0
No, the first vertebrates evolved long before the Mesozoic. The first vertebrates, small jawless fish, evolved around 520 million years ago. Land animals had even evolved long before the Mesozoic Era.
Wiki User
∙ 10y ago
Wiki User
∙ 16y agothe paleontogists believe that cathaymyrus was the first appear in the eon(on earth)
Wiki User
∙ 14y agoThe fossil records indicate that the first vertebrates appeared during the Ordovician period--the jawless fishes in the class Agnatha.
Wiki User
∙ 12y agoIt was in the precambrian era.
Add your answer:
Earn +20 pts
Did the first vertebrates evolve during the mesozoic era?
No. The 1st vertebrates appeared in the fossil record about 525 million years ago during the Cambrian Period. This was in the Paleozoic Era.
What was the first warm blooded vertebrates that fed their young with milk appeared during the mesozoic period?
The mammals.
What was the first warm-blooded vertebrates that fed their young with milk appeared during the triassic period?
MAMMALS
What phylum was not present during the Cambrian period?
The phylum Cnidaria was not present during the Cambrian period. Cnidarians, which include jellyfish and corals, appeared later in the fossil record during the Ediacaran period and diversified in the subsequent periods.
During what period did the first vertebrates appear?
The first vertebrates evolved during the Cambrian Explosion about 525 million years ago. The Cambrian Explosion, obviously, occurred during the Cambrian period. The Cambrian period was part of the Paleozoic era.
What happened to earths continents during Permian period?
What happened to the earth's continents during permian period is pangea
What was earths atmosphere oceans and continents began to form during a period of earths history called?
precambrian era
The first forests of trees appeared during the?
The period, you mean? They first appeared during the Devonian Period.
What happened during the Pennsylvanian period?
One is that the first reptiles (not dinosaurs!) appeared. The land during this peiod was swamp-forests.
All Earths land mass was located in a single continent Pangaea during which period?
Jurassic
What was the earths climate like in the atmosphere during quaternary time period?
there was no quarternary period, so make up a climate for your made up time period.
What did the earths surface look like in the devonian time period?
During the devonian time period most of land was under water.
