Ornitholithus

Eggs

Shell fragments of huge eggs have turned up in Late Paleocene deposits of Spain and early Eocene deposits of France, namely in Provence. These were described as the ootaxonOrnitholithus and are presumably from Gastornis. While no direct association exists between Ornitholithus and Gastornis fossils, no other birds of sufficient size are known from that time and place; while the large Diogenornis and Eremopezus are known from the Eocene, the former lived in South America (still separated from North America by the Tethys Ocean then) and the latter is only known from the Late Eocene of North Africa, which also was separated by an (albeit less wide) stretch of the Tethys Ocean from Europe.