Biloclymenia is a genus in the ammonoid order Clymeniida which is characterized by a dorsal retrosiphonitic siphuncle with long adapically pointing septal necks.
The shell of shell Biloclymenia is thickly discoidal, more or less involute, with a moderately wide umbilicus, lightly thickened sides and rounded venter. The shell is surface smooth, covered merely by growth lines which form two salients. The ventral lobe of the suture is wide and divided in two with a secondary lobe at the top of median saddle. Additional sutural elements are two umbilical, an inner lateral and a dorsal lobe.
The Treatise on Invertebrate Paleontology (Part L 1957) includes Biloclymenia in the Wocklumariidae which is derived from Hexaclymeniidae. Saunders et al(1999) expands upon this theme and puts Bilocymenia and Biloclymeniidae in the Sellaclymeniaceae (suborder Gonioclymeniina), indicates the following phylogenetic progression beginning with Hexaclymenia. Hexaclymenia (Hexaclymeniidae) --> Uraloclymenia (Miroclymeniidae) --> Kiaclymenia (Biloclymeniidae) --> Bioloclymenia.
Referencesedit
Notes
^Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28.
biloclymenia, genus, ammonoid, order, clymeniida, which, characterized, dorsal, retrosiphonitic, siphuncle, with, long, adapically, pointing, septal, necks, temporal, range, famennian, preꞒ, nscientific, classificationdomain, eukaryotakingdom, animaliaphylum, . Biloclymenia is a genus in the ammonoid order Clymeniida which is characterized by a dorsal retrosiphonitic siphuncle with long adapically pointing septal necks BiloclymeniaTemporal range Famennian 1 PreꞒ Ꞓ O S D C P T J K Pg NScientific classificationDomain EukaryotaKingdom AnimaliaPhylum MolluscaClass CephalopodaSubclass AmmonoideaOrder ClymeniidaFamily BiloclymeniidaeGenus BiloclymeniaSchindewolf 1923Species 2 B aktubensis B australis B bilobata B dubia B nebulosaThe shell of shell Biloclymenia is thickly discoidal more or less involute with a moderately wide umbilicus lightly thickened sides and rounded venter The shell is surface smooth covered merely by growth lines which form two salients The ventral lobe of the suture is wide and divided in two with a secondary lobe at the top of median saddle Additional sutural elements are two umbilical an inner lateral and a dorsal lobe The Treatise on Invertebrate Paleontology Part L 1957 includes Biloclymenia in the Wocklumariidae which is derived from Hexaclymeniidae Saunders et al 1999 expands upon this theme and puts Bilocymenia and Biloclymeniidae in the Sellaclymeniaceae suborder Gonioclymeniina indicates the following phylogenetic progression beginning with Hexaclymenia Hexaclymenia Hexaclymeniidae gt Uraloclymenia Miroclymeniidae gt Kiaclymenia Biloclymeniidae gt Bioloclymenia References editNotes Sepkoski Jack 2002 Sepkoski s Online Genus Database Retrieved 2014 05 28 Paleobiology Database Biloclymenia Retrieved 2014 05 28 Web linksGoniat Biloclymenia Entry Saunders Work and Nikolaeva 1999 Evolution of Complexity in Paleozoic Ammonoid Sutures Supplementary material Science MagazineBibliographyTreatise on Invertebrate Paleontology Part L Mollusca 4 Cephalopoda Ammoidea Geological Soc of America and University of Kansas Press 1957 nbsp This Clymeniida related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Biloclymenia amp oldid 1196757876, wikipedia, wiki, book, books, library,
