Talk:Chelicerata/Archive 1

Eurypterids
I added a the class Eurypterida to the article, but it isn't alinged with the other classes. How can I fix this? Giant Blue Anteater 16:39, 21 October 2006 (UTC)

Compound eyes?
The article says some chelicerates have compund eyes, but it doesn't provide examples. Eyes says compound eyes are found in insects and some bivalve molluscs and annelids with no mention of chelicerates. Which is correct? Ace of Sevens (talk) 23:56, 25 October 2009 (UTC)


 * See Eyes - the horseshoe crab Limulus is a chelicerate and has compound eyes. --Philcha (talk) 06:47, 26 October 2009 (UTC)

Cambrian Origin
The Burgess Shale animal 'Sanctacaris' was probably the first Chelicerate, extending the range to the Cambrian. See Steven Jay Gould's Wonderful Life, p. 187.


 * There is room for uncertainty - see Chelicerata. --Philcha (talk) 05:08, 14 January 2010 (UTC)

I no longer maintain this article
I no longer maintain the article. Some person(s) have inserted ... templates. This template is bad for readers, as it clutters the page; and it is likely to be detached from the text. I am not doing the work to repair this, it should be done by the person(s) resonsipible for damaging the artcile. --Philcha (talk) 04:50, 10 July 2010 (UTC)
 * I tried to update the taxobox for this article to the newer Automatic taxobox system, but was reverted by the person who "no longer maintains the article". Perhaps there is an ownership issue here? Kaldari (talk) 21:52, 28 July 2011 (UTC)

Taxobox photograph
I believe a sea spider is not a good example of a chelicerate. Many scientists are unsure whether they should be classified in this superclass. An arachnid(spider, scorpion, etc.)or horseshoe crab would be better, I suppose.--Crustaceanguy 21:45, 24 January 2007 (UTC)

Why doesn't someone mention their close affinity to ( and probable descendancy from) trilobites?-- Marcraymond (talk) 04:41, 18 May 2012 (UTC) 12:33, 18 May 2012  — Preceding unsigned comment added by Marcraymond (talk • contribs)

- - - - - '''end of review - - - - -

- - - - End of Review - - -

Paraphyly in the picture http://en.wikipedia.org/wiki/File:Arthropod_head_problem_02.png on this page.
As I was reading this page today I noticed that the image http://en.wikipedia.org/wiki/File:Arthropod_head_problem_02.png as used on this page uses Tracheates as a taxon, which to my mind, and what I feel this is the consensus amongst scientists in relevant fields, is an invalid taxon as it appears to be paraphyletic. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1634985/

What would the best way to correct this be? I don't know how to work an image like this one. BullNiro (talk) 11:33, 27 May 2012 (UTC)


 * I agree the image is out-of-date. Quite a bit of this article needs updating. Relationships with other arthropods doesn't adequately reflect current consenus views properly (and right now doesn't have sources for the cladograms). Peter coxhead (talk) 10:11, 19 March 2016 (UTC)