Trigonotodus
ver. 1.0
| Order Lamniformes BERG, 1958 |
| Family Alopiidae BONAPARTE, 1838 |
| Genus Trigonotodus KOZLOV, 1999 |
| 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 |