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首页> 外文期刊>Geodiversitas >New observations on the squamation patterns of articulated specimens of Loganellia scotica (Traquair, 1898) (Vertebrata: Thelodonti) from the Lower Silurian of Scotland
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New observations on the squamation patterns of articulated specimens of Loganellia scotica (Traquair, 1898) (Vertebrata: Thelodonti) from the Lower Silurian of Scotland

机译:来自苏格兰下志留纪的对虾Loganellia scotica(Traquair,1898)(Vertebrata:Thelodonti)的关节标本的鳞状模式的新观察

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摘要

ArticulatedsquamationsofLoganelliascotica(Traquair,1898)fromtheLowerSilurianLesmahagowinliersofsouthernScotlandhavebeenstudied.Theyincludesevenarticulatedspecimens,threeofthemrepresentingcompletethelodontfossils,andfourpartiallypreservedpostpectoral,precaudalandcaudalpartsoftheexoskeleton.Allthefivemaintypesofthelodontscalesthatisrostral,cephalo-pectoral,postpectoral,precaudalandpinnalsacles,aswellasrespectivesquamationpatternshavebeenobservedonarticulatedspecimens.Thespecificorbital,branchial,andbucco-pharyngealscales,characteristicofL.scotica,havenotbeenfoundduetothepoorornon-preservationoftheseparticularareaswithinthespecimensstudied.Tailmorphologyandsquamationpatternofthecaudalfinhavebeenstudiedwithparticularattention,andtheconstitutionofthecaudalfinrayshasbeenanalyzed.TherostralsquamationpatternisarguedtobecharacteristictoL.scotica.
机译:ArticulatedsquamationsofLoganelliascotica(奎尔,1898)fromtheLowerSilurianLesmahagowinliersofsouthernScotlandhavebeenstudied.Theyincludesevenarticulatedspecimens,threeofthemrepresentingcompletethelodontfossils,andfourpartiallypreservedpostpectoral,precaudalandcaudalpartsoftheexoskeleton.Allthefivemaintypesofthelodontscalesthatisrostral,头孢-胸鳍,postpectoral,precaudalandpinnalsacles,aswellasrespectivesquamationpatternshavebeenobservedonarticulatedspecimens.Thespecificorbital,鳃,andbucco-pharyngealscales,characteristicofL.scotica,havenotbeenfoundduetothepoorornon-preservationoftheseparticularareaswithinthespecimensstudied.Tailmorphologyandsquamationpatternofthecaudalfinhavebeenstudiedwithparticularattention,andtheconstitutionofthecaudalfinrayshasbeenanalyzed.TherostralsquamationpatternisarguedtobecharacteristictoL。树皮。

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