Taxonomy

The tree of 2,335 species

9 phyla, 23 classes and 176 orders, from fruit flies to bowhead whales. Zoom into any branch to read every species. The outer ring shows each species’ lifespan, GC content or genome size, so you can see where long lives cluster.

Outer ring: Maximum lifespan, log scale

Each ring is one rank. Scroll or use + and − to zoom, drag to move; select a group to zoom into it, a species to open it.

Every phylum, class and order

Browse the taxonomy

Open a class to see its orders. Every name links to a page with its species, lifespans and the mtDNA features that track lifespan.

Chordataphylum · 2,231 species · 10 classes

Ray-finned fishesActinopterygii895
MammalsMammalia627
BirdsAves423
ReptilesReptilia136
Sharks and raysChondrichthyes87
AmphibiansAmphibia47
LampreysCephalaspidomorphi10
Lobe-finned fishesSarcopterygii4
Ascidiacea1
Leptocardii1

Molluscaphylum · 55 species · 3 classes

Arthropodaphylum · 35 species · 3 classes

Echinodermataphylum · 5 species · 2 classes

Annelidaphylum · 4 species · 1 class

Nematodaphylum · 2 species · 1 class

RoundwormsChromadorea2

Cnidariaphylum · 1 species · 1 class

Platyhelminthesphylum · 1 species · 1 class

Poriferaphylum · 1 species · 1 class

Classification from AnAge. Divergence times come from TimeTree dates on the Open Tree of Life topology; the root is 750 million years old.