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What life was dominant on Earth before the dinosaurs?
The Mesozoic era (age of the dinosaur) came after the Paleozoic era which was dominated primarily by marine animals with virtually no dominate land based animals.nothing much ... they were created when the earth was created
Did mosses live longer than dinosaurs?
Yes. Mosses were around long before the dinosaurs were.
Why do scientists believe that birds evolved from dinosaurs?
Scientists believe birds evolved from dinosaurs because of several pieces of evidence, such as shared skeletal features, fossil records of "transitional" bird-like dinosaurs, and genetic similarities. These connections suggest that birds are the descendants of a group of small theropod dinosaurs.
What time period came before the Jurassic period?
Before the dinosaurs there was a plethora of life including fish, trilobites, lungfish, amphibians, and plenty more. In the Proterozoic era (2 billion to 650 million years ago) there was an assortment of single-celled and simple multi-celled creatures. The next 200 million years (early Paleozoic) showed a great expansion of life in the seas, including a diverse assortment of corals, mollusks, trilobites, sponges, shrimps, and other creatures. the next 150 million years (late Paleozoic) included the development of fish, land plants, insects, amphibians, and ultimately reptiles and flowering plants. The earliest dinosaurs began roughly 250 million years ago (the Mesozoic).
Did mammals appear in the fossil record before dinosaurs or after?
Mammals actually first came into existence about 220 million years ago, which is about 155 million years before the dinosaurs went extinct, and only about 10 million years after they themselves first evolved. So mammals actually lived alongside the dinosaurs, though played a much smaller role.
Were long-necked dinosaurs amphibians?
No, dinosaurs were not amphibians. Dinosaurs are classified as reptiles.
What came before the dinosaurs?
Fish, then amphibians then to reptiles then so on...
What came before the fish amphibians reptiles and dinosaurs?
Fish, reptiles, and amphibians, originated in that order during the Paleozoic era.
Are dinosaurs amphibians?
The term 'dinosaurs' refer to any of numerous extinct terrestrial reptiles of the Mesozoic era - ergo, they were not amphibians.
Were frogs around during the time of the dinosaurs?
Frog fossils have been found dating to the Jurassic period. The Jurassic period was the middle period in the middle of the Mesozoic. The Mesozoic was the era in which all dinosaurs lived, so frogs and dinosaurs did coexist.
Are dinosaurs more closely related to amphibians or mammals?
Dinosaurs are more closely related to mammals. Both mammals and dinosaurs share a reptilian ancestor that they don't share with amphibians.
Are dinosaurs more closely related to amphibians than reptiles?
Dinosaurs are more closely related to reptiles than to amphibians. In fact, dinosaurs are classified as reptiles. Amphibians are lower on the evolutionary tree than reptiles. Reptiles developed from amphibians. Amphibians developed from fish.
Were dinosaurs mammals or amphibians?
Neither...They were reptiles. dinosaurs were nether amphibians or mammals they were all reptiles, though they are more closely related to birds.
Are dinosaurs related to amphibians or reptiles?
Reptiles
Do scientist think dinosaurs are related with amphibians?
yes
Do scientists think dinosaurs are amphibians or reptiles?
no, they are considered to be an actual type of reptile.
What animals preceded dinosaurs?
Animals that evolved in periods before the Mesozoic Era (Age of Dinosaurs) were the pre-dinosaurian reptiles, mammal-like reptiles, fish, amphibians and all or most phyla of today's invertebrates.
