Ptychoparioidea is a superfamily of the

Ptychopariida Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in the second half of the Lower Cambrian, and the last species did not survive the Ordovician–Silurian ...

order of

trilobite Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the ...

s.Pour M. G., Popov L. E. (2009) Silicified Middle Cambrian trilobites from Kyrgyzstan, Palaeontology, 1039-1056

Taxonomy

*Family Acrocephalitidae *Family

Alokistocaridae Alokistocaridae is a family of ptychopariid trilobites that lived from the Botomian epoch of the Early Cambrian until the Late Cambrian. Alokistocarids were particle feeders and left small furrows which are occasionally preserved.Coppold, Murray ...

*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 Ptychopariidae is a family of trilobites, containing the following genera: *'' Achlysopsis'' *'' Altikolia'' *'' Altitudella'' *'' Amecephalites'' *'' Asthenopsis'' *'' Austinvillia'' *'' Balangcunaspis'' *''Bashania'' *'' Bathyholcus'' *'' Bathy ...

*Family Shumardiidae *Family Solenopleuridae *Family Tricrepicephalidae *Family Utiidae *Family Wuaniidae

References

Ptychoparioidea Cambrian trilobites Arthropod superfamilies {{Ptychopariida-stub