Pleurocystites

Pleurocystites
Temporal range: Late Ordovician
Pleurocystites squamosus
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Subphylum: Crinozoa
Class: Rhombifera
Genus: Pleurocystites

Pleurocystites (meaning rib bag or side bladder) is a genus of rhombiferan echinoderm (a cystoid) that lived in the Late Ordovician. Its fossils are known from Europe and North America. Pleurocystites grew to a height of 2 centimeters (3/4 of an inch) and fed on tiny, floating particles.

Sources

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