Earth Science, Geologic Time & Fossils

Platyceras

fossil snail genus

Tectonics

geology

Andalusite

mineral

Marine Geology

Arctolepis

placoderm genus

Geomorphic Cycle

Soil Chemistry

Dip Circle

scientific instrument

Tertiary Period

Events, Climate, & Organisms

Ijolite

rock

Haboob

wind storm

Acanthite

mineral

Anthrosol

FAO soil group

Cavendish, Thomas

English navigator and explorer

Legendre, Adrien-Marie

French mathematician

Therizinosaur

dinosaur