Drifting Organisms in the Precambrian Sea

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Science  15 Jul 1966:
Vol. 153, Issue 3733, pp. 293-294
DOI: 10.1126/science.153.3733.293


Drag marks in the Upper Precambrian Winnall Beds of central Australia were made by semibuoyant flexible objects at least 15 centimeters long, which presumably were algae. This find extends the range of such marks into the Precambrian era and supplements the discovery of microflora in the same Sedimentary Sequence.