Palaeontology: pterosaur egg with a leathery shell.
The recent discovery of a pterosaur egg with embryonic skeleton and soft tissues from the Yixian Formation confirmed that the flying pterosaurs were oviparous. Here we describe another pterosaur egg whose exquisite preservation indicates that the shell structure was soft and leathery.
Ji
Qiang
Q
Department of Earth Sciences, Nanjing University, Nanjing 210093, China.
Ji
Shu-An
SA
Cheng
Yen-Nien
YN
You
Hai-Lu
HL
Lü
Jun-Chang
JC
Liu
Yong-Qing
YQ
Yuan
Chong-Xi
CX
D000818:Animals; D001842:Bone and Bones / Q000033:anatomy & histology; D002681:China; D025061:Dinosaurs / Q000033:anatomy & histology* / Q000196:embryology*; D004528:Egg Shell / Q000033:anatomy & histology* / Q000737:chemistry*; D004625:Embryo, Nonmammalian / Q000033:anatomy & histology* / Q000196:embryology*; D005580:Fossils; D049690:History, Ancient; D014921:Wings, Animal / Q000033:anatomy & histology