The Permian.
permian period
Carboniferous Silurian Ordovician Devonian Cambrian Pre Cambrian
Triassic came before
Yes. all the PROSAUROPODS lived in the triassic period. PRO means before, SAUROPOD means long necked dinosaurs that lived in the JURASSIC and CRETACEOUS. PROSAUROPODS, on the other hand, lived in the TRIASSIC.
yes the first dinos appeared 230mya during the late triassic period
That is easy, the first is precambrian time, next you get the paleozoic era, which has Cambrian, ordovician, silurian, denovonian, carbonferious periods, Next you get the mesozoic era which contains the next three, which are triassic, jurrasic, and cretacous periods. Lasty you get the Cenozoic era which contains the last two which are the tertiary, and the quaternary!
Panthalassa means "all seas." It was the all the world's oceans that surrounded Pangaea before the continental drift occurred in the triassic period.
the first dinos appeared 230mya during the late triassic period so it was well before the dinos time : )
The first mammals appeared in the Triassic Period of the Mesozoic Era, when dinosaurs had already been present for at least 9 million years.
The Permian period extends from 298.9 to 252.17 million years ago. it followed the Paleozoic period and came before the Triassic period. The climate at the time was very dry thanks to the destruction of rainforests. At the beginning of the Permian period, the Earth was still very cold but gradually warmed throughout the years.
Mammals came before birds. The first mammals lived in the Triassic and the first birds lived in the Jurassic.