Trace Fossils

Trace Fossils

Paleontology

Geology 331

Freshwater

Hardgrounds

and

Firmgrounds

and

Shoreface

Marine

Soft marine sediments

Skolithos burrows, Miss., WV. Skolithos Ichnfacies

Formation clues: Skolithosburrows in Aladdin Sandstone,

Black Hills, SD

Skolithos trace fossils in

the Cambrian of Wyoming

Arenicola, sediment

casings, and it’s

burrow opening

Ophiomorpha

gallery of burrows.

Eocene of

Mississippi.

Skolithos

Ichnofacies

Callianassa

or Ghost

Shrimp

Callianassa shrimp mounds: origin of Ophiomorpha.

Tidal flat, Florida Keys.

Trilobite traces, Cruziana Ichnofacies

Rusophycus, resting Cruziana, crawling

Diplichnites, crawling

Arthrophycus, Silurian. Cruziana Ichnofacies

Polychaete worm

Palaeophycus, Mississippian. Cruziana Ichnofacies

Olivellites, Pennsylvanian, WV. Cruziana Ichnofacies

Rhizocorallium, Penn. WV. Cruziana Ichnofacies

Bioturbation from abundant trace

fossils, Cruziana Ichnofacies,

Ordovician of Wyoming

Zoophycos, Miss., KY. Zoophycos Ichnofacies

Zoophycos

Turbidite beds in Kentucky

Escape structure,

Mississippian

turbidite, KY

Helminthoidea, Tertiary. Nereites Ichnofacies

Paleodictyon, Nereites Ichnofacies

Psuedofossils: Load casts, Miss., WV.