Proterozoic Eon Zoa
Eukaryota -> Hemichordata
- Geologic time scale
- Proterozoic
- I. Archaeplastida (Bikonta)
- Red algae
- Plant
- II.Fungi (Unikonta; Opisthokonta)
- Fungus
- III.Metazoa (Unikonta; Opisthokonta)
- a Parazoa
- Placozoa
- b. Eumetazoa
- Germ layer
- b 1. Radiata
- Radiata
- b 2. Bilateria
- Bilateria
- b 2.1. Protostomia
- Mollusca
- Annelid
- Arthropod
- Chaetognatha
- Nematode
- b 2.2. Deuterostomia
- Phoronid
- Brachiopod
- Echinoderm
- Hemichordata