Ptychopariida Add to phylogenetic matrix

Order

Taxonomic relationships of Ptychopariida

• Cyclognathina belongs to Ptychopariida - Sepkoski (2002)
• Nilcgna belongs to Ptychopariida - Sepkoski (2002)
• Habrocephalus belongs to Ptychopariida - Sepkoski (2002)
• Petruninaspis belongs to Ptychopariida - Sepkoski (2002)
• Litaspis belongs to Ptychopariida - Sepkoski (2002)
• Papyriaspididae belongs to Ptychopariida - Whittington et al. (1997)
• Varanella belongs to Ptychopariida - Sepkoski (2002)
• Neoshirakiella belongs to Ptychopariida - Sepkoski (2002)
• Bathyocos belongs to Ptychopariida - Sepkoski (2002)
• Corbina belongs to Ptychopariida - Sepkoski (2002)
• Neotaenicephalus belongs to Ptychopariida - Sepkoski (2002)
• Glyptometopus belongs to Ptychopariida - Sepkoski (2002)
• Periommella belongs to Ptychopariida - Sepkoski (2002)
• Liocare belongs to Ptychopariida - Sepkoski (2002)
• Norwoodiidae belongs to Ptychopariida - Whittington et al. (1997)
• Tympanuella belongs to Ptychopariida - Sepkoski (2002)
• Neoacrocephalites belongs to Ptychopariida - Sepkoski (2002)
• Badainjaranaspis belongs to Ptychopariida - Sepkoski (2002)
• Acrocephalitidae belongs to Ptychopariida - Whittington et al. (1997)
• Coenaspis belongs to Ptychopariida - Sepkoski (2002)
• Crepichilella belongs to Ptychopariida - Sepkoski (2002)
• Leocephalus belongs to Ptychopariida - Sepkoski (2002)
• Triarthrella belongs to Ptychopariida - Sepkoski (2002)
• Nambeetella belongs to Ptychopariida - Sepkoski (2002)
• Asilluchus belongs to Ptychopariida - Sepkoski (2002)
• Olenidae belongs to Ptychopariida - Whittington et al. (1997)
• Chulanolenus belongs to Ptychopariida - Sepkoski (2002)
• Galeaspis belongs to Ptychopariida - Sepkoski (2002)
• Pedinaspis belongs to Ptychopariida - Sepkoski (2002)
• Argunaspis belongs to Ptychopariida - Sepkoski (2002)
• Chondrastaulina belongs to Ptychopariida - Sepkoski (2002)
• Fatocephalus belongs to Ptychopariida - Sepkoski (2002)
• Paratermierella belongs to Ptychopariida - Sepkoski (2002)
• Irinia belongs to Ptychopariida - Sepkoski (2002)
• Rasettaspis belongs to Ptychopariida - Sepkoski (2002)
• Lecanoaspis belongs to Ptychopariida - Sepkoski (2002)
• Marjumiidae belongs to Ptychopariida - Whittington et al. (1997)
• Tholus belongs to Ptychopariida - Sepkoski (2002)
• Miranda belongs to Ptychopariida - Sepkoski (2002)
• Eurostina belongs to Ptychopariida - Sepkoski (2002)
• Paraolenus belongs to Ptychopariida - Sepkoski (2002)
• Inoyellaspis belongs to Ptychopariida - Sepkoski (2002)
• Qingshuihella belongs to Ptychopariida - Sepkoski (2002)
• Krolina belongs to Ptychopariida - Sepkoski (2002)
• Crepicephalidae belongs to Ptychopariida - Whittington et al. (1997)
• Taoyuania belongs to Ptychopariida - Sepkoski (2002)
• Metisaspina belongs to Ptychopariida - Sepkoski (2002)
• Apachia belongs to Ptychopariida - Sepkoski (2002)
• Champlainia belongs to Ptychopariida - Sepkoski (2002)
• Enammocephalus belongs to Ptychopariida - Sepkoski (2002)
• Paralorenzella belongs to Ptychopariida - Sepkoski (2002)
• Idiorapha belongs to Ptychopariida - Sepkoski (2002)
• Ptychoparoides belongs to Ptychopariida - Sepkoski (2002)
• Kirengelia belongs to Ptychopariida - Sepkoski (2002)
• Proasaphiscidae belongs to Ptychopariida - Whittington et al. (1997)
• Stella belongs to Ptychopariida - Sepkoski (2002)
• Meniscocorphye belongs to Ptychopariida - Sepkoski (2002)
• Anopocodia belongs to Ptychopariida - Sepkoski (2002)
• Catasolenopleura belongs to Ptychopariida - Sepkoski (2002)
• Ellipsostrenua belongs to Ptychopariida - Sepkoski (2002)
• Paraeosoptychoparia belongs to Ptychopariida - Sepkoski (2002)
• Hupeia belongs to Ptychopariida - Sepkoski (2002)
• Pseudolenus belongs to Ptychopariida - Sepkoski (2002)
• Kazelina belongs to Ptychopariida - Sepkoski (2002)
• Cedariidae belongs to Ptychopariida - Whittington et al. (1997)
• Shenjiawania belongs to Ptychopariida - Sepkoski (2002)
• Maotunia belongs to Ptychopariida - Sepkoski (2002)
• Anemocephalops belongs to Ptychopariida - Sepkoski (2002)
• Bulnibarbi belongs to Ptychopariida - Sepkoski (2002)
• Karagandoides belongs to Ptychopariida - Sepkoski (2002)
• Conocoryphidae belongs to Ptychopariida - Whittington et al. (1997)
• Schyilaspis belongs to Ptychopariida - Sepkoski (2002)
• Magnomma belongs to Ptychopariida - Sepkoski (2002)
• Amquia belongs to Ptychopariida - Sepkoski (2002)
• Yuehsieszella belongs to Ptychopariida - Sepkoski (2002)
• Brassicicephalus belongs to Ptychopariida - Sepkoski (2002)
• Ejinaspis belongs to Ptychopariida - Sepkoski (2002)
• Parabathycheilus belongs to Ptychopariida - Sepkoski (2002)
• Houmengia belongs to Ptychopariida - Sepkoski (2002)
• Pseudatops belongs to Ptychopariida - Sepkoski (2002)
• Salankanaspis belongs to Ptychopariida - Sepkoski (2002)
• Lydiaspis belongs to Ptychopariida - Sepkoski (2002)
• Alekcinella belongs to Ptychopariida - Sepkoski (2002)
• Yabeia belongs to Ptychopariida - Sepkoski (2002)
• Biscoia belongs to Ptychopariida - Sepkoski (2002)
• Dolgaia belongs to Ptychopariida - Sepkoski (2002)
• Ouijjania belongs to Ptychopariida - Sepkoski (2002)
• Hindermeyeria belongs to Ptychopariida - Sepkoski (2002)
• Protohedinia belongs to Ptychopariida - Sepkoski (2002)
• Jiangsucephalus belongs to Ptychopariida - Sepkoski (2002)
• Deltina belongs to Ptychopariida - Sepkoski (2002)
• Orlovia belongs to Ptychopariida - Sepkoski (2002)
• Helieranella belongs to Ptychopariida - Sepkoski (2002)
• Propatokephalops belongs to Ptychopariida - Sepkoski (2002)
• Jessievillia belongs to Ptychopariida - Sepkoski (2002)
• Rinconia belongs to Ptychopariida - Sepkoski (2002)
• Luottuolingia belongs to Ptychopariida - Sepkoski (2002)
• Acanthopleurella belongs to Ptychopariida - Sepkoski (2002)
• Wongia belongs to Ptychopariida - Sepkoski (2002)
• Bicella belongs to Ptychopariida - Sepkoski (2002)
• Dananzhuangaspis belongs to Ptychopariida - Sepkoski (2002)
• Octobronteus belongs to Ptychopariida - Sepkoski (2002)
• Harpidoides belongs to Ptychopariida - Sepkoski (2002)
• Polycertaspis belongs to Ptychopariida - Sepkoski (2002)
• Loganopeltis belongs to Ptychopariida - Sepkoski (2002)
• Trinucleina belongs to Ptychopariida - Harrington and Leanz (1957)
• Wangzishia belongs to Ptychopariida - Sepkoski (2002)
• Beothuckia belongs to Ptychopariida - Sepkoski (2002)
• Culmenaspis belongs to Ptychopariida - Sepkoski (2002)
• Nericiaspis belongs to Ptychopariida - Sepkoski (2002)
• Groenwallia belongs to Ptychopariida - Sepkoski (2002)
• Pesaia belongs to Ptychopariida - Sepkoski (2002)
• Liosolenopleura belongs to Ptychopariida - Sepkoski (2002)
