Crinoids

Sometimes called sea lilies, crinoids are actually marine animals. They belong to the phylum Echinodermata and are related to starfish and sea urchins. They lived attached to the sea floor by a stem or were mobile. Crinoids can be divided into four distinct parts, the stem, holdfast (root), calyx (the cup that contains the soft parts) and arms. Fossil crinoids are generally perserved as fragments of the three sections. Complete crinoids are considered rare and are therefore cherished by collectors. Click below to see a schematic of a crinoid.

Pictured here are a number of quality specimens in my collection. You will note that my crinoid collection is dominated by specimens from Ontario. This is mainly due to the proximity of the collecting localities to my residence. Most of the crinoids pictured here were personally collected and prepared.
Click on image to enlarge and see more detailed information. On that page, you can click on the image again to get a full page view of the spcimen.

Devonian Crinoids from Ontario, Canada


*Arthroacantha*	*Arthroacantha*	*Decorocrinus*	*Decorocrinus*	*Poteriocrinus*	*Corocrinus*

*Arthroacantha*	*Cadiscocrinus*	*Decadocrinus*	*Arthroacantha*	*Megistocrinus*	*Arthroacantha*

*Arthroacantha*	*Arthroacantha*	*Arthroacantha*	*Arthroacantha*	*Decorocrinuss*	*Arthroacantha*

Ordovician Crinoids from Ontario, Canada


*Reteocrinus*	*Reteocrinus*	*Diabolocrinus*	*Carabocrinus*	*Periglyptocrinus*	*Periglyptocrinus*

*Cupulocrinus*	*Cupulocrinus*	*Cupulocrinus*	*Cupulocrinus*	*Porocrinus*	*Cremacrinus*

*Glyptocrinus*	*Hybocystites*	*Anomalocrinus*	*Praecupulocrinus*	*Grenprisia*	*Hybocrinus*

*Illemnocrinus*	*Protaxocrinus*	*Daedalocrinus*	*Cleiocrinus*	*Iocrinus*	*Zoeycrinus*

*Isotomocrinus*	*Eustenocrinus*	*Reteocrinus*	*Dendrocrinus*	*Grenprisia*	*Praecupulocrinus*

Crinoid Holdfast	*Daedalocrinus*	*Carabocrinus*	*Periglyptocrinus*	*Glyptocrinus*	*Hybocrinus*

Mississippian Crinoids from Alabama


*Phanocrinus*	*Phacelocrinus*	*Zeacrinites*	*Acrocrinus*	*Aphelecrinus*	*Pentaramicrinus*

*Aphelecrinus*	*Oklahomacrinus*	*Cymbiocrinus*	*Zeacrinites*	*Cymbiocrinus*	*Onychocrinus*

*Cymbiocrinus*	*Dasciocrinus*	*Acrocrinus*	*Pterotocrinus*	*Taxocrinus*	*Phacelocrinus*

Mississippian Crinoids from the Burlington Limestone


*Macrocrinus*	*Gilbertsocrinus*	*Dorycrinus*	*Synbathocrinus*	*Cyathocrinites*	*Eutrochocrinus*

*Eratocrinus*	*Actinocrinites*	*Catocrinus*	*Blothrocrinus*	*Agaricocrinus*	*Physetocrinus*

*Cyathocrinites*	*Cercidocrinus*	*Teleiocrinus*	*Halysiocrinus*	*Cyathocrinites*	*Nunnacrinus*

Other Crinoids


*Jimbacrinus*	*Eucalyptocrinus*	*Platycrinites*	*Cyathocrinites*	*Ptychocrinus*	*Barycrinus*

*Onychocrinus*	*Erisocrinus*	*Logocrinus*	*Onychocrinus*	*Dizygocrinus*	*Scytalocrinus*

*Dizygocrinus*	*Zeacrinites*	*Dizygocrinus*	*Onychocrinus*	*Rhodocrinites*	*Huntercrinus*

*Eucalyptocrinus*	*Eucalyptocrinus*	*Dorycrinus*	*Cydrocrinus*	*Cosmetocrinus*	*Platycrinites*

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