The Cambrian explosion

The Cambrian is marked by the diversification of more complex animals like arthropods and early "fishes". Life is still only marine.

Sources and more informations :

Protohertzina - https://fossiilid.info/16575?mode=in_...
Aldanella - https://link.springer.com/article/10....
Ottoia - https://burgess-shale.rom.on.ca/en/fo...
Echmatocrinus - https://burgess-shale.rom.on.ca/en/fo...
Lingulella - https://burgess-shale.rom.on.ca/en/fo...
Wiwaxia - https://burgess-shale.rom.on.ca/en/fo...
Helicoplacus - http://www.lifebeforethedinosaurs.com...
Hallucigenia - https://burgess-shale.rom.on.ca/en/fo...
Opabinia - https://burgess-shale.rom.on.ca/en/fo...
Marrella - https://burgess-shale.rom.on.ca/en/fo...
Olenellus - https://www.britannica.com/animal/Ole...
Paradoxides - https://www.britannica.com/animal/Par...
Elrathia - https://www.fossilguy.com/gallery/inv...
Anomalocaris - https://burgess-shale.rom.on.ca/en/fo...
Pikaia - https://burgess-shale.rom.on.ca/en/fo...
Myllokunmingia - http://www.prehistoric-wildlife.com/s...
Haikouichthys - https://www.thoughtco.com/overview-of...

Music Dreamer by Hazy cinematic
Thumbnail : Tiko

0:00 Cambrian conditions
1:48 Microsopic life
6:04 Invertebrates
12:13 Arthropods
17:55 Vertebrates