| Ashorocetus/sandbox/Spheroolithidae Temporal range:
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|---|---|
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| Spheroolithus eggs from China | |
Egg fossil classification 
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| Basic shell type: | †Dinosauroid-spherulitic |
| Oofamily: | †Spheroolithidae |
Spheroolithidae is an oofamily of fossil dinosaur eggs.
Description
editSpheroolithids are usually medium to large in size. As their name suggests, they are usually roughly spherical, though they can be up to 30% longer than their width. They can often be difficult to classify, because egg shape can vary within a single clutch, and eggshell thickness can vary significantly in a single egg.[1]
History
editThe oofamily was first named by Zhao Zikui in 1979, at which time he included three oogenera in it: Spheroolithus, Paraspheroolithus, and Ovaloolithus.[2]
- ^ Cite error: The named reference
Mikhailov 1997was invoked but never defined (see the help page). - ^ Zhao, Zikui (1979). "Progress in the Research of Dinosaur Eggs". Mesozoic and Cenozoic Red Beds of South China (in Chinese). Science Press. pp. 330–340.
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