Talk:Xianguangia

Xianguangia is a Ediacaran survivor?
Han, J.; Kubota, S.; Uchida, H. O.; Stanley Jr, G. D.; Yao, X.; Shu, D.; Li, Y.; Yasui, K. (2010). "Tiny Sea Anemone from the Lower Cambrian of China". In Lalueza-Fox, Carles. PLoS ONE 5 (10)

Aleksey (Alnagov (talk) 16:15, 27 August 2013 (UTC))
 * 1) Xianguangia has a actinia-like cylindrical body with 16 tentacles, such organisms are no among the Ediacaran fossils.
 * 2) Feather-like TENTACLES of the Xianguangia is not frond-like BODY of a some Ediacaran organisms. In addition, many modern sea anemones and coral polyps have similar feather-like tentacles (for axample, Actinodendron, Phymanthus).
 * 3) The Xianguangia has a typical for sea anemones pedal disc, NOT attachment disk with thin stem, such as Ediacaran Charniodiscus.
 * 4) There is no reliable evidence of relationship between the Xianguangia, Stromatoveris and Ediacaran frond-like organisms.


 * I am sure that you are right: nevertheless, the article should still reflect the fact that the assertion has been made. A suitable phrasing might convey the scepticism with which the assertion might be handled... Martin  (Smith609 – Talk)  21:24, 27 August 2013 (UTC)
 * You're right. Aleksey (Alnagov (talk) 06:52, 28 August 2013 (UTC))
 * And besides – at some level, Xianguanguia evolved from something that was alive in the Ediacaran! (Even if not a member of the traditional Ediacara Biota / Vendobionta) Martin  (Smith609 – Talk)  21:25, 27 August 2013 (UTC)
 * As well as and others Cambrian organisms have Ediacaran ancestors that have not yet found. I don't like the term "Ediacara Biota", because it is artificial lopped term (biota is a set of all organisms of a specific locality or geological period, not a separate specieses), and "Vendobionta", because it is A. Seilachaer's biological taxon. During last year's expedition to the Ediacaran locality of the White Sea and in collection of the Paleontological Institute we have found reliable traces of a sea anemones (Bergaueria and other), traces of arthropods (Diplichnites trackway and Monomorphichnus), Oldhamia cf. curvata and others "Cambrian" traces. I will be describe these traces. My first article about new genus of the complex Ediacaran trace fossil will be published in the end 2014. Aleksey (Alnagov (talk) 06:52, 28 August 2013 (UTC))