Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Superordo: Selachimorpha
Familia: †Ptychodontidae
Genera:
†Hemiptychodus –
†Heteroptychodus –.
†Hylaeobatis –
†Paraptychodus –
†Ptychodus
Name
Ptychodontidae Jaekel, 1898
References
- Jaekel, O., 1898: Ueber Hybodus. Sitzungsberichte der Gesellschaft naturforschender Freunde zu Berlin, 1898: 135–143, 3 fig.
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