Tissotiidae
| Tissotiidae Temporal range: U Cretaceous Turonian- Lower Santonian. | |
|---|---|
| Fossil of Tissotia species from Wawat in the Sudanese Nubian Desert | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Superfamily: | †Acanthoceratoidea |
| Family: | †Tissotiidae Hyatt, 1900 |
Tissotiidae is a family of ammonites (Ammonitina) belonging to the Acanthoceratoidea.
The Tissotiidae are derived from the Vascoceratidae, another acanthoceratoid family, and gave rise to the Coilopoceratidae. They have been divided into two subfamilies, the earlier and more primitive Pseudotissotiinae and the more advanced and later Tissotiinae, which differ only in the details of the suture. (ibid)