The dinosaur mother came first. Both the dinosaur mother and father were needed to produce the egg where the dinosaur baby came from.
The dinosaur egg always comes first. Every dinosaur starts is life as an egg. It is like asking what comes first birth, childhood, adulthood, middle age or death.
Egg
In a study conducted by the University of Arizona, the chicken came first. They discovered that our modern day chicken came from the dinosaurs, and not all dinosaurs laid eggs. Said dinosaur gave live birth, but after whatever catastrophic event made them extinct, the species adapted and evolved to lay eggs (to protect their off-spring). So the dinosaur adapted and evolved to an egg-laying mammal, and that animal evolved into a chicken. Then the chicken laid the egg. So technically, the dinosaur came first, but that's not an option. So it was the chicken that came first.
The egg, of course. Since chickens evolved from dinosaurs, the chicken would have had to have been an offspring of a dinosaur and, therefore, come from an egg.
Obviously the egg, it did not say an alligator egg it simply states an egg. Therefore a dinosaur egg or any other species of eggs could have come before the alligator.
first don't you mean CHICKEN? and the egg did dino's where laying eggs -4 chickens where
a dinosaur egg is a egg that dinosaurs make
dinosaurs
dinosaurs
"Which came first, the chicken or the egg?" is a famous riddle that has no answer.
Big dinosaur, big egg. Small dinosaur, small egg.