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When did plants evolve?
Plants in the sea evolved about 3,600 million years ago. The first algal scum on land about 1,200 million years ago, The first first land plants appeared around 450 million years ago in the Ordovician period.
Dominant organisms in the ordovician time period?
The plants of the Ordivician consisted mostly of red and green algae. The first primitive land plants appeared during the Ordivician, though they did not resemble the land plants that come to mind as we think of land plants today. Primitive colonies of mosses, most likely.
When did seedless vascular plants evolve?
The first seedless vascular plants evolved over 439 million years ago during the Silurian period. These early vascular plants developed the ability to synthesize lignin which gave them support.
What was first group of animals to use an amniotic egg?
the amniotic egg first evolved during the Carboniferous period. It evolved from amphibian ancestors and gave rise to the predecessors of reptiles and eventually gave rise to reptiles. not sure if that answers your question or not... be more specific next time.
What era did the first birds appear?
Jurassic perios the Jurassic period was when the first bird, archaeopteryx, appeared Toward the end of the Jurassic Period, one of the first birds, Archaeopteryx (ahr-kee-AHP-ter-iks), appears. An interesting addendum is that Archaeopteryx is an almost perfect intermediate between the dinosaurs and the birds. It has a series of characteristics that are definitely dinosaurian, yet it has feathers, a wishbone, and wings
What moved toward the shoreline and became the first plants during the Ordovician period?
Mosses (Bryophyta).
Earth's first vertebrates appeared during this period?
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.
Fossils of fish appeared approximately 500 mya during the what?
Fish first appeared in the Ordovician Period.
Dinosaurs evolved first in the?
Dinosaurs first evolved 231.4 million years ago in Pangaea. This was during the beginning of the Mesozoic era, in the Triassic period.
What time period did graptolites live?
Graptolites first appeared in the Cambrian Period, 545-490 million years ago (mya), and evolved rapidly during the following Ordovician Period (490-434 mya) when the greatest variety of different forms lived. They suffered a major decline in the Silurian (434-410 mya) and only a few forms lasted into the Devonian. They finally became extinct during the Carboniferous Period, about 315 my ago.
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.
When did plants first colonize land?
In the paleozoic, more specifically the Silurian period. Liverworts had evolved by 472 million years ago, putting the very earliest land plants closer to the end of the Ordovician than at the beginning of the Silurian.
Which period came first the Ordovician or the Carboniferous?
The Ordovician period came first. It started 485.4 million years ago and finished 443.8 million years ago. Then came the Silurian and Devonian periods, followed at 358.9 million years ago by the Carboniferous.
How long ago did the first land plants appear?
Land plants first appeared in the Silurian period. This period took place during the Paleozoic Era. This was 438 million years ago.
What time period did the first humanoid evolved?
Neogene Period
What era is the fish in?
If you are asking what era the fish ORIGINATED, then your answer is the Cambrian Period, which was during the Paleozoic Era (544-245 million years ago). They started off as invertebrates, however. The first vertebrate that was a fish was the jawless fish in the Ordovician period. The first vertebrate that was a fish was the jawed fish in the Silurian period.
What was the environment like in the Ordovician period?
The weather in the Ordovician Era was very damp weather, but also, as the era continued, it grew relativley warm.The sudden change in weather caused mass extinction. Then all of the microscopic animals began to show up.
