Prismatoolithidae

{{Oobox

| fossil_range = {{fossil range|99.6|65|Late Cretaceous}}

| taxon = Prismatoolithidae

| image = Prismatoolithus IVPP.jpg

| image_caption = Prismatoolithus tiantaiensis eggs, Paleozoological Museum of China

| authority = Hirsch, 1994

| subdivision_ranks = Oogenera

| subdivision =

• Preprismatoolithus
• Prismatoolithus
• Protoceratopsidovum
• SankofaN. López-Martínez and E. Vicens. 2012. A new peculiar dinosaur egg, Sankofa pyrenaica oogen. nov. oosp. nov. from the Upper Cretaceous coastal deposits of the Aren Formation, South-Central Pyrenees, Lleida, Catalonia, Spin. Palaeontology 55(2):325-339
• SpheruprismatoolithusE. S. Bray. 1999. Eggs and eggshell from the Upper Cretaceous North Horn Formation, central Utah. In D. D. Gillette (ed.), Vertebrate Paleontology in Utah, Utah Geological Survey Miscellaneous Publication 99-1:361-375
• Trigonoolithus{{cite journal

| last1 = Moreno-Azanza | first1 = M.

| last2 = Canudo | first2 = J.I.

| last3 = Gasca | first3 = J.M.

| title = Unusual theropod eggshells from the Early Cretaceous Blesa Formation of the Iberian Range, Spain

| url = https://www.app.pan.pl/archive/published/app59/app20120069.pdf

| journal = Acta Palaeontologica Polonica

| volume = 59

| issue = 4

| pages = 843–854

| date = 2014

}}

}}

Prismatoolithidae is an oofamily of fossil eggs. They may have been laid by ornithopods or theropods.{{cite journal |author=Konstantin E. Mikhailov, Emily S. Bray & Karl E. Hirsch |year=1996 |title=Parataxonomy of fossil egg remains (Veterovata): basic principles and applications |journal=Journal of Vertebrate Paleontology |volume=16 |issue=4 |pages=763–769 |doi=10.1080/02724634.1996.10011364 |jstor=4523773}}