Oryctocephalus

Oryctocephalus; Temporal range: Burgess Shale PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Order:	†Corynexochida
Family:	†Oryctocephalidae
Genus:	†Oryctocephalus; Walcott 1886
Species
	Oryctocephalus burgessensis; Resser 1938; Oryctocephalus indicus; Reed 1910; Oryctocephalus matthewi; Rasetti 1951; Oryctocephalus reynoldsi; Reed 1899; Oryctocephalus reticulatus; Lermontova 1940;

Oryctocephalus is a genus of trilobite known from the Middle Cambrian Burgess Shale. Template:Gpb abundance This small- to medium-sized trilobite's major characteristics are prominent eye ridges, pleural spines, long genal spines, spines on the pygidium, and notably four furrows connecting pairs of pits on its glabella.^[1] Juvenile specimens have been found with only 5 or 6 thoracic segments and about one eighth of adult size, as well as about 2 mm wide.^[2]

References

^ Coppold, Murray and Wayne Powell (2006). A Geoscience Guide to the Burgess Shale, p.56. The Burgess Shale Geoscience Foundation, Field, British Columbia. ISBN 0-9780132-0-4.
^ Coppold, Murray and Wayne Powell (2006). A Geoscience Guide to the Burgess Shale, p.60. The Burgess Shale Geoscience Foundation, Field, British Columbia. ISBN 0-9780132-0-4.

External links

Template:Burgess Shale species

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[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 0-9780132-0-4.

[2] Coppold, Murray and Wayne Powell (2006). A Geoscience Guide to the Burgess Shale, p.60. The Burgess Shale Geoscience Foundation, Field, British Columbia. ISBN 0-9780132-0-4.

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