@article {48082,
	title = {Ontologeny and evolution of the early Cambrian trilobite genus Nephrolenellus (Olenelloidea)},
	volume = {81},
	year = {2007},
	pages = {1168-1193},
	publisher = {Journal of Paleontology},
	url = {http://www.jstor.org/stable/1302612?seq=17},
	author = {Webster, Mark}
}
