A simplified phylogenetic tree of the animal kingdom shows Chordata, Echinodermata, Arthropoda, Nematoda, Annelida, Mollusca, Platyhelminthes, Cnidaria, and Porifera. Instead of creating a phylogenetic tree on complex tools, use EdrawMax Online as this free phylogenetic tree maker has over 250 diagrams, 25,000 symbols, and over 25 million registered users that ease down your efforts in creating a phylogenetic tree just like the below diagram. A phylogenetic tree is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics.