Trigonotodus
ver. 1.0
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| Order Lamniformes Berg, 1958 |
| Family Alopiidae Bonaparte, 1838 |
| Genus Trigonotodus Kozlov, 1999 |
| Trigonotodus tusbairicus Kozlov 1999: Eocene (Bartonian), Kert, North Mangyshlak, W. Kazakhstan |
| Trigonotodus aktulagaicus Kozlov 1999: Eocene (Ypressian), Tolagaysor Formation (Guriev Region), Akutulagai, N.W. Kazakhstan |
| Ref. 1) Elasmobranchii and Palaeogene Biostratigraphy of Trans Urals and
Central Asia, Materials on Stratigraphy and Paleontology of the Urals vol.
3, 1999: Russian Academy of Sciences Urals Branch Victor I. ZHELEZKO, Vladimir A. KOZLOV |
| Ref. 2) Materials on stratigraphy and paleontology of the Urals vol. 4,
2000: Russian Academy of Sciences Urals Branch |
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20110929 Fumio Nakagawa