Daily and seasonal variations in temperature, annual cycles of precipitation, and larger swings in climate shape adaptations of plants and animals ... H.H. Biology of early Cenozoic primates.

Paleobotanists previously believed that all plant fossils dating back to the Cenozoic, 65 million years ago, are related to plants that exist today. In the 1960s, paleobotanist Harry MacGinite ...

Generally speaking, paleobotanists assume that any plant fossils dating from the beginning of the Cenozoic 65 million years ago must be related to plants that are alive today, and Othniophyton ...