Tag: Fossils & Geologic Time

Ichthyostega

fossil amphibian genus

Bothriolepis

placoderm genus

Tropites

fossil cephalopod genus

Brontothere

fossil mammal genus

Aneurophyton

fossil plant genus

Neospirifer

fossil brachiopod genus

Hallopora

fossil bryozoan genus

Bumastus

trilobite genus

Resserella

fossil brachiopod genus

Grand Canyon Series

geology

Cedaria

trilobite genus

Morrison Formation

geology

Phenacodus

fossil mammal genus

Multituberculate

fossil mammal

Rhamphorhynchus

fossil reptile genus

Venyukovia

fossil tetrapod