The taxonomy below consists of a subset of nodes from the C3 Taxonomy version 3.1 released on Jul 4, 2019. The tree have been extended with a User defined subtree describing nodes which have not yet been added to the C3 Taxonomy.

Each node in the tree is prefixed with a number describing the level of the node in the tree (i.e. the distance from the root node).

Each node may also be postfixed with a tuple with three values, indicating: