| Ptychoparioidea Temporal range:   | |
|---|---|
![]()  | |
| Elrathia kingii (family Alokistocaridae) from the Wheeler Shale (Middle Cambrian), Utah. | |
| Scientific classification  | |
| Domain: | Eukaryota | 
| 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
- 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
 
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