Ptychoparioidea

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: †Trilobitomorpha
Classis: †Trilobita
Ordo: †Ptychopariida
Subordo: †Ptychopariina
Superfamilia: Ptychoparioidea
Familiae: Acrocephalitidae - Alokistocaridae - Antagmidae - Asaphiscidae - Atopidae - Bolaspididae - Cedariidae - Changshaniidae - Conocoryphidae - Conokephalinidae - Crepicephalidae - Diceratocephalidae - Elviniidae - Eulomidae - Holocephalinidae - Ignotogregatidae - Inouyiidae - Isocolidae - Kingstoniidae - Liostracinidae - Llanoaspididae - Lonchocephalidae - Lorenzellidae - Mapaniidae - Marjumiidae - Menomoniidae - Nepeidae - Norwoodiidae - Papyriaspididae - Phylacteridae - Proasaphiscidae - Ptychopariidae - Shumardiidae - Solenopleuridae - Tricrepicephalidae - Utiidae - Wuaniidae

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

Family Acrocephalitidae
Family Alokistocaridae
Family Antagmidae
Family Asaphiscidae
Family Atopidae
Family Bolaspididae
Family Cedariidae
Family Changshaniidae
Family Conocoryphidae
Family Conokephalinidae
Family Crepicephalidae
Family Diceratocephalidae
Family Elviniidae
Family Eulomidae
Family Holocephalinidae
Family Ignotogregatidae
Family Inouyiidae
Family Isocolidae
Family Kingstoniidae
Family Liostracinidae
Family Llanoaspididae
Family Lonchocephalidae
Family Lorenzellidae
Family Mapaniidae
Family Marjumiidae
Family Menomoniidae
Family Nepeidae
Family Norwoodiidae
Family Papyriaspididae
Family Phylacteridae
Family Proasaphiscidae
Family Ptychopariidae
Family Shumardiidae
Family Solenopleuridae
Family Tricrepicephalidae
Family Utiidae
Family Wuaniidae

References

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