Why doesn't he want to be a Parasaurolophus?

Also, here's some more (sorry if you already said some of these)

Doesn't want to be a Tyrannosaurus rex

Hatches and finds out he's a Tarbosaurus

Doesn't want to be a Giganotosaurus

Hatches and finds out he's a Mapusaurus

Doesn't want to be a Triceratops

Hatches and finds out he's a Torosaurus

Doesn't want to be a Woolly Mammoth

Is born and realizes he's an American Mastodon

God please not dimetrodon or mosasaurus

Mother what am i?

Spinosaurus

Please god, not Ankylosaurus or Troodon

Mother, what am I?

TARCHIA

God, please a T.rex or a Suchomimus

Mother, what am I?

Acrocanthosaurus

Please not Rajasaurus

Mother, what am I?

MAJUNGASAURUS

God, please not zhuchengtyrannus or tyrannosaurus

Mother, what am i?

TARBOSAURUS

#2

God, please not diplodocus or seismosaurus

Mother, what am i?

A SUPERSAURUS

They're super at least

Euparkeria please not an allosaurid

"Mom what is my nickname?"

Your nickname is Epanterias sweetie

God, please not lesothosaurus or microceratus

Mother, what am i?

A PSITTACOSAURUS