Oolithes is an oogenus with uncertain affinities. It has historical significance because it was the earliest named oogenus. James Buckman described the first named species as Oolithes bathonicae in a communication to the 4 May 1859 meeting of the Geological Society (published in 1860). Buckman believed that Oolithes represented the eggs of a teleosaurian reptile.[1]
| Oolithes | |
|---|---|
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| Oolithes spheroides | |
Egg fossil classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Oogenus: | †Oolithes Buckman, 1860 |
| Oospecies | |
| |
Since Buckman's description of O. bathonicae, two other oospecies have been named: O. nanhsiungensis and O. spheroides, both of which were native to the Maastrichtian of China.[2][3]