Early Cambrian sipunculan worms from southwest China - PubMed (original) (raw)
Comparative Study
Early Cambrian sipunculan worms from southwest China
Di-Ying Huang et al. Proc Biol Sci. 2004.
Abstract
We report the discovery of sipunculan worms from the Lower Cambrian Maotianshan Shale, near Kunming (southwest China). Their sipunculan identity is evidenced by the general morphology of the animals (sausage-shaped body with a slender retractable introvert and a wider trunk) and by other features, both external (e.g. perioral crown of tentacles, and hooks, papillae and wrinkle rings on the body surface) and internal (U-shaped gut, and the anus opening near the introvert-trunk junction). The three fossil forms (Archaeogolfingia caudata gen. et sp. nov., Cambrosipunculus tentaculatus gen. et sp. nov. and Cambrosipunculus sp.) have striking similarities to modern sipunculans, especially the Golfingiidae to which their evolutionary relationships are discussed. This study suggests that most typical features of extant sipunculans have undergone only limited changes since the Early Cambrian, thus indicating a possible evolutionary stasis over the past 520 Myr.
Similar articles
- An Early Cambrian problematic fossil: Vetustovermis and its possible affinities.
Chen JY, Huang DY, Bottjer DJ. Chen JY, et al. Proc Biol Sci. 2005 Oct 7;272(1576):2003-7. doi: 10.1098/rspb.2005.3159. Proc Biol Sci. 2005. PMID: 16191609 Free PMC article. - An early Cambrian hemichordate zooid.
Hou XG, Aldridge RJ, Siveter DJ, Siveter DJ, Williams M, Zalasiewicz J, Ma XY. Hou XG, et al. Curr Biol. 2011 Apr 12;21(7):612-6. doi: 10.1016/j.cub.2011.03.005. Epub 2011 Mar 31. Curr Biol. 2011. PMID: 21439828 - The origin of crustaceans: new evidence from the Early Cambrian of China.
Chen JY, Vannier J, Huang DY. Chen JY, et al. Proc Biol Sci. 2001 Nov 7;268(1482):2181-7. doi: 10.1098/rspb.2001.1779. Proc Biol Sci. 2001. PMID: 11674864 Free PMC article. - Eggs and embryos from the Cambrian.
Morris SC. Morris SC. Bioessays. 1998 Aug;20(8):676-82. doi: 10.1002/(SICI)1521-1878(199808)20:8<676::AID-BIES11>3.0.CO;2-W. Bioessays. 1998. PMID: 9780842 Review. - Hooking some stem-group "worms": fossil lophotrochozoans in the Burgess Shale.
Butterfield NJ. Butterfield NJ. Bioessays. 2006 Dec;28(12):1161-6. doi: 10.1002/bies.20507. Bioessays. 2006. PMID: 17120226 Review.
Cited by
- Annelids from the Cambrian (Wuliuan Stage, Miaolingian) Spence Shale Lagerstätte of northern Utah, USA.
Kimmig J, LaVine RJ, Schiffbauer JD, Egenhoff SO, Shelton KL, Leibach WW. Kimmig J, et al. Hist Biol. 2024;36(5):934-943. doi: 10.1080/08912963.2023.2196685. Epub 2023 Apr 8. Hist Biol. 2024. PMID: 38800616 - New fossil of Gaoloufangchaeta advances the origin of Errantia (Annelida) to the early Cambrian.
Yang X, Aguado MT, Helm C, Zhang Z, Bleidorn C. Yang X, et al. R Soc Open Sci. 2024 Apr 10;11(4):231580. doi: 10.1098/rsos.231580. eCollection 2024 Apr. R Soc Open Sci. 2024. PMID: 38601033 Free PMC article. - The first high-quality chromosome-level genome of the Sipuncula Sipunculus nudus using HiFi and Hi-C data.
Zheng Z, Lai Z, Wu B, Song X, Zhao W, Zhong R, Zhang J, Liao Y, Yang C, Deng Y, Mei J, Yue Z, Jian J, Wang Q. Zheng Z, et al. Sci Data. 2023 May 25;10(1):317. doi: 10.1038/s41597-023-02235-7. Sci Data. 2023. PMID: 37231051 Free PMC article. - The Cambrian cirratuliform Iotuba denotes an early annelid radiation.
Zhang Z, Smith MR, Ren X. Zhang Z, et al. Proc Biol Sci. 2023 Feb 8;290(1992):20222014. doi: 10.1098/rspb.2022.2014. Epub 2023 Feb 1. Proc Biol Sci. 2023. PMID: 36722078 Free PMC article. - The Draft Genome of Chinese Endemic Species Phascolosoma esculenta (Sipuncula, Phascolosomatidae) Reveals the Phylogenetic Position of Sipuncula.
Zhong S, Ma X, Jiang Y, Qiao Y, Zhao L, Huang L, Huang G, Zhao Y, Liu Y, Chen X. Zhong S, et al. Front Genet. 2022 Jul 22;13:910344. doi: 10.3389/fgene.2022.910344. eCollection 2022. Front Genet. 2022. PMID: 35937983 Free PMC article. No abstract available.
References
- Mol Biol Evol. 2002 Feb;19(2):127-37 - PubMed
- Mol Phylogenet Evol. 2003 Jun;27(3):489-503 - PubMed
- Science. 2002 Oct 4;298(5591):187 - PubMed
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources
Miscellaneous