Spheroolithus

Spheroolithus is an oogenus of dinosaur egg.

Oospecies
The following species are described:
 * Paraspheroolithus sanwangbacunensis
 * Paraspheroolithus yangchengensis
 * Spheroolithus albertensis
 * Spheroolithus choteauensis
 * Spheroolithus europaeus
 * Spheroolithus irenensis
 * Spheroolithus jincunensis
 * Spheroolithus maiasauroides
 * Spheroolithus megadermus
 * Spheroolithus spheroides
 * Spheroolithus tenuicorticus

Distribution
Fossils of the oogenus were found in:
 * Dinosaur Park and Oldman Formations, Alberta, Canada
 * China
 * Sasayama Group, Japan
 * Cerro del Pueblo Formation (Difunta Group), Mexico
 * Nemegt & Bayan Shireh Formations, Mongolia
 * La Posa Formation (Tremp Group), Spain
 * Two Medicine Formation, Montana and North Horn Formation, Utah, United States
 * Lameta Formation, India