Evolutionary Trees

A phylogeny shows the history of a species and it’s evolutionary relationships with other species (described as a tree). In each of these branching lineages, a split at a node indicates a speciation event where two species (which share a common ancestor) diverged from another. Below are 3 phylogenies showing the speciation of arthropods into different groups (Tree 1), hexapods into different groups (Tree 2) and finally Insecta into different orders (Tree 3).

Tree 1: Phylogeny of the Arthropoda

Tree 1

Tree 2: Hexapoda phylogeny


Tree 3: Evolution of the Insecta.


For a more up-to-date phylogenetic analysis of the major insect groups, please see the recent science paper.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s