Talk:Wiwaxia
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The following two references[1] [2] are vital to this article and should be incorporated! Let me know if you have difficulty accessing them and I'll post you a link.
- ^ Parker, A.R. (1998). "Colour in Burgess Shale animals and the effect of light on evolution in the Cambrian". Proceedings of the Royal Society B: Biological Sciences 265 (1400): 967-972. doi:10.1098/rspb.1998.0385.
- ^ Butterfield, N.J. (2006). "Hooking some stem-group ‘‘worms’’: fossil lophotrochozoans in the Burgess Shale". Bioessays 28 (12): 1161-6. doi:10.1002/bies.20507.
Verisimilus T 14:53, 19 August 2007 (UTC)
Contents |
[edit] More sources
- <ref name="Porter2004HalkieriidsMidCambrianAustralia">Porter, S.M. (May 2004). "Halkieriids in Middle Cambrian Phosphatic Limestones from Australia". Journal of Paleontology 78 (3): 574-590. doi:10.1666/0022-3360(2004)078<0574:HIMCPL>2.0.CO;2. http://findarticles.com/p/articles/mi_qa3790/is_200405/ai_n9377598/pg_1?tag=artBody;col1. Retrieved 2008-08-01.</ref> - includes new Wiwaxiid, extends time and geo range, wiht brief description.
- Danny Eibye-Jacobsen; A reevaluation of Wiwaxia and the polychaetes of the Burgess Shale; Lethaia, Volume 37, Number 3, September 2004 , pp. 317-335(19) - "Apart from its dubious sclerites, Wiwaxia has no characters that could indicate any close relationship with Polychaeta or Annelida."
- STEFAN BENGTSON and SIMON CONWAY MORRIS; A comparative study of Lower Cambrian Halkieria and Middle Cambrian Wiwaxia; Lethaia Volume 17 Issue 4, Pages 307 - 329 ; 1984 ? ; doi=10.1111/j.1502-3931.1984.tb00677
- Amélie H. Scheltema, Klaus Kerth, Alan M. Kuzirian; Original molluscan radula: Comparisons among Aplacophora, Polyplacophora, Gastropoda, and the Cambrian fossil Wiwaxia corrugata; Journal of Morphology Volume 257 Issue 2, Pages 219 - 245; doi=10.1002/jmor.10121
- S Conway Morris; The Crucible of Creation; Oxford University Press, 1998 ; ISBN 0192862022
- Butterfield, Nicholas J; AN EARLY CAMBRIAN RADULA; Journal of Paleontology, May 2008
-- Philcha (talk) 16:59, 6 August 2008 (UTC)
[edit] Name?
Anyone know where the name comes from? DS (talk) 14:37, 2 November 2008 (UTC)
- Most of these critters were named by Walcott 1910-1918. Sometimes he used geographical names, e.g. Canadia, Burgessia, Opabinia, Yohoia. I've Googled and checked Gould's Wonderful Life, and got no clues about the etymology of Wiwaxia. -- Philcha (talk) 16:40, 2 November 2008 (UTC)
I believe it's named after either "Wiwaxi Gap" or "Wiwaxi Peak" [1] [2], probably 'Peak, as the view is prettier.Wiwaxy Peak--Mr Fink (talk) 17:08, 2 November 2008 (UTC)
[edit] Lesson of stratigraphy
The Lower-Middle Cambrian boundary in the global geologic time scale of the International Commission on Stratigraphy still is not definitely. But two candidates are offered:
- FAD of Oryctocephalus indicus is the the base of the Zone Oryctocephalus indicus, chinese standatr of the Lower-Middle Cambrian boundary.
- FAD of Ovatoryctocara granulata is the base of the below lying Zone Ovatoryctocara granulata, russian standatr of the Lower-Middle Cambrian boundary.
Chinese lagerstate "Kaili Biota" has been found in the Zone Oryctocephalus of the middle part of the Kaili Formation. See http://jpaleontol.geoscienceworld.org/content/vol84/issue4/images/large/i0022-3360-84-4-668-f03.jpeg Thereby, Wiwaxia taijiangensis uniquely has an lower Middle Cambrian age. Aleksey (Alnagov (talk) 19:12, 18 January 2011 (UTC))
[edit] add svg image
I have uploaded a .svg conversion of the Burgess_scale_Cor.png file to Wikimedia (Burgess_scale_Cor.svg), not sure how to append to Dinoguy2's original entry w/o breaking something. Anyone wants to before I get it figured out perfectly welcome. Thanks & good work! Sargon3 (talk) 02:17, 26 January 2012 (UTC)
