basionym rank taxon taxanomy extant != extinct Phylogeny and the Tree of Life Species = members of a species can breed to generate fertile offspring eon = periode van tijd op aarde hadeon eon = 1e periode https://en.wikipedia.org/wiki/History_of_Earth zoology = study of kingdom Animalia botany = study of kingdom plantea mycology = study of kingdom fungi the nine animal phyla = there are many animal phyla, but these nine are the most 'seen' Porifera, Cnidaria, Arthropoda, Nematoda, Annelida, Mollusca, Platyhelminthes, Echinodermata, and Chordata