Prismatoolithus
| Prismatoolithus | |
|---|---|
| Prismatoolithus tiantaiensis eggs, Paleozoological Museum of China | |
| Egg fossil classification | |
| Basic shell type: | †Dinosauroid-prismatic |
| Oofamily: | †Prismatoolithidae |
| Oogenus: | †Prismatoolithus |
| Oospecies | |
| |
Prismatoolithus is an oogenus of dinosaur egg from the Cretaceous (Hauterivian-Maastrichtian) and possibly also the earliest Paleocene. They likely belonged to troodontids.