| Acrodus lateralis AGASSIZ, 1837/ Acrodus levis: a; Middle Cretaceous (Cenomanian), Egindy-Say, Guriev region, W. Kazakhstan b: Upper Triassic, Muschelkalk F., Heming, near Sarrebourg, France |
| a: 24.8 mm W, b: 10.5 mm W 20040203 |
| Acrodus nobilis AGASSIZ, 1839: Lower Jurassic, Lyme Regis, England |
| 37.6 mm W 20040203 |
Asteracanthus
ver. 1.1
| Order Hybodontiformes ZANGERL, 1981 |
| Family Acrodontidae CASIER, 1959 |
| Genus Asteracanthus AGASSIZ, 1837 |
| Asteracanthus sp.: Upper Jurassic, Purpeck Beds, Purpeck, Dorset, England |
| 20110821 |
Hybodus
ver. 1.0
| Order Hybodontiformes ZANGERL, 1981 |
| Family Hybodontidae OWEN, 1846 |
| Genus Hybodus AGASSIZ, 1837 |
| a, Hybodus plicatiliss AGASSIZ, 1843: Upper Traassic, Muschelkalk Formation,Heming, near Sarrebourg, France b, Hybodus sp.: Lower Lias Lyme Regis, England |
| a: 6.8 mm W, b: 21.5 mm W 20040203 |
Lissodus
ver. 1.0
| Order Hybodontiformes ZANGERL, 1981 |
| Family Polyacrodontidae GLÜCKMAN, 1964 |
| Genus Lissodus BROUGH, 1935 |
| Lissodus minimus (AGASSIZ, 1939)/ Polyacrodus minimus: Bathonian (Middle Jurassic), Sharps Hill Formation, Ditchley Road Quarry, Charlbury, Oxfordshire, England |
| 10 mm W |
Lonchidion
ver. 1.0
| Order Hybodontiformes ZANGERL, 1981 |
| Family Lonchidiidae HERMAN, 1977 |
| Genus Lonchidion ESTES, 1964 |
| Lonchidion selachos ESTES, 1964: Maarstrichtian/Danian, Dinasaur Beds, Hell Creek Formation. Harding Co. S.D. |
| 4.8 mm W 20110901 |
Polyacrodus
ver. 1.0
| Order Hybodontiformes ZANGERL, 1981 |
| Family Polyacrodontidae GLÜCKMAN, 1964 |
| Genus Polyacrodus JAEKEL, 1889 |
| a, Polyacrodus torosus: Middle Cretaceous (Upper Albian), Kobay, E. Mangyshlak Penninsula, W. Kazakhstan b, Polyacrodus sp.: Lower Cretaceous (Albian), Stary Oskol, Belgorod region |
| a1: 19.5 mm W, a2: 9.2 mm W, b: 26 mm W 20040203 |
"Hybodus" minor & Romphaiodon nicolensis
| "Hybodus" minor AGASSIZ, 1837: Lower Cretaceous, Hastings Beds, Ashdown Sands, Hastings, Sussexs, England |
| 3 mm W |
| Romphaiodon nicolensis: Upper Triassic (Rhaetian), Saint Nicholas de la Port, France |
| a: 2.1 mm H, b: 2.4 mm H |
| Ref., Guillaume Guinot and Henri Cappetta, Microscopy Research and Technique Volume 74, Issue 2, pages 196-205, February 2011 |
Back & Forth
20120701