Chiosella
''Chiosella'' is an extinct conodont genus. The base of the Anisian stage (also the base of the Middle Triassic series and the top of the Olenekian) is sometimes laid at the first appearance of ''Chiosella timorensis'' in the List of Global Boundary Stratotype Sections and Points, stratigraphic record.The elusive origin of Chiosella timorensis (Conodont Triassic). N Goudemand, MJ Orchard, H Bucher and J Jenks, Geobios, Volume 45, Issue 2, March–April 2012, Pages 199–207, References External links * * Conodont genera Middle Triassic fish Triassic conodonts Anisian life {{conodont-stub ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Anisian
In the geologic timescale, the Anisian is the lower stage (stratigraphy), stage or earliest geologic age, age of the Middle Triassic series (stratigraphy), series or geologic epoch, epoch and lasted from million years ago until million years ago. The Anisian Age succeeds the Olenekian Age (part of the Lower Triassic Epoch) and precedes the Ladinian Age. Stratigraphic definitions The stage and its name were established by Austrian geologists Wilhelm Heinrich Waagen and Carl Diener in 1895. The name comes from ''Anisus'', the Latin name of the river Enns (river), Enns. The original type locality (geology), type locality is at Großreifling in the states of Austria, Austrian state of Styria. The base of the Anisian Stage (also the base of the Middle Triassic series) is sometimes laid at the first appearance of conodont species ''Chiosella, Chiosella timorensis'' in the stratigraphic record. Other stratigraphers prefer to use the base of magnetic chronozone MT1n. There is no accept ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]