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Extinct genus of cartilaginous fish
also known. Based on this, it is believed that Ctenoptychius had a flattened, ray-like body. Ctenoptychius was named by naturalist Louis Agassiz in his
Ctenoptychius
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Protochimaera
Species of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Cape_elephantfish
Cartilaginous fish in the order Chimaeriformes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Chimaera
Genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Rhinochimaera
Extinct genus of vertebrates
unilateralis. It was initially described as the tooth of the petalodont genus Ctenoptychius or as a genus of edestid, although it more likely represents the copulatory
Euctenius
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Squaloraja
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Belantsea
Genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Callorhinchus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Acmoniodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Romerodus
Extinct genus of chimaera fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Ischyodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Helodus
Genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Neoharriotta
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Edestus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Harpagofututor
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Psammodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Helicoprion
Extinct group of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Eugeneodontiformes
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Sarcoprion
Genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Chimaera_(genus)
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Orodus
Genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Harriotta
Extinct order of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Menaspiformes
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Ptyktoptychion
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Echinochimaera
Extinct genus of cartilaginous fishes
northern rim of the Grand Canyon. It is probably closely related to Ctenoptychius. "Fossilworks: Megactenopetalus". fossilworks.org. Retrieved 2020-11-28
Megactenopetalus
Extinct order of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Iniopterygiformes
Family of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Rhinochimaeridae
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Parahelicoprion
Extinct family of holocephalan cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Chondrenchelyiformes
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Ornithoprion
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Chondrenchelys
Genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Hydrolagus
Extinct genus of chimaeriform fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Chimaeropsis
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Myriacanthus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Iniopteryx
Extinct family of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Helicoprionidae
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Caseodus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Fadenia
Family of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Chimaeridae
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Metopacanthus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Edaphodon
Extinct family of chimaeriform fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Myriacanthidae
Extinct order of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Orodontiformes
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Agassizodus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Strigilodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Desmiodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Debeerius
Extinct order of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Petalodontiformes
Zalmout, 2002 †Ctenopristis nougareti Arambourg, 1940 †Ctenoptychius Agassiz, 1838 †Ctenoptychius apicalis Agassiz, 1843 †Cyclobatis Egerton, 1844 †Cyclobatis
List of prehistoric cartilaginous fish genera
List_of_prehistoric_cartilaginous_fish_genera
Extinct genus of fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Kanodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Paredestus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Syntomodus
Extinct family of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Debeeriidae
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Janassa
Group of cartilaginous fish
thought to fall into four morphologies: Petalodus-type (incisor-like), Ctenoptychius-type (multi-cusped), Fissodus-type (bifurcated) and Janassa-type (molar-like)
Holocephali
Extinct order of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Cochliodontiformes
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Menaspis
Extinct family of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Copodontidae
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Erikodus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Sinohelicoprion
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Batillodus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Caseodontidae
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Petalodus
Extinct family of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Edestidae
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Campodus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Campyloprion
Extinct genus of cartilaginous fish
pectinatus Agassiz 1838 Synonyms Ageleodus diadema Owen 1867 Callopristodus pectinatus Ctenoptychius denticulatus Agassiz 1838 Ctenoptychius pectinatus
Ageleodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Heteropetalus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Macadens
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Polysentor
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Karpinskiprion
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Deltoptychius
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Eugeneodus
Geologic formation in Nova Scotia, Canada
Ageleodus A. pectinatus Ctenacanthus indeterminate Ctenodus C. plicatus Ctenoptychius C. cristatus Gyracanthus G. duplicatus Haplolepis H. cf. corrugata H
Joggins_Formation
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Chomatodus
Extinct family of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Gregoriidae
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Toxoprion
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Helicampodus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Sandalodus
Extinct Chimaera genus
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Amylodon
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Bealbonn
Extinct family of cartilaginous fishes
Newberry & Worthen, 1866 Genera †Ageleodus †Antliodus †Chomatodus †Ctenoptychius †Glyphanodus †Harpacodus †Lisogodus †Neopetalodus †Paracymatodus †Petalodus
Petalodontidae
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Lestrodus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Brachymylus
Genus of extinct shark-like fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Parahelicampodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Venustodus
Extinct genus of chimaeras
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Canadodus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Netsepoye
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Pirodus
Extinct species of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Siksika_ottae
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Harpacanthus
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Acanthorhina
British naturalist
Geologists' Association, 6 (8): 359–370 Davis, J.W. (1881) On the genera Ctenoptychius, Agassiz; Ctenopetalus, Agassiz; and Harpacodus, Agassiz. Annals and
James_William_Davis
Geologic formation in England
"C." costellatus Steeplehouse Quarry. Partial tooth. A ctenacanth. Ctenoptychius C. lobatus Steeplehouse Quarry. 3 teeth. A petalodont. Cypripediodens
Eyam_Limestone
Extinct family of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Eugeneodontidae
Extinct genus of cartilaginous fishes
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Antliodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Gilliodus
Extinct genus of cartilaginous fish
Peripristis Pristodus †Petalodontiformes sensu stricto Belantsea Calopodus? Ctenoptychius Davodus? Fissodus Glyphanodus? Peltodus Petalorhynchus Siksika Janassidae
Bobbodus
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