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 plankton.

Pleurocystites
Temporal range: Late Ordovician
Pleurocystites squamosus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Class: Rhombifera
Order: Dichoporita
Family: Pleurocystitidae
Genus: Pleurocystites

Sources

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  • Fossils (Smithsonian Handbooks) by David Ward (Page 191)
  • Parker, Steve. Dinosaurus: the complete guide to dinosaurs. Firefly Books Inc, 2003. Pg. 75
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