References
- Dinosaurs to Dodos: An Encyclopedia of Extinct Animals by Don Lessem and Jan Sovak
 | This article about a prehistoric invertebrate is a stub. You can help Wikipedia by expanding it. |
| Isograptus | |
|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Family: | |
| Genus: | Isograptus |
Isograptus is an extinct genus of graptolites from the Ordovician.
| | This article about a prehistoric invertebrate is a stub. You can help Wikipedia by expanding it. |