Talk:Mandible (arthropod mouthpart)
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[edit]I'm pretty sure SOME chelicerae are opposable and act as pincers.
New Mandibulata subphylum
[edit]If Chelicerata get their own article, I think Mandibulata should as well to encompass the crustaceas, myripodas, and insectas. —Preceding unsigned comment added by 99.229.128.125 (talk) 20:09, 21 October 2007 (UTC)
Tetraconata and Myriochelata are here to stay
[edit]As of April 2008, it seems most probable that (Hexopoda + Crustacea) will be paired off against (Chelicerata (with Pycnogonida) + Myriopoda). The group that would unite myriopods (centipeds and millipeds) with hexopods (to the exclusion of chelicerates) was not recovered in moleclar studies.
(See: Casey W. Dunn, Andreas Hejno, David Q. Matus, Kevin Pang, William E. Browne, Stephen A. Smith, Elaine Seaver, Greg W. Rouse, Matthias Obst, Gregory D. Edgecombe, Martin V. Sørensen, Steven H. D. Haddock, Andreas Schmidt-Rhaesa, Akiko Okusu, Reinhardt Møbjerg Kristensen, Ward C. Wheeler, Mark Q. Martindale & Gonzalo Giribet (2008). Broad phylogenomic sampling improves resolution of the animal tree of life. Nature, Vol 452: 746-750 (10 April 2008) and included references.)
This means that Mandibulata is out, as a discarded hypothesis, but we should not worry. The Arthropoda surely have more surprises in store for us.--Wloveral (talk) 04:41, 1 May 2008 (UTC)
- Some recent molecular studies have supported Mandibulata instead of Myriochelata/Paradoxopoda.[1][2] The matter may not be finally settled, but Mandibulata is a strong contender as a clade.
- ^ Rota-Stabellia, Omar; Telford, Maximilian J. (2008). "A multi criterion approach for the selection of optimal outgroups in phylogeny: Recovering some support for Mandibulata over Myriochelata using mitogenomics". Molecular Phylogenetics and Evolution. 48 (1): 103–111. doi:10.1016/j.ympev.2008.03.033.
- ^ Regier, Jerome C.; Shultz, Jeffrey W.; Zwick, Andreas; Hussey, April; Ball, Bernard; Wetzer, Regina; Martin, Joel W.; Cunningham, Clifford W. (2010). "Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". nature. 463: 1079–1084. doi:10.1038/nature08742.
- Cheers, Cephal-odd (talk) 17:20, 3 July 2010 (UTC)
Categories
[edit]This is in Category:Arthropod anatomy, but what about a "mouth" related category, e.g. Category:Mouth? Or is that just for humans and close-ish relatives? Richard001 (talk) 23:00, 18 October 2009 (UTC)
Separate Mandibulata and Mandible articles?
[edit]It seems unusual to have a major taxon (Mandibulata) combined with an article about an anatomical feature (arthropod mandibles). If we have enough information about mandibles to warrant its own article, I think we should separate the text about mandibulates into a separate article about that taxon, especially since Mandibulata has received new support from molecular phylogeny. Does anyone object?
- The above was added by me at 16:53, 3 July 2010. I forgot to sign it at the time - Cephal-odd (talk) 02:53, 1 September 2010 (UTC)
- The articles were separated. Yet the current one might be merged with mandible (insect). And the above discussion now belongs to the Mandibulata article. Mo5b (talk) 18:19, 8 December 2010 (UTC)