• Urjungaspis belongs to Ptychopariida - Sepkoski (2002)
• Neohedinaspis belongs to Ptychopariida - Sepkoski (2002)
• Batchatiella belongs to Ptychopariida - Sepkoski (2002)
• Solenopleuridae belongs to Ptychopariida - Whittington et al. (1997)
• Conococheaquea belongs to Ptychopariida - Sepkoski (2002)
• Pelturina belongs to Ptychopariida - Sepkoski (2002)
• Limpeina belongs to Ptychopariida - Sepkoski (2002)
• Tuberaspis belongs to Ptychopariida - Sepkoski (2002)
• Natmus belongs to Ptychopariida - Sepkoski (2002)
• Avonina belongs to Ptychopariida - Sepkoski (2002)
• Ptychopariidae belongs to Ptychopariida - Whittington et al. (1997)
• Ciliscutellum belongs to Ptychopariida - Sepkoski (2002)
• Craigheadia belongs to Ptychopariida - Sepkoski (2002)
• Neosolenopleurella belongs to Ptychopariida - Sepkoski (2002)
• Gloria belongs to Ptychopariida - Sepkoski (2002)
• Leioscutellum belongs to Ptychopariida - Sepkoski (2002)
• Tosotychia belongs to Ptychopariida - Sepkoski (2002)
• Munijia belongs to Ptychopariida - Sepkoski (2002)
• Ascionepea belongs to Ptychopariida - Sepkoski (2002)
• Ellipsocephalidae belongs to Ptychopariida - Whittington et al. (1997)
• Chuangiformis belongs to Ptychopariida - Sepkoski (2002)
• Fissocephalus belongs to Ptychopariida - Sepkoski (2002)
• Patronaspis belongs to Ptychopariida - Sepkoski (2002)
• Changshanocephalus belongs to Ptychopariida - Sepkoski (2002)
• Faciura belongs to Ptychopariida - Sepkoski (2002)
• Parapeishania belongs to Ptychopariida - Sepkoski (2002)
• Iohomia belongs to Ptychopariida - Sepkoski (2002)
• Randicephalus belongs to Ptychopariida - Sepkoski (2002)
• Lauzonella belongs to Ptychopariida - Sepkoski (2002)
• Termieraspis belongs to Ptychopariida - Sepkoski (2002)
• Michaspis belongs to Ptychopariida - Sepkoski (2002)
• Aposolenopleura belongs to Ptychopariida - Sepkoski (2002)
• Euonchonotina belongs to Ptychopariida - Sepkoski (2002)
• Paranumia belongs to Ptychopariida - Sepkoski (2002)
• Iniotoma belongs to Ptychopariida - Sepkoski (2002)
• Pyttstrigis belongs to Ptychopariida - Sepkoski (2002)
• Kounamkites belongs to Ptychopariida - Sepkoski (2002)
• Shumardiidae belongs to Ptychopariida - Whittington et al. (1997)
• Talbotinella belongs to Ptychopariida - Sepkoski (2002)
• Mesetaia belongs to Ptychopariida - Sepkoski (2002)
• Anuloides belongs to Ptychopariida - Sepkoski (2002)
• Cedarellus belongs to Ptychopariida - Sepkoski (2002)
• Elviraspis belongs to Ptychopariida - Sepkoski (2002)
• Parakingasidoides belongs to Ptychopariida - Sepkoski (2002)
• Hypothetica belongs to Ptychopariida - Sepkoski (2002)
• Pseudosolenopleura belongs to Ptychopariida - Sepkoski (2002)
• Kirkdomina belongs to Ptychopariida - Sepkoski (2002)
• Elviniidae belongs to Ptychopariida - Whittington et al. (1997)
• Sinocrepicephalus belongs to Ptychopariida - Sepkoski (2002)
• Megalopsis belongs to Ptychopariida - Sepkoski (2002)
• Angustaeva belongs to Ptychopariida - Sepkoski (2002)
• Cainatops belongs to Ptychopariida - Sepkoski (2002)
• Paraenshia belongs to Ptychopariida - Sepkoski (2002)
• Huainania belongs to Ptychopariida - Sepkoski (2002)
• Pseudokadyella belongs to Ptychopariida - Sepkoski (2002)
• Kaufmannella belongs to Ptychopariida - Sepkoski (2002)
• Semicyclocephalus belongs to Ptychopariida - Sepkoski (2002)
