Earth Science, Geologic Time & Fossils

Richthofen, Ferdinand Paul Wilhelm, Freiherr Von

German geographer

Tetractinella

fossil brachiopod genus

Diplograptus

graptolite genus

Sinter

mineral

Superposition, Law Of

Definition & Facts

Indian Summer

meteorology

Geikie, Sir Archibald

British geologist

Leptodesma

fossil clam genus

Cretaceous Period

Climate, Dinosaurs, & Map

Carnosaur

dinosaur group

Nepheline Syenite

rock

Cerargyrite

mineral

Carnotite

mineral

Palladium

Uses, Properties, & Facts

Fumarole

geology

Bougainville, Louis-Antoine De

French navigator