Concept map on the Neozoic Era (Quaternary Era). The map presents the main events that define the most recent phase in Earth’s history. It illustrates the glaciations, the appearance of fur-covered mammals, and the evolution of early human species. Concept map shows the various forms of Homo that follow one another over time, up to Homo sapiens sapiens. The map also highlights the spread of humans across the world during periods when the seas were frozen.