Ogygopsis

Ogygopsis Temporal range: Cambrian PreЄ Є O S D C P T J K Pg N
Ogygopsis klotzi
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Corynexochida
Family:	Dorypygidae
Genus:	Ogygopsis Walcott, 1889

Ogygopsis is a genus of trilobite from the Cambrian of Antarctica and North America, specifically the Burgess Shale. It is the most common fossil in the Mt. Stephen fossil beds there, but rare in other Cambrian faunas. Its major characteristics are a prominent glabella with eye ridges, lack of pleural spines, a large spineless pygidium about as long as the thorax or cephalon, and its length: up to 12 cm.^[1]

Sources

• Fossils (Smithsonian Handbooks) by David Ward (Page 64)
• Ogygopsis in the Paleobiology Database

1. ^ Coppold, Murray and Wayne Powell (2006). A Geoscience Guide to the Burgess Shale, p.56. The Burgess Shale Geoscience Foundation, Field, British Columbia. ISBN 0978013204.