Trilobites Reference Documents:


Main Directories:

Trilobites by:

Genus / Species

Trilobite Formations

Trilobite Locations

Western Trilobites References


Trilobites Reference Documents


Trilobites Links


Trilobite Synonomy

(for all the recent changes that we are trying to keep up with)







Trilobite Systematics

Western Trilobites Association





To view these .pdf files, you will need to download a copy of Adobe Acrobat Reader. This is available free from Adobe at their WWW site.



Hamilton, Michael M., Derkey, and McCollum, Linda B. (2003) Early Middle Cambrian (Glossopleura Biozone) Trilobites in a Steptoe surrounded by Columbia River Basalt near Spokane, Washington. Geological Society of America Abstracts with Programs, Vol. 35, No. 6, September 2003, p. 159. (PDF - 76 kb)


Sundberg, F.A., 2004, Cladistic analysis of Early-Middle Cambrian Kochaspid trilobites (Ptychopariida) . Journal of Paleontology, v. 78(5), p. 920-940. (PDF - 223 kb)


Sundberg, F.A., 2000, Homeotic evolution in Cambrian trilobites. Paleobiology, v. 26(2), p. 258-270. (PDF - 325 kb)


Sundberg, F.A., 1996, Morphological diversification of Ptychopariida (Trilobita) from the Marjumiid Biomere (Middle and Upper Cambrian) . Paleobiology, v. 22, No. 1 (Winter, 1996) p. 49-65. (PDF - 2,149 kb)


Sundberg, F.A., and McCollum, L. B., 2003, Trilobites of the lower Middle Cambrian Poliella denticulata Biozone (new) of southeastern Nevada. Journal of Paleontology, v. 77, p. 331-359. (PDF - 3,429 kb)


Sundberg, F.A., and McCollum, L. B., 2003, Early and Mid Cambrian trilobites from the outer-shelf deposits of Nevada and California, USA . Palaeontology, v. 46, Part 5, p. 945-986. (PDF - 5277 kb)


Sundberg, F.A., and McCollum, L. B., 2002, Kochiella Poulsen, 1927, and Hadrocephalites new genus (Trilobita: Ptychopariida) from the early Middle Cambrian of western North America. Journal of Paleontology, v. 76, p. 76-94. (PDF - 2,119 kb)


Sundberg, F.A., and McCollum, L. B., 2000, Ptychopariid trilobites from the Lower-Middle Cambrian boundary interval, Pioche Shale, southeastern Nevada. Journal of Paleontology, v. 74, p. 604-630. (PDF - 657 kb)


Devereux, M.G., 2001. Palaeoecology of the Middle Cambrian Raymond Quarry Fauna, Burgess Shale, British Columbia.  M.Sc. thesis, Department of Earth Sciences (Geology), The University of Western Ontario. (PDF - 7915 kb)


Thanks to Matt Devereux for permission to post his thesis. The individual text, Excell, etc. files from this thesis are available upon request. Please contact Kevin for more information.





     Many thanks to Dr. Linda McCollum, Dr. Fred Sundberg, and Matt Devereux for permission to post these articles!




page designed and maintained by Kevin D. Brett