very long and slender bodies and broad serrated teeth. See Phocodontia.