Pliensbachian corals from the Western Tethys
Pliensbachian corals from the Western Tethys
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来自西特提斯的普林斯巴阶珊瑚
DOI：
10.5252/geodiversitas2021v43a22
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发表时间：
2021
期刊：
影响因子：
1.8
通讯作者：
B. Lathuilière
中科院分区：
文献类型：
--
作者：
Raphäel Vasseur;B. Lathuilière
西特提斯晚晚纪是中、晚侏罗世珊瑚多样性的摇篮。这就是修订和增强的普连斯巴氏期和托瓦西亚期珊瑚分类学所揭示的。目前对Pliensbachian珊瑚的新分类研究描述了分布在41属和20个已确定科的66种。包括4个新属：Podosmilia n. gen.、Tubulosmilia n. gen.、Prismastrea n. gen.和Spongiocoenia n. gen.；还有20个新物种：水曲霉、桂古霉、双歧瓢虫、毛毛瓢虫、萼原瓢虫、大原瓢虫、次瓢虫、前体真菌、圆尾瓢虫、长尾瓢虫、水曲霉、水曲霉、水曲霉、水曲霉、副水曲霉、副水曲霉、杨木瓢虫考虑到本研究对上个世纪文献中由于类型学方法导致的物种多样性高估的修正给予了特别的关注，那么多的新物种乍一看似乎令人惊讶。许多以前被认为在T-J边界灭绝的分类群在Pliensbachian时代仍然存在，许多属仅在Pliensbachian时代已知。此外，Isastrea、Montlivaltia和Thamnasteria等少数属也在这一阶段首次出现。尽管这些属在Pliensbachian时期丰度较低，但它们在中、上侏罗统群落中的比例将显著增加。大多数收集到的珊瑚组合来自于碳酸盐岩台地情况下的珊瑚礁和底部珊瑚组合。
ABSTRACT Late Liassic in the Western Tethys has been the cradle of Middle and Late Jurassic diversity of corals. This is what revised and enhanced taxonomy of corals from Pliensbachian and Toarcian stages reveals. The current new taxonomic study of Pliensbachian corals describes 66 species distributed in 41 genera and 20 identified families. It includes four new genera: Podosmilia n. gen., Tubulosmilia n. gen., Prismastrea n. gen. and Spongiocoenia n. gen.; and 20 new species: Axosmilia amellagouensis n. sp., Apocladophyllia guigouensis n. sp., Coryphyllia bicuneiformis n. sp., Coryphyllia capillaria n. sp., Proleptophyllia calix n. sp., Proleptophyllia magna n. sp., Proleptophyllia subphaceloida n. sp., Fungiaphyllia praecursor n. sp., F. rotunda n. sp., Margarosmilia dividenda n. sp., Paravolzeia calabrensis n. sp., Distichophyllia pauciseptata n. sp., Retiophyllia zizensis n. sp., Epismiliopsis paraeudesi n. sp., Phacelostylophyllum mg. arbustulum n. sp., Podosmilia horologium n. gen., n. sp., Stylophyllopsis bovista n. sp., S. veracolumella n. sp., Tubulosmilia regularis n. gen., n. sp. and Prismastrea organum n. gen., n. sp. So many new species appear surprising at first sight considering the special attention paid in this study to the correction of species diversity overestimations that took place in the literature of the last century as a consequence of a typological approach. Many taxa previously considered extinct at T-J boundary were still living during Pliensbachian times, various genera are known only for Pliensbachian. In addition, a small number of genera namely Isastrea, Montlivaltia and Thamnasteria have their first occurrence during this stage. Despite their low abundance during Pliensbachian, these genera will significantly increase their part in Middle and Upper Jurassic communities. Most collected coral assemblages come from both reefs and level-bottom assemblages found in carbonate platform situation.