Daptinus is an extinct genus of ichthyodectid fishes within the subfamily Saurodontinae, from the Late Cretaceous (Coniacian-Campanian) Niobrara Formation of Alabama, that was originally named as a species of Saurocephalus (S. phlebotomus) in 1870 by Edward Drinker Cope, but was moved to a separate genus in 1873. Subsequent authors listed Daptinus as a tentative, possible synonym of Saurocephalus. The holotype, which is probably the only known specimen discovered to date, is listed as containing vertebrae (?) and portions of the cranium, the latter including the dentary, maxilla and palate.
- Cope, E. D. (1870). On the Saurodontidæ. Proceedings of the American Philosophical Society 11:529-538
- IRMNG (2021). Daptinus Cope, 1873 †. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=1391000 on 2021-01-14
- Cope, E. D. (1873). On two new species of Saurodontidae. Proceedings of the Academy of Natural Sciences of Philadelphia 25:2-339
- E. D. Cope. (1874). Review of the Vertebrata of the Cretaceous Period found west of the Mississippi River. Bulletin of the United States Geological and Geographical Survey of the Territories, First Series 2:3-48
- O. P. Hay. (1902). Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey 179:1-868