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Yes
infact over
400 million years ago!
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∙ 13y ago
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When did the first insect appear?
400 million years ago
How long ago do scientist think plants evolved stomata?
over 400 million years ago
When was Arthur's Seat first eruption?
It is estimated to of been between 350 and 400 million years ago.
The current atmospheric concentration of carbon dioxide on Earth is at its highest in over a million years?
True. It's now over 400 ppm (parts per million) or 0.04%.
How old are marbles?
around 400 million years old
How many years have sharks been around?
Sharks have been around for about 409 million years but before they evolved they were around for 890 million years.Sharks have been around for about 409 million years but before they evolved they were around for 890 million years. TRUE!Over 400 million years!Shakrs have been alive for a very long time. They have swam the waters of earth since about 409 million years ago. This period of time was before our first dinosaurs came to be infact.
How long have spiders been around for?
The main groups of spider developed about 200 million years ago, in the Triassic period. Spider-like arachnids are known from towards 400 million years ago, and some true spiders are known from about 300 million years ago in the Carboniferous period. The spiders are part of the Arthropod family, which dates back to the Cambrian era, 500 - 600 million years ago.
Did turtles live 200-400 million years ago?
Only at the very end of that period. Turtles first appeared about 210 million years ago. There were no reptiles 400 million years ago.
How many years is 12.6 quadrillion seconds?
approximately 400 million years.
How old is Marble rock?
around 400 million years old
How long has sharks been on the earth?
around 400 million years
What are some landplants 400 million years ago?
There were many plants 400 million years ago. Many of them were very large compared to modern plants. There were trees, cactus, and ferns, to name a few.
Is a limestone bed containing fossils that are 550 million years old older than a bed of sandstone containing fossils that are 400 million years old?
550 million years old
How old is the ceolocanth?
Coelacanths are well known from the fossil record of 400 million to 75 million years ago.
How long has wood been around for?
395 -400 million years ago
How old are the Dublin and Wicklow mountains?
Over 400 million years old.
How long have sharks been swimming in the ocean?
About 400 million years.
