Perspicaris

Perspicaris
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Genus:	Perspicaris; Briggs 1977
Species
	P. recondita Briggs 1977; P. dictynna (type species, =Canadaspis dictynna Simonetta & Delle Cave 1975);

Perspicaris is a fossil arthropod from the Cambrian period. It was 2–3 centimetres (0.8–1.2 in) long and bivalved. The valves, encasing the thorax, were joined together by a dorsal hinge.

It is difficult to establish the lifestyle of Perspicaris. Its large eyes and other parts would suggest a swimming animal, yet it lacks claws, which seems to suggest a bottom feeder.^[2]

Two species of Perspicaris are found in the famous Burgess Shale in British Columbia, Canada. Template:Gpb abundance

External links

Template:Burgess Shale species

References

^ Briggs, D.E.G. (1977). "{title}" (PDF). Palaeontology. Archived from the original (PDF) on 2011-08-24. Retrieved 2010-05-11. {{cite journal}}: Unknown parameter |dead-url= ignored (|url-status= suggested) (help)
^ http://www.nmnh.si.edu/paleo/shale/pperspic.htm^{[permanent dead link]}

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[1] Briggs, D.E.G. (1977). "{title}" (PDF). Palaeontology. Archived from the original (PDF) on 2011-08-24. Retrieved 2010-05-11. {{cite journal}}: Unknown parameter |dead-url= ignored (|url-status= suggested) (help)

[2] ttp://www.nmnh.si.edu/paleo/shale/pperspic.htm^{[permanent dead link]}

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