Prismatoolithus

Prismatoolithus
Temporal range: Hauterivian-Maastrichtian
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Prismatoolithus tiantaiensis eggs, Paleozoological Museum of China
Egg fossil classification
Basic shell type: Dinosauroid-prismatic
Oofamily: Prismatoolithidae
Oogenus: Prismatoolithus
Oospecies
  • P. caboti
  • P. gebiensis
  • P. hanshuiensis
  • P. heyuanensis
  • P. hirschi
  • P. hukouensis
  • P. ilekensis
  • P. jenseni
  • P. levis
  • P. matellensis
  • P. tenuis
  • P. tiantaiensis
  • P. trempii

Prismatoolithus is an oogenus of dinosaur egg from the Cretaceous (Hauterivian-Maastrichtian) and possibly also the earliest Paleocene. They likely belonged to troodontids.