they first appear in prrmian period
In the Cretaceous period.
Mammals came before birds. The first mammals lived in the Triassic and the first birds lived in the Jurassic.
Dinosaurs first apeared in the triassic period
the first bird to come to earth was about 160 million years ago. this is by faith bradford *by G1N4* to be more precise it was the Mezozoic era and the Jurassic period.
In the Cretaceous period.
it occurs in the precambrian period.
the coelophysis
No. Answer No, flowering plants (angiosperms) first appeared (as far as we know) in the Cretaceous period.
Humans first appeared during the Quanternary Period which includes the Pleistocene and Holocene epochs.
Humans first appeared during the Quanternary Period which includes the Pleistocene and Holocene epochs.
Actually they were from the Pennsylvanian Period and the Paleozoic Era...