Plesiosiro
Plesiosiro Temporal range:
| |
---|---|
CT scan | |
Life restoration | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Chelicerata |
Class: | Arachnida |
Clade: | Tetrapulmonata |
Order: | †Haptopoda Pocock, 1911 |
Genus: | †Plesiosiro Pocock, 1911 |
Species: | †P. madeleyi
|
Binomial name | |
†Plesiosiro madeleyi Pocock, 1911
|
Plesiosiro is an extinct
The original fossils have been redescribed in detail by Alexander Petrunkevitch in 1949[4] and Dunlop in 1999.[2] A supposed example from the Coal Measures of Lancashire is a misidentification.[2]
Relationships
Plesiosiro means "close to Siro", which is a genus of cyphophthalmid (Cyphophthalmi); the most primitive group of the living harvestmen (Opiliones). These harvestmen do, in some ways, resemble the reconstructed body plan of the haptopods.
Revisions have confirmed that Haptopoda should be treated as a separate and independent order. A 2007 study tentatively recognised a group named
Names
The order has also been called Haptopodida; the ending -ida originated when Petrunkevitch (1955)[9] tried to standardize the endings of the arachnid orders.
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.
References
- ^ PMID 25405073.
- ^ ISSN 0263-5933.
- ^ Reginald Innes Pocock (1911). A Monograph of the Terrestrial Carboniferous Arachnida of Great Britain. Monographs of the Palaeontographical Society, London. pp. 1–84.
- Transactions of the Connecticut Academy of Arts and Sciences. 37: 69–315.
- .
- S2CID 4239867.
- PMID 28431496.
- PMID 27030415.
- ^ Alexander Petrunkevitch (1955). "Arachnida". In R. C. Moore (ed.). Part P, Arthropoda 2. Treatise on Invertebrate Paleontology. Lawrence: Geological Society of America and University of Kansas Press. pp. 42–162.