Semionotiformes
| Semionotiformes Temporal range: Late Permian-Late Cretaceous | |
|---|---|
 | |
| Scheenstia maximus from the Solnhofen Limestone, in South Germany | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| (unranked): | Actinopteri |
| Subclass: | Neopterygii |
| Order: | †Semionotiformes |
| Families | |
| |
Semionotiformes ("flag-back form") is an order of primitive, ray-finned, primarily freshwater fish from the Triassic to the Cretaceous. The most well-known genus is Semionotus of Europe and North America.
Timeline of genera
References
- Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology 364: p.560. Retrieved 2011-05-17.