Spheroolithidae | |
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Spheroolithus eggs from China | |
Egg fossil classification ![]() | |
Basic shell type: | † Dinosauroid-spherulitic |
Oofamily: | † Spheroolithidae |
Oogenera | |
Spheroolithidae is an oofamily of dinosaur eggs. It contains Guegoolithus , Spheroolithus , and Paraspheroolithus . [1] Like modern birds, the eggshell membrane formed before the calcareous part of the shell. [2]