Perspicaris
Perspicaris | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Genus: | Perspicaris Briggs 1977 |
Species | |
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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. 202 specimens of Perspicaris are known from the Greater Phyllopod bed, where they comprise 0.38% of the community.[3]
External links
- "Perspicaris dictynna". Burgess Shale Fossil Gallery. Virtual Museum of Canada. 2011.
References
- ↑ Briggs, D.E.G. (1977). "{title}" (PDF). Palaeontology. Archived from the original (PDF) on 2011-08-24. Retrieved 2010-05-11.
- ↑ http://www.nmnh.si.edu/paleo/shale/pperspic.htm%5Bpermanent+dead+link%5D
- ↑ Caron, Jean-Bernard; Jackson, Donald A. (October 2006). "Taphonomy of the Greater Phyllopod Bed community, Burgess Shale". PALAIOS. 21 (5): 451–65. doi:10.2110/palo.2003.P05-070R. JSTOR 20173022.
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