Grypania
Jump to navigation
Jump to search
Template:Short descriptionTemplate:Automatic taxobox
Grypania is an early, tube-shaped fossil from the Proterozoic eon. The organism, with a size over one centimeter and consistent form, could have been a giant bacterium, a bacterial colony, or a eukaryotic alga.[1] The oldest probable Grypania fossils date to about 1870 million years ago (redated from the previous 2100 million)[1][2] and the youngest extended into the Ediacaran period.[3] This implies that the time range of this taxon extended for 1200 million years.
References
<templatestyles src="Reflist/styles.css" />
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ Schneider, D. A., Bickford, M. E., Cannon, W. F., Schulz, K. J., & Hamilton, M. A. (2002). Age of volcanic rocks and syndepositional iron formations, Marquette Range Supergroup: implications for the tectonic setting of Paleoproterozoic iron formations of the Lake Superior region. Canadian Journal of Earth Sciences, 39(6), 999-1012.
- ↑ Wang, Y., Wang, Y., & Du, W. (2016). The long-ranging macroalga Grypania spiralis from the Ediacaran Doushantuo Formation, Guizhou, South China. Alcheringa: An Australasian Journal of Palaeontology, 1-10.
Script error: No such module "Check for unknown parameters".
External links
- Grypania spiralis (scroll down) in "Major Events in the History of Life"
- Grypania spiralis photo gallery, specimens from Negaunee Iron Formation, Michigan