| Haptopoda Fossil range: Upper Carboniferous |
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Scientific classification | ||||||||||||||
|
||||||||||||||
| Binomial name | ||||||||||||||
| Plesiosiro madeleyi Pockock, 1911 |
Haptopoda is an extinct arachnid order known exclusively from a few specimens from the Upper Carboniferous of Coseley, Staffordshire, UK. Arachnids are a class ( Arachnida) of joint-legged Invertebrate Animals in the subphylum Chelicerata. The Carboniferous is a geologic period and system that extends from the end of the Devonian period about 359 The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom, the UK or Britain,is a Sovereign state located It is monotypic, i. e. , has only one species, Plesiosiro madeleyi Pocock, 1911[1]; which was redescribed in 1999[2]. Relationships with other arachnids are obscure. The genus name implies affinities with Opiliones (harvestman), but the most recent study recognises a group named Schizotarsata Shultz, 2007[3] comprising Haptopoda, Amblypygi (whip spiders), Uropygi (whip scorpions) and Schizomida (schizomids). Harvestmen are eight-legged Invertebrate animals belonging to the order Opiliones (formerly Phalangida) in the class Arachnida in the subphylum Amblypygi is an order of Invertebrate Animals belonging to the class Arachnida in the Subphylum Chelicerata of the A uropygid, commonly known as a whip scorpion, is an invertebrate animal belonging to the former order "Uropygi" in the class Arachnida, Schizomida is an order of Arachnids superficially resembling spiders and generally less than 5mm in length All share the character of a subdivided tarsus (or 'foot').
Names
The order has also been called Haptopodida, the ending -ida originated when Petrunkevitch (1955)[4] tried to standardize the endings of the arachnid orders, which is unnecessary and unwarranted according to the ICZN. Alexander Ivanovitch Petrunkevitch (1875 in Pliski near Kiev &ndash 1964 Yale) was an eminent Arachnologist of his time "ICZN" redirects here It is also sometimes used for the International Code of Zoological Nomenclature in error
Plesiosiro means "close to Siro", which is a genus of cyphophthalmid (Cyphophthalmi) harvestman that in overall appearance resembles the reconstructed body plan of the haptopods. For the Italian saint of this name see Syrus of Pavia. See also San Siro and San Siro (Como. The Cyphophthalmi are a suborder of Harvestmen, with about 36 genera and more than hundred described species
Haptopoda originates from Greek "haptos" (= tangible, subject to the sense of touch) + "pous, podos" (= foot) and refers to its quite long front pair of legs with their subdivided tips which look as though they might have been used to 'feel' their way around in front of the animal.
Subtaxa included
The haptopods have a single family which has a single genus and a single species:
Plesiosironidae Pocock, 1911
- Plesiosiro Pocock, 1911
-
- Plesiosiro madeleyi Pocock, 1911
References
- ^ Pocock, R. I. 1911. A monograph of the terrestrial Carboniferous Arachnida of Great Britain. Monographs of the Palaeontographical Society, London, 84 pp.
- ^ Dunlop, J. A. 1999. Transactions of the Royal Society of Edinburgh: Earth Sciences, 90: 29-47.
- ^ Shultz, J. W. 2007. Zoological Journal of the Linnean Society 150: 221-265.
- ^ Petrunkevitch, A. (1955). Arachnida, p. 42-162. In R. C. Moore (ed. ), Treatise on Invertebrate Paleontology, Pt. P, Arthropoda 2. Geological Society of America and University of Kansas Press, Lawrence.
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic