0
Mammals first appear in the fossil record of the Mesozoic Era.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThe Jurassic. Mammals evolved continuously from the early synapsids of the Paleozoic to modern mammals, but the first mammals that are considered "true" mammals appeared in the Jurassic.
Wiki User
∙ 13y agoWe're in the Cenozoic era. It depends on what is meant by dominated. Man could be the answer.
Wiki User
∙ 11y agoman-amal era
Wiki User
∙ 12y agoTrassic
Wiki User
∙ 6y agolike i know
Add your answer:
Earn +20 pts
When did the first cells appear on earth?
About 3.5 billion years ago.
When did the first colonial organisms appear on earth?
1.4 billion years ago
When did the first marine plants appear on earth?
the first plants appeared about 3000 years ago. the first plant was algae.
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.
When did invertebrates first appear on the Earth?
The first fossils of invertebrates are at least 3.5 billion years old.
In general the first mammals of any group to appear in the fossil record?
resembled dogs and cats
How old was the earth when the first mammals appeared?
250 b.c. .
When did humans and mammals appear on earth?
The first true mammals appeared on Earth around 200 million years ago, in the late Triassic period. However, these mammals would remain small and relatively insignificant due to the dominance of the dinosaurs. Only when they died out 65 million years ago did mammals grow and diversify to become the ones we see today. The first modern humans (Homo sapiens sapiens) evolved around 200,000 years ago.
When did small furry animals appear?
The first mammals appeared during the Cretaceous Period.
Where did Arthropods first appear on earth?
yes
When did the first mammals walk the earth?
A very long time ago.
When did the first ladybug appear on earth?
Chick or the egg!
What were the first orgisms to appear on earth?
In someones pants??
Who was the first to uncover america?
Archaeologists and Paleontologists were the first to uncover America.
What were the first creatures to appear on earth?
well the first thing was algae...and formed from there on
What was the first species to appear on earth?
The early bacterias. Hominids
What organisms are thought to have been the first to appear on earth?
bacteria
