Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 24-25. 2007. (Budapest, 2007)
Measurements H HL HP D WP AA AL BHU2001I49 Plate I: 6 30.0* 7.5 7.0 8.0 6.0 8° BHU2Ü01I51 Plate I: 1-2 41.0** 11.0 11.0 10.5 5.5 8° BHU2001I 52 Plate I: 3-4 38.0** 11.5 9.0 9.5 5.0 9° BHU2001I 53 30.5** 8.0 6.0 8.5 5.5* 9° BHU2001I54 Plate I: 5 18.5** 6.0 5.5 5.5 4.0 9° Description — High turriculate form with numerous whorls of concave outer surface. Peripher)- (and lower rim of spire whorls) sharply angular keel, suture of subsequent whorl joins just to top of keel resulting in telescopelike shell form. Base conical, anomphalous; columella short and strong. Aperture axially elongate quadrangle with leftward inclined, short siphonal canal. Foot of columella forms low and wide inner fold at apertural end of siphonal outlet. Weak but distinct, sharp inner fold terminates at corner of parietal region and columella. No other inner fold observed. Growth-lines feebly prosocyrt and feebly opisthocline. Single spiral thread appears below midwhorl on some specimens in different length of development. Remarks — The configuration of the inner folds corresponds to that of Turbinea PCHELINCEV, 1965 (see also WlECZOREK 1979, p. 301). A similar species to Turbinea khadirensis n. sp. is T. elongata (BRONN ex. VOLTZ, 1836) from the European Late Jurassic that has narrower spiral angle (7°), therefore consisting of more whorls. Its whorls are concave as a whole but with wide, flat belt between marginal carinae, while Turbinea khadirensis n. sp. has completely concave (evenly arched) surface. Turbinea elongata has dense spiral lineation on the whorls that is lacking from Turbinea khadirensis n. sp. Another Late Jurassic species, Turbinea turriculata (D'ORBIGNY, 1852) has a needle shape with 5° spiral angle and much higher whorls. Distribution in Kachchh — Hadibhadang Shale Member, Khadir Island, Bathonian. (49) Kala Doongar Sandstone Member (Bajocian—Bathonian), Pachchmaipir section, Pachcham Island. * * * Acknowledgements — The authors are indebted to Prof. F. T. FÜRSICH (Würzburg), providing complementary material, and information to the studies on the Kachchh gastropods. The field works and the consultadons between the authors were supported in the frame of the HungarianIndian bilateral cultural exchange program in 2000-2001 (IND-4/99) and the N° T031873 project of the Hungarian Scientific Research Fund. We are thankful for Daniel SZABÓ for his help in preparation of the photo plate. References BROW (1836): Übersicht und Abbildungen der bis bekannten Nerinea-Arten. — Neues Jahrbuch für Mineralogie, Geologie und Petrefactenkunde, 4: 544-566, Pl. VI. COSSMANN, M. (1924): Extensions dans les Deux-Sévres de la Faune du Callovien de Montreuil-Bellay. — Mémoires de la Société Géologique de Bretagne, 1: 1-53, Pis 1-7 Cox, L. R. (1965): Jurassic Bivalvia and Gastropods from Tanganyika and Kenya. — Bulletin of the British Museum of Natural Histo/y, {Geolog}], Supplement 1: 1—213. DAS, S. S., BARDHAN, S. & LAHIRI, T. C. (1999): The Late Bathonian gastropod fauna of Kutch, western India - a new assemblage. — Paleontological Research, 3(4): 268—286. FlSCHF.R, J.-C. & WEBFR, G (1997): I 'olume II, Gastéropodes Jurassiques. — In: FISCHER, J.-C. (ed.). Révision critique de la Paléontologie Française, incluant la réédition de la original. — pp. 300+622, Pis 451; Paris, Masson & Muséum national d'Histoire naturelle. GOLDFUSS A. (1841-44): Petrefacta Germaniae. — (1) 1-20, Pis 166-171 [ 1841 ] ; (2) 21-28, Pis 172-195 [1844] ; (3) 29-128, Pis 196-200 [1844] ; Düsseldorf. HEBERT, F. & DFSI.ONGCHAMPS, E. (1860): Mémoire sur les fossiles de Montreuil-Bellay (Maine-et-Loire). — Bulletin, S oáété linnéenne de Normandie, 5: 153-240, Pis 1-9. JAITLY, A. K, SXAB('), J. & FÜRSICH, F. T. 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Part II: Discohelicidae, Neritomorpha, Caenogastropoda. — Fragmenta Palaeontologica Hungarica, 22: 9-26 VOLTZ, M. (1836): Über das Genus Nerinea. — Neues Jahrbuch für Mineralogie, Geologie und Petrefactenkunde, 4: 359-543. WlECZOREK, |. (1979): Upper Jurassic Nerineacean gastropods from the Holy Cross Mts (Poland). —Acta Palaeontologica Polonica, 24(3): 299-350, PL 1-12.