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Onega stepanovi is a fossil from the Ediacaran Period, described by Mikhail A. Fedonkin in 1976. It was named after the Onega area of Russia, where it is found in outcrops near the White Sea. These outcrops comprise channelized sandstone beds deposited by distributary-mouth bars, and also contain the fossil Rangea. O. stepanovi had a head and a tail, and Fedonkin inferred that it possessed a "rigid dorsal carpace".[1] Ivantsov has proposed that O. stephanovi be placed in the extinct phylum Proarticulata.[2]
[edit] References
- ^ Fedonkin, Mikhail A. 2003. "The origin of the Metazoa in the light of the Proterozoic fossil record". Paleontological Research, vol. 7, no. 1, March 31, 2003. P.35. Retrieved from [1] May 19, 2007
- ^ Ivantsof, A. Yu. 2007. "Small Vendian transversely Articulated fossils". Paleontological Journal. Volume 41, Number 2. April, 2007. doi:10.1134/S0031030107020013 Abstract retrieved from [2] May 19, 2007
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