| Prismatoolithus Temporal range: Late Cretaceous |
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|---|---|
| Eggshell classification | |
| Oosupercohort: | †Dinosauriovum |
| Oocohort: | Theropoda |
| Basic shell type: | †Dinosauroid-prismatic |
| Oofamily: | †Prismatoolithidae |
| Oogenus: | †Prismatoolithus |
Prismatoolithus is an oogenus of dinosaur egg.