Robison, R.A. and Babcock, L.E. 2011. Systematics, paleobiology, and taphonomy of some exceptionally preserved trilobites from Cambrian Lagerstätten of Utah: Agnostida, Asaphida, Corynexochida, Ptychopariida, taxonomy, biofilm. Paleontological Contributions. 5 (Nov. 2011). DOI:https://doi.org/10.17161/PC.1808.8543.