{"title":"来自爱尔兰克莱尔郡宾夕法尼亚的垂直嵌入的正立方体鹦鹉螺——一个不寻常的“分心下沉”案例?","authors":"Eamon Doyle","doi":"10.1353/ijes.0.a909326","DOIUrl":null,"url":null,"abstract":"A vertically embedded orthoconic nautiloid is recorded for the first time from the Clare Shale Formation (Carboniferous; Pennsylvanian) of County Clare, Ireland. The specimen is compared to the few recorded examples of vertically preserved orthocones in the rock record and previously proposed models of this unusual preservation are reviewed. A new model of self-propelled accidental emplacement during predator avoidance manoeuvres is proposed as one possible mode of emplacement.","PeriodicalId":35911,"journal":{"name":"Irish Journal of Earth Sciences","volume":"155 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Vertically Embedded Orthoconic Nautiloid From the Pennsylvanian of County Clare, Ireland – An Unusual Case of ‘Distraction Sinking’?\",\"authors\":\"Eamon Doyle\",\"doi\":\"10.1353/ijes.0.a909326\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A vertically embedded orthoconic nautiloid is recorded for the first time from the Clare Shale Formation (Carboniferous; Pennsylvanian) of County Clare, Ireland. The specimen is compared to the few recorded examples of vertically preserved orthocones in the rock record and previously proposed models of this unusual preservation are reviewed. A new model of self-propelled accidental emplacement during predator avoidance manoeuvres is proposed as one possible mode of emplacement.\",\"PeriodicalId\":35911,\"journal\":{\"name\":\"Irish Journal of Earth Sciences\",\"volume\":\"155 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Irish Journal of Earth Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1353/ijes.0.a909326\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Earth and Planetary Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Irish Journal of Earth Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1353/ijes.0.a909326","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
A Vertically Embedded Orthoconic Nautiloid From the Pennsylvanian of County Clare, Ireland – An Unusual Case of ‘Distraction Sinking’?
A vertically embedded orthoconic nautiloid is recorded for the first time from the Clare Shale Formation (Carboniferous; Pennsylvanian) of County Clare, Ireland. The specimen is compared to the few recorded examples of vertically preserved orthocones in the rock record and previously proposed models of this unusual preservation are reviewed. A new model of self-propelled accidental emplacement during predator avoidance manoeuvres is proposed as one possible mode of emplacement.
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