In the Archean eon, precambrian era because the first prokaryote appeared around 3.5 billion years ago.
Simple prokaryotes emerged around a billion year ago.
In the Cretaceous period.
it occurs in the precambrian period.
In the Cretaceous period.
In the beginning of the world they were flightiness.
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...
Multicellular organisms first appeared during the Vendian period.
No no no the first shark appeared in the jurassic period.