“This study demonstrates that eggshell biocalcite from non-avian dinosaurs, birds, and other egg-laying vertebrates has the ...

I began by sketching in Photoshop with large, textured brushes, focusing on clear shapes and composition rather than details.

The paper, published recently in PLOS One, describes an investigation of 112 ostrich eggshell fragments dating back more than 60,000 years from three archaeological sites in southern Africa. These ...