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The earliest reptiles known evolved around 312 million years ago, and looked a lot like lizards. However, they were not actually lizards. The oldest known lizard fossil dates to 220 million years ago, about the same time that dinosaurs evolved. That was during the Triassic period of the Mesozoic era.
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When did the cycad first appear?
they first appear in prrmian period
Was there amphibians before dinosaurs?
Yes, the first ammonites lived during the Devonian Period. This was about 370 million years ago. The Devonian Period was a part of the Paleozoic Era.Dinosaurs did not appear until the Triassic, approximately 230 million years ago.HTH,Dr. C.
When did first birds appear?
Middle to late cretacious. But some dinosaurs e.g raptors, and pterosaurs were there even earlier.
What era did the first dinosaur appear in?
The first dinosaurs lived in the beginning of the Mesozoic Era (or the Age of Reptiles). Birds were amazingly discovered to be dinosaurs so dinosaurs were also alive in the Cenozoic (that's our time-the Age of Mammals) to today.
How did the triassic-jurassic extinction event create diversification in dinosaurs?
Dinosaurs first appeared in the middle of the Triassic period. The extinction during the Triassic-Jurassic periods allowed dinosaurs to grow to mammoth proportions.
Did the first shark appear after the dinosaurs became instinct?
No no no the first shark appeared in the jurassic period.
Which period did dinosaurs appear?
The Mesozoic Era
What era and period did reptiles first appear?
they evolved in marsh habitats around 350 million yrs ago The first known decedent for the dinosaurs was the hylonomas.
Did dinosaurs roam the lands during the pennsylvanian period?
No. the first Dinosaurs were in the Triassic period, which came later
What animal is believed to be the first to appear on land?
Dinosaurs
During what period did dinosaurs first appear in the fossil records?
The oldest dinosaur fossils known to man date back to the late Triassic Period about 230 Million Years Ago.
In what period did dinosaurs first live?
Triassic
Dinosaurs first appeared in what period?
Dinosaurs first appeared in the tertiary stages of the Earth. Tertiary was when the dinosaurs ruled the earth. Then there was jurassic and then creteacious
Is it true that the first dinosaurs appeared in the triassic period?
Yes, the first dinosaurs evolved in the Triassic period. The earliest dinosaurs that have been discovered are Eoraptor and Herrerasaurus, which lived 231.4 million years ago.
What period were dinosaurs from?
None-avian dinosaurs first appeared in the Triassic period and were the dominant land vertebrates through the Jurassic and Cretaceous periods. At the end of the Cretaceous period, 65.5 million years ago, all non-avian dinosaurs went extinct. Birds, which are now classified as dinosaurs, continue to live to his day.
When did the cycad first appear?
they first appear in prrmian period
How long ago did the first dinosaurs appear?
About 230 million years ago.
