Taklamakania is a genus of asaphidtrilobites of the familyRaphiophoridae that lived during the late Caradoc of Inner Mongolia, China. Like all raphiophorids it is blind, with a headshield (or cephalon) that is subsemicircular, carrying genal spines and a forward directed spine on the central raised area (or glabella), with the front of the glabella inflated and the natural fracture lines (or sutures) of the cephalon coinciding with its margin. It is easily distinguished from most other raphiophorids by the 3 thorax segments. Pseudampyxina, Nanshanaspis, and Kongqiangheia also have only 3 such segments, but all three lack the frontal spine that emanates from the glabellum of Taklamakania species. All other raphiophorid genera have at least 5 thorax segments. Three species, T. tarimensis, T. tarimheensis, and T. xinjiangensis, have been assigned to this genus so far.[1]
The generic name Taklamakania refers to the Taklamakan desert, the area where its fossils were found. The species epithet tarimensis is also a geographic derivation in reference to the Tarim basin, which includes the Taklamakan desert.[1]
Evolutionedit
Adult T. tarimensis are almost indistinguishable from juvenile Ampyxina powelli, and it is assumed that Taklamakania developed from Ampyxina through paedomorphosis.[1]
^ abcZhou, Z.; Webby, B.D.; Yuan, W. (1995). "Ordovician trilobites from the Yingan Formation of northwestern Tarim, Xinjiang, northwestern China". Alcheringa: An Australasian Journal of Palaeontology. 19 (1): 47–72. Bibcode:1995Alch...19...47Z. doi:10.1080/03115519508619098.
^Medvedev, G.S. (2006). (PDF). Entomological Review. 86 (7): 820–839. doi:10.1134/S0013873806070062. S2CID 39347776. Archived from the original (PDF) on 2015-12-22.
This Asaphida-related article is a stub. You can help Wikipedia by expanding it.
taklamakania, genus, asaphid, trilobites, family, raphiophoridae, that, lived, during, late, caradoc, inner, mongolia, china, like, raphiophorids, blind, with, headshield, cephalon, that, subsemicircular, carrying, genal, spines, forward, directed, spine, cent. Taklamakania is a genus of asaphid trilobites of the family Raphiophoridae that lived during the late Caradoc of Inner Mongolia China Like all raphiophorids it is blind with a headshield or cephalon that is subsemicircular carrying genal spines and a forward directed spine on the central raised area or glabella with the front of the glabella inflated and the natural fracture lines or sutures of the cephalon coinciding with its margin It is easily distinguished from most other raphiophorids by the 3 thorax segments Pseudampyxina Nanshanaspis and Kongqiangheia also have only 3 such segments but all three lack the frontal spine that emanates from the glabellum of Taklamakania species All other raphiophorid genera have at least 5 thorax segments Three species T tarimensis T tarimheensis and T xinjiangensis have been assigned to this genus so far 1 TaklamakaniaTemporal range late Caradoc PreꞒ Ꞓ O S D C P T J K Pg NT tarimensisScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ArthropodaClass TrilobitaOrder AsaphidaFamily RaphiophoridaeGenus TaklamakaniaZhang 1979Type speciesTaklamakania tarimensisSpeciesT tarimensis T tarimheensis T xinjiangensis Contents 1 Etymology 2 Evolution 3 Junior homonym 4 ReferencesEtymology editThe generic name Taklamakania refers to the Taklamakan desert the area where its fossils were found The species epithet tarimensis is also a geographic derivation in reference to the Tarim basin which includes the Taklamakan desert 1 Evolution editAdult T tarimensis are almost indistinguishable from juvenile Ampyxina powelli and it is assumed that Taklamakania developed from Ampyxina through paedomorphosis 1 Junior homonym editT lepetzi Paranemia bicolor Ferrer amp Yvinec 2004 a tenebrionid beetle 2 References edit a b c Zhou Z Webby B D Yuan W 1995 Ordovician trilobites from the Yingan Formation of northwestern Tarim Xinjiang northwestern China Alcheringa An Australasian Journal of Palaeontology 19 1 47 72 Bibcode 1995Alch 19 47Z doi 10 1080 03115519508619098 Medvedev G S 2006 To the Systematics and Nomenclature of Tenebrionid Beetles of the Tribes Phaleriini Lachnogyini Klewariini and Blaptini Coleoptera Tenebrionidae PDF Entomological Review 86 7 820 839 doi 10 1134 S0013873806070062 S2CID 39347776 Archived from the original PDF on 2015 12 22 nbsp This Asaphida related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Taklamakania amp oldid 1186448341, wikipedia, wiki, book, books, library,
