This example includes three lineages that were established but became extinct before the end of the observation period. This diagram is an example of a simple phylogenetic tree.

Tree representations figure throughout Llull's work, culminating in Arbor scientiae, a collection of tree-based diagrams of science and human knowledge, published in 1296.

Want to start the New Year with a little bit of perspective? Take a look at this beautiful interactive tree of life diagram created by Evogeneao, which enables you to see how all organisms on ...