FOSSILS SPECIMEN: CRINOIDS, CYSTOIDS, AND BLASTOIDS

Fossils are defined as any evidenceĀ of prehistoric life. There are two types of fossils: Body Fossils include remains of skeletal bones, shell, carapace, test and teeth. Trace Fossils are clues the organism existed such as foot prints, tracks, burrows and coprolites (fossil dung).

Domain: Eukaria – Kingdom: Animalia – Phylum: Echinodermata “spiny skin” – Subphylum: Crinozoa – Class: Crinoidea

(crinoids)

Ordovician to Holocene

Crinoid Calyx and Arms in Matrix

Crinoid Arms in Matrix

Complete Crinoid in Matrix

Crinoid Calyx in Matrix

Crinoid Calyx and Column in Matrix

Crinoid Crown (Calyx and Arms) in Matrix

Crinoid Calyx

Paleozoic

North America

Crinoid Calyx

Paleozoic

North America

Crinoid Column in Matrix

Paleozoic

North America

Crinoid Pentameral Columns

Paleozoic

North America

Crinoid Column

Paleozoic

North America

Crinoid Column Floricyclus sp.

Pennsylvanian

(Upper Carboniferous)

Finis Shale, Graham Formation, Jacksboro, Jack County, Texas

Large Crinoid Column

Carboniferous

North America

Large Crinoid Columns

Carboniferous

North America

Large Crinoid Column in Matrix

Carboniferous

North America

Crinoid Column(s) in Matrix

Paleozoic

North America

Crinoid Holdfast

Paleozoic

North America

Crinoid Holdfast

Paleozoic

North America

Crinoids in matrix

Domain: Eukaria – Kingdom: Animalia – Phylum: Echinodermata “spiny skin” – Subphylum: Crinozoa – Class: Cystoidea

(cystoidea)

Ordovician to Devonian

Cystoid Quadrocystis graffhami

Ordovician Blackriverian

Pooleville Member Bromide Formation Criner Hills, Carter County, Oklahoma

Cystoid Holocystites scutellatus

Silurian Niagaran

Osgood Shale, Napoleon, Indiana

Domain: Eukaria – Kingdom: Animalia – Phylum: Echinodermata “spiny skin” – Subphylum: Blastozoa – Class: Blastoidea

(blastoids)

Ordovician to Permian

Blastoids Brachiopods and Bryozoans in Limestone Matrix

Paleozoic

North America

Blastoid Crowns Pentremities Godoni

Mississippian (Lower Carboniferous)

Paint Creek Formation Floraville Illinois

Blastoids in Limestone Matrix

Paleozoic

North America

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