Aves
Mammalia
CHART I
HYPOTHETICAL PHYLOGENETIC RELATIONSHIPS
BETWEEN EXTANT MAJOR GROUPS
OF ORGANISMSo
Angiospermae
SPERMATOPHYTA
Chlorophyta
Insecta
ARTIIROPODA
~fyriapoda
Onycophora
Urochordata
l\1ol1usca
~ Hemichordata
CHOR ATA
Porifera
Euglenophyta
l\Iesozo~\
Pyrrophyla
prot~zoa ~
./ )
Llche~ ", ", \
;'
Chrysophyta
Eumycophyta
~ . .... •..•••:.
.:
/
MyxOmycop~ ..: •..•.'....•: :
...
..•
. / '
Schizomycophyta '--- ..•• :.'.::' .. ::'.. :... ~ : ..•.•... .•.0: ••••• ,::
.'
Phaeophyta
CyanophY~"-::::;.:.,......
',.:'•.••:.::.,::=- Rhodophyta
VERTEBRATA
Echinodermata
--------."
Chaetognatha
•••
' - -
••
Lepidophyta
Calamophyta
Brachiopoda
••••
' \
/
~ •••
Platyhelminthes
Ectoprocta
•••
Phoronida"-----... •••• •
Acanthocephala
'-----. ••••••••••• ~lelminthes
Ctenophora
••••••••••••• ~
• ••:.....
Entoprocta
•••••••• ~
Bryophyta
xvii