|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Reptilia - Ovaloolithidae
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|K. E. Mikhailov 1991||Angustispherulithic morphotype; pore system of mixed type, mainly rimocanaliculate + angusticanaliculate; sculptured surface: sagenotuberculate ornamentation (often variant 3), or smooth surface; ellipsoid - subspherical eggs; "thick" (>2 mm) and "medium" (>1 mm) eggshell.|