Eggshell Porosity Provides Insight on Evolution of Nesting in Dinosaurs
Fig 3
Bivariate plot of eggshell porosity and egg mass in both living and extinct archosaur taxa/ootaxa.
Titanosaurs and Lourinhanosaurus show high eggshell porosity, comparable to living species with covered nests. In contrast, oviraptorosaurs, Troodon, and moas show lower eggshell porosity, similar to species with open nests.