The dominant organisms living at the Cretaceous period or time were first primates and flowering plants. This was the time when the extinction of the dinosaurs took place.
the humans were the dominant organisms in the quaternary time period
The dominant organisms in the Cretaceous were reptiles. On land there were dinosaurs, and in the air, there were pterosaurs. In the ocean, there were plesiosaurs and mosasaurs.
Mammals were the dominant organisms.
it was the common house cat
gigagantosaurus
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.
evolution
A decreasing number of organisms will be supported by the environment.
The Cambrian is a period of time which comes after the vendian millions of years before dinosaurs it was hotter than the Sahara with no plants or animals on land only in the seas.Geologists name the different periods of the earth's development. Adam Sedgwick named the period within the Paleozoic era the Cambrian period. The Cambrian period occurred millions of years ago and represents the first geological period of this era. During this time, living organisms evolved to be more complex than the formerly known single cellular types.
This describes the process of evolution. When organisms evolve, they change over time in a way adaptive to their current environment.
dimetrodon was the dominANT SPECIES OF THE permian period
dinosaurs
The Eocene Epoch was the second epoch of the Tertiary Period. During this time, mammals were the dominant form of animal life.
Metazoans were abundant during the Vendian Period.
it was the Crassigyrinus it was aguatic and had sharp teeth. == ==
The dominant organisms during the carboniferous time period were plants. They were large, vascular, land plants that sometimes grew to be one hundred feet or more.
dimetrodon and edaphosaurus
You may face troubles with the organisms, for the sea life was then dominant... but most likely it would just be the humidity of the time, and the dominant, or dangerous organisms during the time.
the Apocalypse
The "tertiary period" is not a place you can go to. It is a time period - in the remote past of Earth. Since it is in the past, you can't go there.
hm plop you
Early humans first appeared in the tertiary period, a long time after the cretaceous period.