Glyptocrinus

Glyptocrinus is an extinct genus of sea lily that lived from the Middle Ordovician to the Early Silurian (471.8 - 436.0 Ma). Its remains have been found in North America.

Glyptocrinus Temporal range: Middle Ordovician - Early Silurian
Fossil specimen of Glyptocrinus decadactylus from United States, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Subphylum:	Crinozoa
Class:	Crinoidea
Subclass:	Camerata
Order:	Monobathrida
Family:	Glyptocrinidae
Genus:	Glyptocrinus Hall 1847