• Manchurocephalus belongs to Ptychopariida - Sepkoski (2002)
• Anabaraspis belongs to Ptychopariida - Sepkoski (2002)
• Catillicephalidae belongs to Ptychopariida - Whittington et al. (1997)
• Bucksella belongs to Ptychopariida - Sepkoski (2002)
• Eldoradia belongs to Ptychopariida - Sepkoski (2002)
• Kameschkoviella belongs to Ptychopariida - Sepkoski (2002)
• Schoriella belongs to Ptychopariida - Sepkoski (2002)
• Magnacephalus belongs to Ptychopariida - Sepkoski (2002)
• Amphorella belongs to Ptychopariida - Sepkoski (2002)
• Yohoaspis belongs to Ptychopariida - Sepkoski (2002)
• Bolaspidellus belongs to Ptychopariida - Sepkoski (2002)
• Edithiella belongs to Ptychopariida - Sepkoski (2002)
• Papyriaspis belongs to Ptychopariida - Sepkoski (2002)
• Hospes belongs to Ptychopariida - Sepkoski (2002)
• Pruvostinoides belongs to Ptychopariida - Sepkoski (2002)
• Xiushuilithus belongs to Ptychopariida - Sepkoski (2002)
• Bigotinella belongs to Ptychopariida - Sepkoski (2002)
• Dipyrgotes belongs to Ptychopariida - Sepkoski (2002)
• Ottenbyaspis belongs to Ptychopariida - Sepkoski (2002)
• Hidascutellum belongs to Ptychopariida - Sepkoski (2002)
• Protagraulos belongs to Ptychopariida - Sepkoski (2002)
• Jiangsuaspis belongs to Ptychopariida - Sepkoski (2002)
• Plethopeltidae belongs to Ptychopariida - Whittington et al. (1997)
• Sagitoides belongs to Ptychopariida - Sepkoski (2002)
• Luyanhaoia belongs to Ptychopariida - Sepkoski (2002)
• Agraulopsis belongs to Ptychopariida - Sepkoski (2002)
• Delleana belongs to Ptychopariida - Sepkoski (2002)
• Onchopeltis belongs to Ptychopariida - Sepkoski (2002)
• Hatangia belongs to Ptychopariida - Sepkoski (2002)
• Proaulacopleura belongs to Ptychopariida - Sepkoski (2002)
• Janxilithus belongs to Ptychopariida - Sepkoski (2002)
• Remizites belongs to Ptychopariida - Sepkoski (2002)
• Lunacephalus belongs to Ptychopariida - Sepkoski (2002)
• Acanthometopus belongs to Ptychopariida - Sepkoski (2002)
• Wilsonarella belongs to Ptychopariida - Sepkoski (2002)
• Biavertia belongs to Ptychopariida - Sepkoski (2002)
• Damaiaoaspis belongs to Ptychopariida - Sepkoski (2002)
• Obrucheviaspis belongs to Ptychopariida - Sepkoski (2002)
• Hanivella belongs to Ptychopariida - Sepkoski (2002)
• Platyharpes belongs to Ptychopariida - Sepkoski (2002)
• Lochmanaspis belongs to Ptychopariida - Sepkoski (2002)
• Olenina belongs to Ptychopariida - Harrington and Leanz (1957)
• Verkholenella belongs to Ptychopariida - Sepkoski (2002)
• Bemaspis belongs to Ptychopariida - Sepkoski (2002)
• Crusoia belongs to Ptychopariida - Sepkoski (2002)
• Nericia belongs to Ptychopariida - Sepkoski (2002)
• Grandioculus belongs to Ptychopariida - Sepkoski (2002)
• Perioura belongs to Ptychopariida - Sepkoski (2002)
• Liopelta belongs to Ptychopariida - Sepkoski (2002)
• Lorenzellidae belongs to Ptychopariida - Whittington et al. (1997)
• Urbanaspis belongs to Ptychopariida - Sepkoski (2002)
• Neoanomocerella belongs to Ptychopariida - Sepkoski (2002)
• Baikonuraspis belongs to Ptychopariida - Sepkoski (2002)
• Bolaspididae belongs to Ptychopariida - Whittington et al. (1997)
• Collyrolenus belongs to Ptychopariida - Sepkoski (2002)
• Leptoplastus belongs to Ptychopariida - Sepkoski (2002)
• Raymondinidae belongs to Ptychopariida - Whittington et al. (1997)
