Earth Science, Geologic Time & Fossils

Trachyte

rock

Phytosaur

fossil reptile

Bottom Water

ocean layer

Continental Subarctic Climate

meteorology

Crust–mantle Model

geology

Deinonychus

dinosaur genus

Stropheodonta

fossil brachiopod genus

Trona

mineral

Hydroxylapatite

mineral

Sauropterygian

fossil reptile group

Galena

mineral

Sylvanite

mineral

Miacis

fossil mammal genus

Saturation Deficit

meteorology

Primary Mineral

mineral classification

Stylolite

geology