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.
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.
- "Perspicaris dictynna". Burgess Shale Fossil Gallery. Virtual Museum of Canada. 2011.
- Briggs, D.E.G. (1977). "Archived copy" (PDF). Palaeontology. Archived from the original (PDF) on 2011-08-24. Retrieved 2010-05-11.CS1 maint: archived copy as title (link)
- http://www.nmnh.si.edu/paleo/shale/pperspic.htm[permanent dead link]
- 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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