The Ediacaran biota was a group of large, biologically complex, mostly soft-bodied organisms, which lived during the Ediacaran Period. These were unusual tube and frond-shaped, mostly sessile, organis
A diorama of the macroscopic organisms of the Avalon assemblage at the Smithsonian National Museum of Natural History.
Palaeontologist Guy Narbonne examining Ediacaran fossils in Newfoundland
Modern cyanobacterial-algal mat, salty lake on the White Sea seaside
A reconstruction of the Ediacaran biota at the Field Museum in Chicago
The Avalon explosion, named from the Precambrian faunal trace fossils discovered on the Avalon Peninsula in Newfoundland, eastern Canada, is a proposed evolutionary radiation of prehistoric animals ab
Ediacaran biota
…represent the earliest known complex multicellular organisms. The Ediacaran biota may have undergone evolutionary radiation in a proposed event called the Avalon explosion, 575 million years ago. This was after the Earth had thawed from the Cryogenian period's extensive glaciation. This biota largely disappeared with the…
Dickinsonia, an enigmatic quilted organism with glide symmetry which may have been an early animal
Cloudina may have been one of the first mineralized animals to appear, although its life appearance and evolutionary affinities remain unknown.
Kimberella is an enigmatic fossil that has been interpreted as a cubozoan cnidarian, or as an early mollusc, but its identity is still unclear.
The Ediacaran trace fossils are a sign of animal movement as well as sediment disturbance, they show possible signs of the earliest true animals.