Sentence examples for Gzhelian from high-quality English sources.

  • The Kasimovian Stage is underlain by the Moscovian Stage and overlain by the Gzhelian Stage of the Pennsylvanian Subsystem.

  • In contrast, the top of the Gzhelian, and thus the Carboniferous-Permian boundary, has been demarcated by a GSSP at the Aidaralash Creek section in northern Kazakhstan.

  • Gzhelian Stage, Gzhelian also spelled Gzelian, last of four internationally defined stages of the Pennsylvanian Subsystem of the Carboniferous System, encompassing all rocks deposited during the Gzhelian Age (303.7 million to 298.9 million years ago).

  • However, working groups of the International Commission on Stratigraphy (ICS) now believe that using the first appearances of the conodont (primitive chordates with tooth-shaped fossil remains) Idiognathodus simulator is more useful for the global correlation of basal Gzhelian strata.

  • The Mississippian Subsystem is made up of the Tournaisian (deposited 358.9 to 346.7 million years ago), Viséan (346.7 to 330.9 million years ago), and Serpukhovian (330.9 to 323.2 million years ago) stages, whereas the Bashkirian (323.2 to 315.2 million years ago), Moscovian (315.2 to 307 million years ago), Kasimovian (307 to 303.7 million years ago), and Gzhelian (303.7 to 298.9 million years ago) stages make up the Pennsylvanian Subsystem.

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        • 5 sentence examples for Gzhelian from Encyclopedia Britannica