• Triarthroides belongs to Ptychopariida - Sepkoski (2002)
• Nassovia belongs to Ptychopariida - Sepkoski (2002)
• Aulacodigma belongs to Ptychopariida - Sepkoski (2002)
• Kingstoniidae belongs to Ptychopariida - Whittington et al. (1997)
• Ciliocephalus belongs to Ptychopariida - Sepkoski (2002)
• Gaotanaspis belongs to Ptychopariida - Sepkoski (2002)
• Peishania belongs to Ptychopariida - Sepkoski (2002)
• Torridella belongs to Ptychopariida - Sepkoski (2002)
• Mundocephalina belongs to Ptychopariida - Sepkoski (2002)
• Arraphus belongs to Ptychopariida - Sepkoski (2002)
• Chosenia belongs to Ptychopariida - Sepkoski (2002)
• Ferralsia belongs to Ptychopariida - Sepkoski (2002)
• Paratretaspis belongs to Ptychopariida - Sepkoski (2002)
• Irvingelloides belongs to Ptychopariida - Sepkoski (2002)
• Regius belongs to Ptychopariida - Sepkoski (2002)
• Lecanopleura belongs to Ptychopariida - Sepkoski (2002)
• Lisaniidae belongs to Ptychopariida - Whittington et al. (1997)
• Eurycare belongs to Ptychopariida - Sepkoski (2002)
• Parapachyaspis belongs to Ptychopariida - Sepkoski (2002)
• Interalia belongs to Ptychopariida - Sepkoski (2002)
• Rampartaspis belongs to Ptychopariida - Sepkoski (2002)
• Kuljumbina belongs to Ptychopariida - Sepkoski (2002)
• Diceratocephalidae belongs to Ptychopariida - Whittington et al. (1997)
• Tatulaspis belongs to Ptychopariida - Sepkoski (2002)
• Metisaspis belongs to Ptychopariida - Sepkoski (2002)
• Apomodocia belongs to Ptychopariida - Sepkoski (2002)
• Chanciaopsis belongs to Ptychopariida - Sepkoski (2002)
• Erdoradites belongs to Ptychopariida - Sepkoski (2002)
• Paramicmacca belongs to Ptychopariida - Sepkoski (2002)
• Ignotogregatus belongs to Ptychopariida - Sepkoski (2002)
• Ptychoparopsis belongs to Ptychopariida - Sepkoski (2002)
• Komaspis belongs to Ptychopariida - Sepkoski (2002)
• Striticephala belongs to Ptychopariida - Sepkoski (2002)
• Menocephalites belongs to Ptychopariida - Sepkoski (2002)
• Antatlasia belongs to Ptychopariida - Sepkoski (2002)
• Cedaraspis belongs to Ptychopariida - Sepkoski (2002)
• Elvinoides belongs to Ptychopariida - Sepkoski (2002)
• Parairvingella belongs to Ptychopariida - Sepkoski (2002)
• Hyperoparia belongs to Ptychopariida - Sepkoski (2002)
• Pseudomexicella belongs to Ptychopariida - Sepkoski (2002)
• Kepisis belongs to Ptychopariida - Sepkoski (2002)
• Shumardops belongs to Ptychopariida - Sepkoski (2002)
• Megadunderbergia belongs to Ptychopariida - Sepkoski (2002)
• Anemocephalus belongs to Ptychopariida - Sepkoski (2002)
• Bvalbardites belongs to Ptychopariida - Sepkoski (2002)
• Huaibeia belongs to Ptychopariida - Sepkoski (2002)
• Pseudoalokistocare belongs to Ptychopariida - Sepkoski (2002)
• Kasatchaspis belongs to Ptychopariida - Sepkoski (2002)
• Menomoniidae belongs to Ptychopariida - Whittington et al. (1997)
• Seletoides belongs to Ptychopariida - Sepkoski (2002)
• Malinaspis belongs to Ptychopariida - Sepkoski (2002)
• Amzasskiella belongs to Ptychopariida - Sepkoski (2002)
• Nephalicephalus belongs to Ptychopariida - Peters (2003)
• Brutaspis belongs to Ptychopariida - Sepkoski (2002)
• Elatius belongs to Ptychopariida - Sepkoski (2002)
• Paracrocephalites belongs to Ptychopariida - Sepkoski (2002)
• Asaphiscidae belongs to Ptychopariida - Whittington et al. (1997)
