Tapashanites
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| Genus: | Tapashantites
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Tapashantites is a genus of ammonoites in the family tapashanitidae of the order ceratitida.[1][2][3] The genus is used as an index ofssil for the changhsingian stage of the late permian because its first apperance is only 42 centimetres (17 in) above the base of the changhsingian (FAD of clarkina wangi)[4]
References
- ^ "Genus Tapashanites". GONIAT.org.
- ^ "Tapashantites". www.Mindat.org.
- ^ "Tapashantites". Palaeobiology database.
- ^ Jin, Yugan; Wang, Yue; Henderson, Charles; Wardlaw, Bruce W.; Shen, Shuzhong; Cao, Changqun. "The Global Boundary Stratotype Section and Point (GSSP) for the base of Changhsingian Stage (Upper Permian)" (PDF).
External links
goniat.org A database for paleozoic ammonoids