TWELVE
Emergent Archaic Life
adapted from multiple sources (see Bibliography)
LUCA
(last universal common ancestor)
Protista
bacteria
archaea
Eukarya
plants
fungi
Unikont
Prokaryote
Opisthokont
Unicellular flagellate
Choanoflagellate
parazoa
Eumetazoa
radiata
Bilateria
protostome
Deuterostome
3500 mya
541 mya
2200 mya (2.2 bya)
650 mya