The discovery of the Ediacarian metazoan fossil fauna in South Australia on March 27, 1946, by the author represented the culmination of a decade of widespread and diligent search. It was not, as one authority has recorded,…"basically fortuitous." The find was made in the course of widespread mapping of the late Proterozoic-Cambrian succession and followed Sprigg's remapping, remeasurement and redefinition of Howchin's "Adelaide Series" through to the base of the fossiliferous Cambrian succession.

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