First ovum-in-ovo pathological titanosaurid egg throws light on the reproductive biology of sauropod dinosaurs
Abstract Pathologic eggs have been documented in the amniote eggs of birds, turtles, and dinosaurs.These eggs occur either in the form of one egg within another egg, a condition known as ovum-in-ovo or multi-shelled eggs showing additional pathological eggshell layer/s besides the primary shell layer.Though multi-shelled eggs and eggshells were pre