کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8895352 | 1630318 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A latest Permian non-reef calcisponge fauna from Laibin, Guangxi, southern China and its significance
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش خاک شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A calcisponge fauna occurs in uppermost Permian Conodont Clarkina meishanensis yini zone of the sequence exposed in the vicinity of Laibin, Guangxi Zhuang Autonomous Region, southern China. The fauna is dominated by one thalamid species, Amblysiphonella vesiculosa de Koninck, 1863, and one new sclerosponge genus and species, Radiofibrosclera laibinensis gen. et sp. nov. They are associated with a few other accessory species, including the thalamid sponges Amblysiphonella laibinensis Deng, 1981, Colospongia sp., Polycystocoelia sp., and the inozoan sponge Acoelia discontinua sp. nov. Though the individuals are abundant, the species diversity is very low. Without common calcisponge components of Changhsingian reefal faunas, the assemblage is interpreted as not a reefal fauna. The water depth at which they dwelled was less than 105Â m, and more probably less than 40Â m. Its occurrence indicates a significant sea-level drop at the end of Late Permian Changhsingian Age.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Palaeogeography - Volume 6, Issue 1, January 2017, Pages 60-68
Journal: Journal of Palaeogeography - Volume 6, Issue 1, January 2017, Pages 60-68
نویسندگان
Ya-Sheng Wu,