They survived for almost 300 million years, and their fossils can be found from the Cambrian to the Permian periods. An early (Lower Cambrian) trilobite species, Eoredlichia takooensis from Emu Bay Shale, Kangaroo Island, Australia.
The environment in which an animal lives in is referred to as its habitat. A habitats is a place where living things live and how they survive in that area. Animals have basic needs for air, water, food, shelter, and space.
Land habitats
Coniferous forest. Coniferous forests are often found in cool areas in the Northern Hemisphere, such as Canada, Alaska, Scandinavia, and parts of Russia. ...
Savanna. These tropical grasslands are found in Africa. ...
Tropical rain forest. ...
Hot desert. ...
Tundra. ...
Deciduous forest.
Here is your answer.
cambrian explosion happened about 550million years ago. grand canyon was formed by the Colorado river about 20million years ago so the fossils from the CE would be in the bottom half of the canyon.
the organisms lived in a marine environment for them to be trapped in sedimentary rocks n formed fossils. they would be multi-cell organisms and many of them no longer exist today.
