Chiosella

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Chiosella
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class:†Conodonta
Genus:†Chiosella
Kozur 1990 [1]
Species
  • †Chiosella gondolelloides
  • †Chiosella timorensis

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 stratigraphic record. [2]

In the geologic timescale, the Anisian is the lower stage or earliest age of the Middle Triassic series or epoch and lasted from 247.2 million years ago until 242 million years ago. The Anisian age succeeds the Olenekian age and precedes the Ladinian age.

In the geologic timescale, the Olenekian is an age in the Early Triassic epoch or a stage in the Lower Triassic series. It spans the time between 251.2 Ma and 247.2 Ma. The Olenekian follows the Induan and is followed by the Anisian.

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References

  1. ↑ Kozur, Cour Forschungsinst Senckenb, 1990, volume 117, page 414
  2. ↑ The elusive origin of Chiosella timorensis (Conodont Triassic). N Goudemand, MJ Orchard, H Bucher andJ Jenks, Geobios, Volume 45, Issue 2, March–April 2012, Pages 199–207, doi : 10.1016/j.geobios.2011.06.001
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