BIO 263 Chapter Notes - Chapter 25: Irish Elk, Geologic Time Scale, Georges Cuvier
Document Summary
Darwin described evolution as descent with modification in the origin of species. It makes two predictions about the general nature of species. Species are related through a common given ancestry. Any trace of an organism that lived in the past. Can be anything from dung to bones to shells. Consists of all the fossils that have been found on earth and described in the scientific literature. Species from a same common ancestor or the same species in which the members are still alive compared to fossils. Initially would organize fossils based off of the differences in sedimentary rocks. Created a geological time scale where they created a massive time sequence where they divided the major events in earth"s history into eons eras and periods. Geological record should that the creationist belief that the earth is only. Earth is believed to be 4. 6 billion years.
