• Berriasella jacobi is an extinct species of ammonite from the late Jurassic and early Cretaceous. Because of its unique stratigraphic position, it is used...
    1 KB (117 words) - 03:40, 15 May 2024
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    boundary has often been placed as the first appearance of the ammonite Strambergella jacobi, formerly placed in the genus Berriasella, but its use as a stratigraphic...
    95 KB (9,855 words) - 21:25, 17 September 2024
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    boundary has often been placed as the first appearance of the ammonite Strambergella jacobi, formerly placed in the genus Berriasella, but its use as a stratigraphic...
    231 KB (24,898 words) - 17:27, 30 August 2024
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    alpina. Some authors regard B. jacobi as instead belonging to the genus Strambergella. Berriasella, named by Uhlig, 1905, is known from the late Upper Jurassic...
    6 KB (329 words) - 21:25, 3 July 2024