Full reference: E. S. Bray. 1999. Eggs and eggshell from the Upper Cretaceous North Horn Formation, central Utah. Vertebrate Paleontology in Utah, Utah Geological Survey Miscellaneous Publication 99-1:361-375
Sister taxa: Continuoolithus, Ellipsoolithus, Elongatoolithus, Heishanoolithus, Macroelongatoolithus, Macroolithus, Nanhsiungoolithus, Paraelongatoolithus, Porituberoolithus, Trachoolithus, Undulatoolithus
Subtaxa: Spongioolithus hirschi
Type: Spongioolithus hirschi
Ecology: ground dwelling carnivore
• Cretaceous of United States (6: Utah collections)
Total: 6 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.