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