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Hybodontoids
Superfamily Hybodontoidea Zangerl 1981
ver. 1.0

Family Hybodontidae Owen 1846
Hybodus Agassiz 1837
Family Acrodontidae Casier 1959
Acrodus Agassiz 1837
Asteracanthus Agassiz 1837
Family Polyacrodontidaem Glückman 1964
Lissodus Brough 1935
Polyacrodus Jaekel 1889
Family Ptychodontidae Jaekel 1898B
Ptychodus Agassiz 1838

Triassic




6.8 mm W

Hybodus plicatiliss
210 M, Upper Traassic
 Muschelkalk Formation
Heming, near Sarrebourg, France



A B C
10.5 mm W, 6.0 mm W, 4. 8 mm W

A; Acrodus lateralis, B, C; Acrodus sp.
210 M, Upper Triassic
Muschelkalk Formation
Heming, near Sarrebourg, France



5.4 mm W

 Acrodus sp.
210 M, Upper Triassic
Bone Bed Layer, Carlsheim, Germany




4.0 mm W
? Acrodontid
 from fresh water sediments
222 - 215 M, Upper Triassic
Bull Canyon Formation, San Miguel County, New Mexico, U.S.A.



3.6 mm W

Lissodus minimus
204 M, Upper Triassic (Rhatian)
Formation unknown
Saint Nicholas de la Prt, France

Jurassic



21.5 mm W

Hybodus sp.
Lower Lias



37.6 mm W

Acrodus nobilis
Lower Jurassic
 Lyme Regis, England



36.4 mm W

15.2 mm W

Asteracanthus sp.
Upper Jurassic
Purpeck Beds, Purpeck, Dorset, England

Dentition of Asteracanthus smithwoodwardi (Unterkiefer)
Redrawn from Bernhard Peyer, 1964

Cretaceous


3 mm W

Hybodus minor
Lower Cretaceous
Hastings Beds, Ashdown Sands
Hastings, Sussexs, England


24.8 mm W

Acrodus levis
95 M, Middle Cretaceous (Cenomanian)
Egindy-Say, Guriev region
W. Kazakhstan



9.0 mm W

Asteracanthus ex gr. ornatissimus
138 M, Cretaceous (Valanginin)
 Kosbulak, Mangyshlak Peninsula
W. Kazakhstan



9.2 mm W, 19.5 mm W

Polyacrodus torosus
100 M, Middle Cretaceous (u. Albian)
Kobay, E. Mangyshlak Penninsula
W. Kazakhstan


26 mm W

Polyacrodus sp.
Lower Cretaceous (Albian)
Stary Oskol
Belgorod region

See
Ptychodon‚”s

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