PPT Slide
Notes:
....fossil fern would need the same kind of climate. When the plants are similar to modern day ones, we can look at modern day plants, their growth forms, the climate they live in and the associations they have with other plants to come up with a picture of the past. Just as fossil animals can show us how that type of animal has evolved through time, plants show evolution and reflect a changing climate. (Florissant Fossil Beds National Monument)