Whenwas the oldest unmistakable evidence of life on land?
What are two main characteristics that plants developed in order to adapt to living on land?
What is the name of one of the first land plants? (a tiny rootless, leafless plant; only a few cm high)
Early=6ft; Late=60ft (the largest land plants)
Describe the Carboniferous period.
True or False: Only hard parts of organisms are preserved in ironstone concretions.
Name two successful marine groups that have never adapted to life on land.
cnidarians and echinoderms
since the Cambrian
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