Externí odkaz - taxony
| Hybodus † BIOLIB: Agassiz, 1837 | |
| Acrodus giedroyci Dalinkevicius, 1935 † | |
| Ptychodus polygyrus Agassiz, 1839 † | |
| Ptychodus decurrens Agassiz, 1835 † | |
Ptychodus latissimus Agassiz, 1843 †  | |
| Ptychodus anonymus Williston, 1900 † | |
| Ptychodus mammillaris Agassiz, 1835 † | |
| Ptychodus occidentalis Leidy, 1868 † | |
| Hexanchus - žralok BIOLIB: Rafinesque, 1810 | |
| Heterodontus - různozubec BIOLIB: Blainville, 1816 | |
| Scapanorhynchus raphiodon (Agassiz, 1843) † | |
| Cretodus crassidens (Dixon, 1850) = Cretodus semiplicatus (Münster in Agassiz, 1843) † | |
| Cretodus semiplicatus (Münster in Agassiz, 1843) † | |
| Cretoxyrhina mantelli (Agassiz, 1843) † | |
| Cretolamna appendiculata (Agassiz, 1843) = Cretalamna appendiculata (Agassiz, 1843) † | |
| Paranomotodon angustidens (Reuss, 1845) † | |
| Squalicorax falcatus (Agassiz, 1843) † | |
| Ptychotrygon † BIOLIB: Jaekel, 1894 |