| mhorn | Дата: Thursday, 05.01.2012, 14:44 | Сообщение # 1 |
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| Mitta V.V. (2011) Ammonites of the genus Cadoceras (Cardioceratidae) from the uppermost Bathonian–lowermost Callovian of the Northern Caucasus (Ingushetia) // Paleontological Journal, Vol. 45, No. 6, P.609–619.
pdf: http://rogov.zwz.ru/2011Mitta_PalJourn6e.pdf
Based on the study of the ammonite collection assembled by A.S. Sakharov from the Middle Jurassic Armkhi Formation of the Gerchyoch Mountain Pass (northern Ingushetia) and on literature sources, the species composition and stratigraphic position of northern Caucasian Cadoceras are discussed. Early Callovian C. tchegemicum Lominadze, C. tschernyschewi Sokolov, and C. suevicum Callomon et Dietl are identified; the name C. loginovae Lominadze, 2004 is synonymized under C. stupachenkoi Mitta, 1998. The Late Bathonian species are identified as C. sakharovi sp. nov. and C. aff. perrarum Voronetz. The presence of Upper Bathonian sediments is substantiated for the northern Caucasus; the theory of the inversion of the Kepplerites beds is shows to be erroneous
Middle Jurassic - Lower Cretaceous ammonites & aptychi
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