Ptychoparopsis

Ptychoparopsis; Temporal range: Botomian
Conservation status
	Fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Ptychopariida
Family:	Alokistocaridae
Genus:	Ptychoparopsis

Ptychoparopsis is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Botomian stage,^[1] which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period.

^ ^a ^b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560. Retrieved 2008-01-12.