Family uncertain Genus Arauzia♀ MADER 1985 アラウジア属 (絶滅)
◆アラウジア・フェデリコイ (絶滅) Arauzia federicoi Mader 1985 *1985『Schuppen und Zähne von Acanthodiern und Elasmobranchiern aus dem Unter-Devon Spaniens Pisces:Hermann Mader』。
Family uncertain Genus Dracopristis♀ HODNETT, GROGAN, LUND, LUCAS, SUAZO, ELLIOTT & PRUITT 2021 ドラコプリスティス属 (絶滅)
◆ドラコプリスティス・ホッフマノラ (絶滅) Dracopristis hoffmanora Hodnett, Grogan, Lund, Lucas, Suazo, Elliott & Pruitt 2021 *2014『Monster of the Manzanos is New Species of Shark:Charles D.Brunt』。 *2021『Ctenacanthiform Sharks from the Late Pennsylvanian, Missourian Tinajas Member of the Atrasado Formation, Central New Mexico:John-Paul Michael Hodnett, Eileen D.Grogan, Richard Lund, Spencer George Lucas, Tom Suazo, David K.Elliott & Jesse Pruitt』。
"Godzilla Shark"
メキシコ。口が裂けたネコザメの印象。
Family uncertain Genus Ertychius♂ GINTER, HAIRAPETIAN & GRIGORYAN 2011 エルティキウス属 (絶滅)
◆エルティキウス・インテルメディウス (絶滅) Ertychius intermedius Ginter, Hairapetian & Grigoryan 2011 *2011『Euselachian Sharks from the Late Carboniferous of the Puertollano Basin, Spain:Michał Ginter, Vachik Hairapetian & Araik Grigoryan』。
Family uncertain Genus Glencartius♂ GINTER & SKOMPSKI 2019 グレンカルティウス属 (絶滅)
◆グレンカルティウス・コステルラトゥス (絶滅) Glencartius costellatus (Traquair 1884) Ginter & Skompski 2019
syn.Cheiracanthus costellatus (Traquair 1884) Traquair 1893 Ctenacanthus costellatus Traquair 1884 Sphenacanthus costellatus (Traquair 1884) *1879『Das Naturliche System der Elasmobranchier auf Grundlage des Baues und der Entwicklung ihrer Wirbelsaule, Eine Morphologische und Palaontologische Studie:Karl Hasse』。 *1884『Description of a Fossil Shark Ctenacanthus costellatus from the Lower Carboniferous Rocks of Eskdale, Dumfriesshire:Ramsay Heatley Traquair』。 *1889『Catalogue of the Fossil Fishes in the British Museum Natural History 1, Containing the Elasmobranchii:Arthur Smith Woodward』。 *1893『Notes on the Devonian Fishes of Campbellton and Scaumenac Bay in Canada 2:Ramsay Heatley Traquair』。 *1902『Bibliography and Catalogue of the Fossil Vertebrata of North America 1901:Oliver Perry Hay』。 *2017『The Shark-Beds of the Eyam Limestone Formation, Lower Carboniferous, Visean of Steeplehouse Quarry, Wirksworth, Derbyshire, UK:Roy Smith, David Michael Martill & Christopher John Duffin』。 *2019『The Squamation of Ctenacanthus costellatus [Chondrichthyes, Ctenacanthiformes] from the Carboniferous of Lublin Area, South-Eastern Poland:Michał Ginter & Stanisław Skompski』。 *2020『Pennsylvanian Brachiopod, Fish and Conodont Faunas from the Caliza Masiva, San Emiliano Formation at the Mina Profunda Area, Cantabrian Zone, North-West Spain:』。
「Prof.Hasse has indicated his belief that, in the Palæozoic Selachii, the notochord was persistent and the vertebral sheath (Wirbelkörperanlage) unsegmented, or at most provided with weak ring-shaped calcifications.」。
Family uncertain Genus Junggarensis♀ ROELOFS, KÖNIGSHOF, TRINAJSTIC & MUNKHJARGAL 2021 ユンッガレンシス属 (絶滅)
◆ユンッガレンシス・アムビグア (絶滅) Junggarensis ambigua Roelofs, Königshof, Trinajstic & Munkhjargal 2021 *2021『Vertebrate Microremains from the Late Devonian, Famennian of Western Mongolia:Brett Roelofs, Peter Königshof, Kate Trinajstic & Ariuntogos Munkhjargal』。
Family uncertain Genus Kaibabvenator♂ HODNETT, ELLIOTT, OLSON & WITTKE 2012 カイバブウェナトル属 (絶滅)
◆カイバブウェナトル・スウィフタエ (絶滅) Kaibabvenator swiftae Hodnett, Elliott, Olson & Wittke 2012 *2012『Ctenacanthiform Sharks from the Permian Kaibab Formation, Northern Arizona:John-Paul Michael Hodnett, David K.Elliott, Tom J.Olson & James H.Wittke』。
Family uncertain Genus Lesnilomia♀ GINTER 2008 レスニロミア属 (絶滅)
Family uncertain Genus Nanoskalme♀ HODNETT, ELLIOTT, OLSON & WITTKE 2012 ナノスカルメ属 (絶滅)
◆ナノスカルメ・ナタンス (絶滅) Nanoskalme natans Hodnett, Elliott, Olson & Wittke 2012 *2012『Ctenacanthiform Sharks from the Permian Kaibab Formation, Northern Arizona:John-Paul Michael Hodnett, David K.Elliott, Tom J.Olson & James H.Wittke』。
Family uncertain Genus Glencartius♀ LEBEDEVex LEBEDEV, IVANOV & LINKEVICH 2020 スクルプトスピナ属 (絶滅)
◆スクルプトスピナ・マクーラエウィ (絶滅) Sculptospina makhlaevi Lebedevex Lebedev, Ivanov & Linkevich 2020 *2020『Chondrichthyan Spines from the Famennian, Upper Devonian of Russia:Oleg A.Lebedev, Alexander O.Ivanov & Valeriy V.Linkevich』。
Family uncertain Genus Turnovichthys♂ ŠTAMBERG 2001 トゥルノウィクティス属 (絶滅)
◆トゥルノウィクティス・マグヌス (絶滅) Turnovichthys magnus Štamberg 2001 *2001『Fin Spine of a Ctenacanthoid Shark [Elasmobranchii, Ctenacanthoidea] from the Upper Stephanian of the Krkonoše Piedmont Basin, Bohemia:Stanislav Štamberg』。