Tana precambriana

Geozoic... Life before the Cambrian

Cambriano (1) - Fragments of Ancient Life

http://geozoic.tumblr.com/

Visible Paleo-Earth

Obsidian Soul  - Waptia fieldensis

http://burgess-shale.rom.on.ca/en/sea-odyssey/  (vedi anche: Anomalocaris virtualis)

D. W. Miller (1997) - (?) Leanchoilia, Marrella, Vauxia, Anomalocaris