Macroelongatoolithus is an oogenus of large theropod dinosaur eggs, representing the eggs of giant caenagnathid oviraptorosaurs. They are known from Asia and from North America. Historically, several
Macroelongatoolithus nest (MNHM-nat201153) from Aphaedo Island, South Korea
Eggshell surface (a) and microstructure (b) of Macroelongatoolithus eggs associated with Beibeilong
Oviraptoridae is a group of bird-like, herbivorous or omnivorous maniraptoran dinosaurs. Oviraptorids are characterized by their toothless, parrot-like beaks and, in some cases, elaborate crests. They
Skull of Oksoko
Oviraptorid profiles
Skull of Nemegtomaia, featuring deep lower jaws and a large palatal region