Talk:Xiphosura

Is Xiphosura ranked as Class, order or subclass? The Limulidae page indicates Xiphosurida is an order, which agrees with the Paleobiology Database pages. However this page indicates that Xiphosura is an order the subtaxa shifted lower. None of the placements are references in the text so I cant tell what the validity of the placements are.--Kevmin (talk) 19:35, 29 July 2009 (UTC)

I couldn't find this information here. 2804:29B8:5028:A07F:B10D:B1BB:3903:F999 (talk) 15:30, 14 April 2023 (UTC)

You could probably find it on the articles of extant xiphosurans such as Atlantic horseshoe crab. Houcaris 20:06, 1 October 2025 (UTC)

Recently a new xiphsuran was described from the Silurian but the article hasn’t updated. Houcaris (talk) 00:47, 30 September 2025 (UTC)

The article gets updated by people. Do you have the reference for the research paper with the new description? - UtherSRG (talk) 13:52, 30 September 2025 (UTC)

https://pmc.ncbi.nlm.nih.gov/articles/PMC12173487/ I just looked up the article it’s under referenced though but that may just be because it was published 2 months ago. Houcaris (talk) 22:51, 30 September 2025 (UTC)

Fixed it. Houcaris 20:05, 1 October 2025 (UTC)

Would File:Ordovician Xiphosuran.jpg useful for certain parts of the article as it is the oldest known xiphosuran?

Tamisiocaris borealis|Talk 15:07, 2 April 2026 (UTC)

The period is already mentioned, so why not. Chiswick Chap (talk) 17:33, 2 April 2026 (UTC)

@Tamisiocaris borealis Under CC BY 4.0 license, you have to indicate the change you have made from original figure. This image for example is cropped from Figure 3 of original paper, so you have to mention "Cropped from Fig. 3 of Bicknell and Pates (2020)." I actually have told about that in your previous account... Ta-tea-two-te-to (talk) 11:13, 5 April 2026 (UTC)

If folks use the Crop tool on Commons, it inserts all that stuff for you. Chiswick Chap (talk) 11:17, 5 April 2026 (UTC)