Mesothelae
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Ordo: Araneae
Familia: Liphistiidae
Name
Pocock, 1892 – Wikispecies link – Pensoft Profile
Phylogenetic definition
(for details, see Xu et al. submitted[1]). In the analysis of divergence times, we treated Mesothelae as a stem group leading from the root of all spiders to the node-based clade Liphistiidae. Therefore, Mesothelae accommodates the fossil genus Palaeothele Selden, 2000, which does not share one of the synapomorphies of Liphistiidae (single row of teeth on cheliceral fang groove). Although the morphological diagnosis resembles that of Liphistiidae, Mesothelae is inclusive of Liphistiidae but the two groups are phylogenetically not identical.
Composition
Mesothelae includes the crown group Liphistiidae with extant species from East and Southeast Asia, and the fossil Palaeothele montceauensis (Selden 1996a[2], b[3]) from the Upper Carboniferous of Montceau-les-Mines, France around 295 Ma.
Taxon Treatment
- Xu, X; Liu, F; Chen, J; Ono, H; Li, D; Kuntner, M; 2015: A genus-level taxonomic review of primitively segmented spiders (Mesothelae, Liphistiidae) ZooKeys, (488): 121-151. doi
Other References
- ↑ Xu X, Liu F, Cheng R, Chen J, Xu X, Zhang Z, Ono H, Pham D, Norma-Rashid Y, Arnedo M, Kuntner M, Li D (submitted) Extant primitively segmented spiders have recently diversified from an ancient lineage. Proceedings of the Royal Society of London B.
- ↑ Selden P (1996a) Fossil mesothele spiders. Nature 379: 498–99. doi: 10.1038/379498b0
- ↑ Selden P (1996b) First fossil mesothele spider, from the Carboniferous of France. Revue suisse de Zoologie 2: 585–96.
