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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