Earth Science, Geologic Time & Fossils

E Region

atmospheric science

Davis, William Morris

American geographer

Basalt

Properties, & Facts

Pliohippus

extinct mammal genus

Electrum

alloy

Trilobite

fossil arthropod

Contrail

Definition & Facts

Perlite

natural glass

Cordaitales

fossil plant order

Echinosphaerites

fossil cystoid genus

Undertow

hydrodynamics

Regolith

geology

Pengelly, William

British educator and geologist

Paraschwagerina

fossil foraminiferan genus

Kieserite

mineral

Rhodochrosite

Location, Properties, & Facts