• Sangzhiscutellum belongs to Ptychopariida - Sepkoski (2002)
• Macelloura belongs to Ptychopariida - Sepkoski (2002)
• Amicus belongs to Ptychopariida - Sepkoski (2002)
• Yinpanolithus belongs to Ptychopariida - Sepkoski (2002)
• Blainiopsis belongs to Ptychopariida - Sepkoski (2002)
• Dunderbergella belongs to Ptychopariida - Sepkoski (2002)
• Palaeolenides belongs to Ptychopariida - Sepkoski (2002)
• Holasaphus belongs to Ptychopariida - Sepkoski (2002)
• Pruvostina belongs to Ptychopariida - Sepkoski (2002)
• Kabukiia belongs to Ptychopariida - Sepkoski (2002)
• Bigotina belongs to Ptychopariida - Sepkoski (2002)
• Didwudina belongs to Ptychopariida - Sepkoski (2002)
• Orloviella belongs to Ptychopariida - Sepkoski (2002)
• Henadoparia belongs to Ptychopariida - Sepkoski (2002)
• Propeltura belongs to Ptychopariida - Sepkoski (2002)
• Jiangjunshania belongs to Ptychopariida - Sepkoski (2002)
• Lonchocephalidae belongs to Ptychopariida - Whittington et al. (1997)
• Sagitaspis belongs to Ptychopariida - Sepkoski (2002)
• Luxella belongs to Ptychopariida - Sepkoski (2002)
• Acrodirotes belongs to Ptychopariida - Sepkoski (2002)
• Xianquianaspis belongs to Ptychopariida - Sepkoski (2002)
• Decus belongs to Ptychopariida - Sepkoski (2002)
• Olekmaspis belongs to Ptychopariida - Sepkoski (2002)
• Hartshillina belongs to Ptychopariida - Sepkoski (2002)
• Populsenella belongs to Ptychopariida - Sepkoski (2002)
• Luaspis belongs to Ptychopariida - Sepkoski (2002)
• Whittingtonella belongs to Ptychopariida - Sepkoski (2002)
• Berkutaspis belongs to Ptychopariida - Sepkoski (2002)
• Bifodina belongs to Ptychopariida - Robison and Pantoja- (1968)
• Tengfengiidae belongs to Ptychopariida - Lu and Zhu (2001)
• Estaingiidae belongs to Ptychopariida - Jell and Adrain (2003)
• Ityophoridae belongs to Ptychopariida - Jell and Adrain (2003)
• Ellipsocephaloididae belongs to Ptychopariida - Jell and Adrain (2003)
• Tricrepicephalidae belongs to Ptychopariida - Jell and Adrain (2003)
• Eulomidae belongs to Ptychopariida - Jell and Adrain (2003)
• Llanoaspididae belongs to Ptychopariida - Jell and Adrain (2003)
• Aldonaiidae belongs to Ptychopariida - Jell and Adrain (2003)
• Yunnanocephalidae belongs to Ptychopariida - Jell and Adrain (2003)
• Isocolidae belongs to Ptychopariida - Jell and Adrain (2003)
• Nepeidae belongs to Ptychopariida - Jell and Adrain (2003)
• Holocephalinidae belongs to Ptychopariida - Jell and Adrain (2003)
• Dokimocephalidae belongs to Ptychopariida - Jell and Adrain (2003)
• Bigotinidae belongs to Ptychopariida - Jell and Adrain (2003)
• Atopidae belongs to Ptychopariida - Jell and Adrain (2003)
• Palaeolenidae belongs to Ptychopariida - Jell and Adrain (2003)
• Antagmidae belongs to Ptychopariida - Jell and Adrain (2003)
• Utiidae belongs to Ptychopariida - Jell and Adrain (2003)
• Phylacteridae belongs to Ptychopariida - Jell and Adrain (2003)
• Conokephalinidae belongs to Ptychopariida - Jell and Adrain (2003)
• Changshaniidae belongs to Ptychopariida - Choi and Kim (2006)
• Mapaniidae belongs to Ptychopariida - Kang and Choi (2007)
• Solenopleuracea belongs to Ptychopariida - Landing et al. (2008)
• Ptychopariida belongs to Trilobita - Landing et al. (2008)
• Ptychopariina belongs to Ptychopariida - Pour and Popov (2009)