One of the mysteries of the English language finally explained.
Definition of Ediacara in English:
Ediacara
noun
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".
Origin
1950s; earliest use found in Nature: a weekly journal of science. From the name of the Ediacara Hills in South Australia.