SpletGlobal Biodiversity Information Facility. Free and Open Access to Biodiversity Data. SpletSagenites (Trachysagenites) shastensis Smith p. 62 figs. Pl 12, figs 9-11 References Smith J. P. (1927) Upper Triassic marine invertebrate faunas of North America, United States …
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SpletLeconteiceras, Sagenites (Trachysagenites); A-cestidae: Arcestes, restricted to the upper part of the section. Within the Tropites subbullatus zone, this assemblage seems to represent the subzone of T. dilleri. No new specific names are proposed but ample use is made of open nomen-clature. The material described is profusely il-lustrated. SpletTrachysagenites cf. beckei is the last representative at the Marlstone member (Tuvalian) of Aşağiyaylabel. During the Lower Carnian (Julian), Trachyceratinae generally flourished within the whole Tethys, as also observable at Aşağiyaylabel (Carbonate member, Julian 2). richmond dale church of god live
Taxon Details MCZbase
SpletTrachonitis signifies the land associated with the trachon, "a rugged stony tract." There are two volcanic districts South and East of Damascus, to which the Greeks applied this name: that to the Northwest of the … SpletVerschiedene Tropites bullati, der Ammonit in Bildmitte am linken Ende der Stufe = Trachysagenites erinaceus Bild 8: Zone des Trachyceras austriacum Protrachyceras sp. mit Coroceras sp. links oben und Trachyceras sp. rechts oben Bild 9: Zone des Trachyceras austriacum von links; Hypocladiscites subtornatus und Trachyceras sp. Trachyte is an extrusive igneous rock composed mostly of alkali feldspar. It is usually light-colored and aphanitic (fine-grained), with minor amounts of mafic minerals, and is formed by the rapid cooling of lava enriched with silica and alkali metals. It is the volcanic equivalent of syenite. Trachyte is common wherever alkali magma is erupted, including in late stages of ocean island volcanism and in continental rift valleys, above mantle plumes, and in areas of back-arc extension… richmond dales april fools gala 2022