. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . er, Madagascan T. beantalyensis Collignon (1956: 83,pi. 10 (fig. 1)) (fig. 6A) has a flatter venter than the Angolan material; it is said to beconnected to contemporaneous T embergeri Collignon (1956: 84, pi. 10 (figs 2-3)) byintermediates. Tetragonites superstes van Hoepen (Kennedy & Klinger, 1911 b: 162, figs 7-8,12A-C) differs from the Angolan material in being more inflated, with only four faintconstrictions at comparable diameter. Santonian Tetragonites mitraikyensis (Collignon)(1956: 86, pi. 11 (fig. 2)) is mo
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . er, Madagascan T. beantalyensis Collignon (1956: 83,pi. 10 (fig. 1)) (fig. 6A) has a flatter venter than the Angolan material; it is said to beconnected to contemporaneous T embergeri Collignon (1956: 84, pi. 10 (figs 2-3)) byintermediates. Tetragonites superstes van Hoepen (Kennedy & Klinger, 1911 b: 162, figs 7-8,12A-C) differs from the Angolan material in being more inflated, with only four faintconstrictions at comparable diameter. Santonian Tetragonites mitraikyensis (Collignon)(1956: 86, pi. 11 (fig. 2)) is more involute, with a cylindrical outline in ventral view(fig. 6B-C). Stratigraphical occurrence Tetragonites glabrus (Jimbo) is a long-ranging species recorded from the Turonian-Lower Campanian interval (Matsumoto 1959) of Japan, California, Angola and Alaska. Family Gaudryceratidae Spath, 1927Genus Gaudryceras de Grossouvre, 1894 Type species Ammonites mitis von Hauer (1866); by the subsequent designation of Boule et al.(1906: 11). 100 ANNALS OF THE SOUTH AFRICAN MUSEUM.
Size: 1604px × 1558px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectnaturalhistory
