The primary dating isotope is carbon-14
The plants lived around and among the inland sea
plants so the animals can have oxygen
plants
Yes, during the Cretaceous period hundreds of species other than tyrannosaurus rex lived and thrived.
nothing
they take plants and animals to the lab and experiment
a few plants that lived during the Cenozoic era were Birch&&Sweetgum
Animals such as PROCOPTODON,DIPROTODON,TOXODON,MAMMUTHUS,DEINOTHERIUM,COELODONTA lived in the quaternary period.Plants such as BIRCH,SWEETGUM lived in the quaternary period, as well as the plants and animals you see around you.
Fossil remains of plants and animals are studied by pateontologists. IN addition to identifying and cataloging information, they theoriza about how early plants and animals lived.
Argentavis and Osteodontornis birds lived during this period along with crocodiles and evolving snakes and turtles. Whales started to evolve and megaladons ruled the food chain.
Well, most of the time geologists find fossils of plants and animals, and then study them to find out how long ago the plant(or animal) lived.
hmm. . because plants and animals are like an persons who lived with carbon dioxide.