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您的检索式：作者名="Joseph P.Botting"
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| 1 | Tetraradial symmetry in early poriferans显示文摘Here is currently little consensus on the branching order and phyletic status of the oldest metazoan groups, but sponges are widely believed to be the earliestbranching living metazoans. Porifera are thought to have diverged before the emergence of developmental characters typical of Eumetazoa, such as well-defined symmetry; extant sponges show radial symmetry of indeterminate high order, or none, combined with polarisation along the axis. In contrast, other early-branching phyla include bilateral and tetraradial(Cnidaria) and biradial(Ctenophora) symmetry, or none(Placozoa). A variety of prismatic early fossil sponges had shown here where the shared symmetry has been overlooked, and also describe structural tetraradial symmetry in Cambrian sponges from South China. Based on this study, this symmetry is likely to have been a primitive feature of sponges, and that the earliest-known fossil sponges were highly organised, cellularly integrated individuals whose body form was under strict genetic control. | Joseph P.Botting Xunlai Yuan Jih Pai Lin | 2014 | Chinese Science Bulletin2014，59，7： | 1 |
| 2 | 奥陶纪末生物大灭绝后海绵动物生态系统的繁荣显示文摘文章简介发生于奥陶纪末的生物大灭绝事件是显生宙以来的第一次大规模生物灭绝事件。在该次事件后,海洋生物世界一片凋零。在经历残存期后,虽然陆续开始生物复苏,但由于灭绝期和残存期的时限短暂,记录残缺不全,人们往往难以发现足够证据来重建当时的场景。 | Joseph P.Botting Lucy A.Muir 张元动 Xuan Ma Junye Ma Longwu Wang Jianfang Zhang Yanyan Song Xiang Fang | 2018 | 科学新闻2018，0，4： | 0 |
| 3 | Coupling of the recovery of earliest Silurian sponges and ocean redox conditions:Evidence from South China显示文摘Many aspects of the Late Ordovician Mass Extinction(LOME)aftermath and recovery have been puzzling due to heterogeneities in tempo and triggering mechanisms.Benthic fossil groups,which are the most severely affected by oxidative stress,offer the best opportunities for understanding both biological and ecological recovery after the LOME.In recent studies,deep-water sponge assemblages(which may have had high physiological tolerance to oxygen deviations)have been reported widely across South China in the immediate aftermath of the extinction interval.In order to further explore the lateral and temporal distributions of sponges,and ecological effects of benthic recovery during this critical interval,this study presents new Llandovery sponge assemblages recovered from two sections in Hunan Province,South China,accompanied by geochemical analyses.The sponge communities are preserved by pyritic spicule replacements and shows a relatively deep-water affinity(estimated around 60-150 m in depth)comparable to several previously reported assemblages in South China,and consistent with the observed graptolite ecology.Geochemical analysis of total organic carbon(TOC)and major and trace element composition in both sections show similar trends,indicating a shift in redox state of the bottom-water from persistent anoxia or intermittent euxinia in the earliest Rhuddanian,becoming oxygenated in the early Aeronian.Based on the present study and previous biological and geochemical data from South China,the distribution of early Silurian sponge assemblages in South China demonstrates a gradual expansion towards deeper regions when ocean redox conditions ameliorated.This study confirms the continuity of the end-Ordovician sponge faunas and taxa,both laterally across South China,and temporally through the early Silurian.The pioneering colonization of sponges in low-oxygen environments after the LOME may have set the stage for the subsequent recovery of other benthic organisms. | Yong Wang Joseph P.Botting Jing-Qiang Tan Ming Li Wen-Hui Wang | 2023 | Journal of Palaeogeography2023，12，2： | 0 |
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