Cloudinidae
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The cloudinids, an early metazoan family containing the genera Acuticocloudina, Cloudina and Conotubus, lived in the late Ediacaran period about 550 million years ago and became extinct at the base of
Restoration of Cloudina hartmannae with speculative mouth parts
Ediacaran biota
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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
Cloudinidae
…of localities in which their fossils are found, and are an abundant component of some deposits. They never appear in the same layers as soft-bodied Ediacaran biota, but the fact that some sequences contain cloudinids and Ediacaran biota in alternating layers suggests that these groups had different environmental…
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