Schopf and Blacic, 1971
From dinoflaj2
Schopf, J.W. and Blacic, J.M., 1971: New microorganisms from the Bitter Springs Formation (Late Precambrian) of the north-central Amadeus Basin, Australia. Journal of Paleontology, 45(6), p.925-960, pl. 105-114.
