Laurasiatheria
Rodentia
Lagomorpha
Carnivora
Erinaceomorpha
Greater Apes
Perissodactyla
Origin of Animals with
plausible thumb
Artiodactyla
Primates
New World Monkeys
Cetacea
Afrotheria
Falconiformes
Dinosauria
Origin of Placental
Mammals
Eutheria
E
Soricomorpha
Prosimians
Marsupialia
Lesser Apes
Old World Monkeys
Squamata
Monotremata
Sphenisciformes
Urodela
Anura
Amniotes
Caecilian
Origin of Animals with
Amniotic membrane
Origin of Four legged
Animals
Crocodilia
Testudines
Tetrapoda
Sarcopterygii
WG
WGD
GD
Hexapoda
Hex
Hexap
oda
Crustacea
Rays
Actinopterygii
Onychophora
ra
a
WG
WGD
GD
Sharks
Origin of Animals with
Vertebral Column
WG
WGD
GD
Wh
W
Whole
Who
holle
ho
e
Gen
G
Ge
en
e
nom
om
ome
me
e
Genome
Duplic
Dup
lliic
icat
ati
ati
atio
tion
Duplication
Origin of Animals that
sheds exoskeleton
Vertebrata
Verte
ebrra
Cephalochordata
Ecdysozoans
WG
W
WGD
G
GD
D
Origin of Animals
with Notochord
Hemichordata
Origin
Ori
riigin of Animals wi
with ring
like sensory organs
Chordata
Chord
Ch
h
hor
Bryozoans
ans
ns
Echinodermata
Origin of Animals that form
mouthwith Blastopore
Origin of Animals that
form anus with Blastopore
Coelomates
Cnidaria
Asterozoa
Scyphozoa
Nearly 8 million
species of animals
are known. Few of
the major taxonomic
groups are
mentioned in the
evolutionary tree
Origin of
Triploblastic and
Coelomic Animals
Crinozoa
Origin of Diploblas
Dip
Diploblastic
stic
Animals
Anthozoa
Mollusca
Protostomes
Pro
ro
oto
oto
Deuterostomes
Echinozoa
Chelicerata
Arthropoda
Art
Arthro
Myriapoda
Nematoda
Flatworms
Polychaeta
y
Cephalopoda
Annelida
Oligochaeta
Bivalvia
Porifera
Plants
Animals
Fungi
Gastropoda
Origin
Origi
in of m
in
multicellular
Animals
Protozoa
Chromalveolates
Euglena
Eubacteria
Archaea
Origin of Life