Attributive Designating or relating to an association of soft-bodied marine organisms of the late Precambrian, known from fossil remains in a sedimentary formation from the Ediacara Hills, South Australia, and also found in other locations worldwide. Especially in "Ediacara fauna".
Although some Ediacaran fossils have been identified with medusoids, soft corals, annelids, and other extant groups, many appear to be unrelated to any known organisms.
1950s; earliest use found in Nature: a weekly journal of science. From the name of the Ediacara Hills in South Australia.