Give an overview of life through the Tertiary, in relation to changing Paleogeography and climate

The tertiary consisted of two main epochs. The Paleocene, the Eocene and the Oligocene, which make up the Paleogene; and the Miocene and Pliocene, which make up the Neogene. The close of the Cretaceous Period marked a major transition in Earth’s history. Ammonoids and marine reptiles disappeared from the sea. Marine taxa that persist as familiar inhabitants of modern ocean, among them bottom dwelling molluscs. On the land, the flowering plants of the Paleogene …

…if it was twice the size of any individual pack member. Also, a hierarchy could be organized in each of the social packs. This gave better communication, so the prey could be more easily killed. Apes adapted to Savanna to walk upright and also to the tropical forests. Plant life's pattern remained the same as every epoch's throughout the Tertiary. The cooler the climate, the more grass there was. And the Pliocene was certainly cool.