Biology:Palaeothele

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Short description: Extinct genus of spiders

Palaeothele
Temporal range: Stephanian
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Suborder: Mesothelae
Genus: Palaeothele
Species:
P. montceauensis
Binomial name
Palaeothele montceauensis
(Selden, 1996)[1]

Palaeothele is an extinct genus of mesothele spiders, with only one known species Palaeothele montceauensis.[1] Two fossils were found at Montceau-les-Mines, France, in ironstone concretion deposits of Late Carboniferous (Stephanian) age, about 304 to 299 million years ago.[2]

Taxonomy

The genus was first named as Eothele by Paul A. Selden in 1996. However, this name had already been used for a Cambrian brachiopod, so in 2000, Selden proposed the replacement name Palaeothele. Palaeothele is derived from the Greek παλαιός, "ancient", and θηλή, "nipple" – a common ending for spider names, referring to their spinnerets.[3] The species name montceauensis refers to the location where the fossils were found.[2]

Phylogeny

In 1996, Selden suggested the relationships shown in the cladogram below. (At the time, Attercopus was thought to be a spider; it is now considered to belong to a related but separate group, the Uraraneida.) Palaeothele is shown as sister to the modern genus Heptathela since they both have "tracheal sacs", structures adjacent to the posterior book lungs.[2]

Attercopus (uraraneid)

Araneae
Mesothelae

Palaeothele

Heptathela (modern mesothele spiders)

Liphistius (modern mesothele spiders)

Opisthothelae (other spiders)

References

  1. 1.0 1.1 Dunlop, J.A.; Penney, D.; Jekel, D. (2016), "A summary list of fossil spiders and their relatives, version 16.5", World Spider Catalog (Natural History Museum Bern), http://www.wsc.nmbe.ch/resources/fossils/Fossils16.5.pdf, retrieved 2016-03-31 
  2. 2.0 2.1 2.2 Selden, P.A. (1996), "First fossil mesothele spider from the Carboniferous of France", Revue suisse de Zoologie hors série: 585–596, http://www.paulselden.net/uploads/7/5/3/2/7532217/eothele.pdf, retrieved 2016-03-18 
  3. Selden, P.A. (2000), "Palaeothele, replacement name for the fossil mesothele spider Eothele non Rowell", Bulletin of the British Arachnological Society 11 (292), http://www.paulselden.net/uploads/7/5/3/2/7532217/paleothele.pdf, retrieved 2016-03-31 

Wikidata ☰ Q3360797 entry