Prismatoolithidae
Temporal range: Late Cretaceous
Prismatoolithus tiantaiensis eggs, Paleozoological Museum of China
Egg fossil classification Edit this classification
Basic shell type: Dinosauroid-prismatic
Oofamily: Prismatoolithidae
Hirsch, 1994
Oogenera

Prismatoolithidae is an oofamily of fossil eggs. They may have been laid by ornithopods or theropods.[4][1]

References

edit
  1. ^ a b N. 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
  2. ^ E. 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
  3. ^ Moreno-Azanza, M.; Canudo, J.I.; Gasca, J.M. (2014). "Unusual theropod eggshells from the Early Cretaceous Blesa Formation of the Iberian Range, Spain" (PDF). Acta Palaeontologica Polonica. 59 (4): 843–854. Bibcode:2014AcPaP..59..843M. doi:10.4202/app.2012.0069.
  4. ^ Konstantin E. Mikhailov, Emily S. Bray & Karl E. Hirsch (1996). "Parataxonomy of fossil egg remains (Veterovata): basic principles and applications". Journal of Vertebrate Paleontology. 16 (4): 763–769. doi:10.1080/02724634.1996.10011364. JSTOR 4523773.


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Egg fossil

Oofamily Arriagadoolithidae Arriagadoolithus Triprismatoolithus Oofamily Prismatoolithidae Preprismatoolithus Prismatoolithus Protoceratopsidovum Sankofa Spheruprismatoolithus

Ilseongsan Formation

Aphaedo Albian to Cenomanian Eggshells Likely laid by therizinosaur Prismatoolithidae Indeterminate Aphaedo Albian to Cenomanian Eggshells Likely laid by

Prismatoolithus

classification Basic shell type: †Dinosauroid-prismatic Oofamily: †Prismatoolithidae Oogenus: †Prismatoolithus Oospecies P. caboti P. gebiensis P. hanshuiensis

Almas ukhaa

subadult individual. Near the skeleton egg shells have been found of the Prismatoolithidae type. Such eggs have earlier been referred to Troodontidae. 2017 in

Trigonoolithus

a squamatic texture and the prismatic structure characteristic of Prismatoolithidae. It is three to four times thicker than the innermost layer (the mammillary

Sankofa (oogenus)

different. Parataxonomically, Sankofa is classified in the oofamily Prismatoolithidae, because of its microstructure. Cladistic analysis found Sankofa to

Elongatoolithus

oospecies originally described as Elongatoolithus in fact belong to Prismatoolithidae: "E." chichengshanensis, "E." chimeiensis, "E." jiangchangensis, and

Protoceratopsidovum

pairs. The eggs of Protoceratopsidovum are classified in the oofamily Prismatoolithidae. They were originally thought to be eggs of Protoceratops (hence the