Abstract
a species of Ediacaran organisms described in 2018. About half an inch long, it is circular to oval, with a hole in the middle, probably a torus, and with twining ridges on the surface. It was probably embedded in a biofilm on the substrate. Flinders Ranges, Australia, 550 Ma.
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Carlton, R.L. (2019). O. In: A Concise Dictionary of Paleontology. Springer, Cham. https://doi.org/10.1007/978-3-030-25586-2_15
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DOI: https://doi.org/10.1007/978-3-030-25586-2_15
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