Ptychoparioidea

Ptychoparioidea; Temporal range: Cambrian Stage 3–Late Ordovician PreꞒ Ꞓ O S D C P T J K Pg N
	Elrathia kingii (family Alokistocaridae) from the Wheeler Shale (Middle Cambrian), Utah.
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Order:	†Ptychopariida
Superfamily:	†Ptychoparioidea; Pour and Popov, 2008
Families
	See text

Ptychoparioidea is a superfamily of the Ptychopariida order of trilobites.^[1]^[2]^[3]^[4]

Taxonomy[]

^ Sundberg F. A., McCollum L.B. (2003) Trilobites of the lower Middle Cambrian Poliella denticulata biozone (new) of southeastern Nevada, Journal of Paleontology, 331-359
^ Sundberg F. A., McCollum L. B. (2000) Ptychoparid trilobites of the Lower-Middle Cambrian boundary interval, Pioche Shale, southeastern Nevada, Journal of Paleontology, 604-630
^ Landing E., Johnson S. C., et al (2008) Faunas and Cambrian volcanism on the Avalonian marginal platform, southern New Brunswick, Journal of Paleontology 82 5, 884-905
^ Pour M. G., Popov L. E. (2009) Silicified Middle Cambrian trilobites from Kyrgyzstan, Palaeontology, 1039-1056

This Ptychopariida-related article is a stub. You can help Wikipedia by .

Ptychoparioidea Temporal range: Cambrian Stage 3–Late Ordovician PreꞒ Ꞓ O S D C P T J K Pg N

Elrathia kingii (family Alokistocaridae) from the Wheeler Shale (Middle Cambrian), Utah.
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Order:	†Ptychopariida
Superfamily:	†Ptychoparioidea Pour and Popov, 2008
Families
See text