Yuknessia superficially resembled modern kelp in appearance. Its long fronds were attached to a central body covered in small, conical plates.
Yuknessia is generally regarded to be a type of green alga of the division Chlorophyta. There is one known species, Y. simplex.
Yuknessia was described in 1919 by Charles Doolittle Walcott from the Burgess Shale in British Columbia, Canada. Several other specimens have been found at the Burgess Shale, and other specimens have been found in the Maotianshan and Wheeler Shales of China and Utah, respectively.
- ↑ Briggs, D.E.G.; Erwin, D.H.; Collier, F.J. (1995), Fossils of the Burgess Shale, Washington: Smithsonian Inst Press, ISBN 156098659X, OCLC 231793738
- ↑ http://www.fossilmuseum.net/Cambrian-Explosion/Yuknessia/Yuknessia.htm
- ↑ Guiry, M.D. & Guiry, G.M. 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 06 February 2014.
- ↑ Caron, J. -B.; Jackson, D. A. (October 2006). "Taphonomy of the Greater Phyllopod Bed community, Burgess Shale". PALAIOS 21 (5): 451–465. doi:10.2110/palo.2003.P05-070R.