Pub Date : 2019-11-22DOI: 10.1080/02693445.2019.1687983
I. Slipper
ABSTRACT Ostracod assemblages from 51 samples collected through the Turonian Stage of the Late Cretaceous from three cliff sections near Dover, Kent, south-east England comprise 105 species group taxa. These are described and illustrated by stereo-pair scanning electron microscopy. Part 1 is concerned with the suborders Cladocopina, Platycopina, Sigilliocopina, Bairdiocopina and Cypridocopina. The stratigraphic occurrence has been determined by examining 7877 specimens, assigned to 31 species group taxa arranged in 10 genera. Of these, 18 are referred to previously described taxa, five species and two subspecies are here described as new, and six species are left in open nomenclature, two of which are compared to previously described taxa. A modified freeze-thaw method is detailed for processing the Turonian chalks.
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Pub Date : 2019-04-02DOI: 10.1080/02693445.2018.1537165
L. Cocks
Abstract Diverse Early Silurian (Llandovery) rocks with shelly benthic faunas have been known for nearly 200 years from Wales and the Welsh Borderland of England, and this monograph revises the Llandovery (Rhuddanian, Aeronian and Telychian) brachiopods from those areas. They are the dominant fossils at most localities in the shelf rocks encircling the deeper-water Welsh Basin. Much of the Aeronian and Telychian fauna has not been revised for over a century, but the Early Llandovery (Rhuddanian) brachiopods are better-known and are thus only summarised here. Only Aeronian and Telychian rocks occur in the Welsh Borderland: the Pentamerus Beds and Hughley Shale Formation in Ape Dale, and other formations encircling the Longmynd-Shelve Inlier, all in Shropshire; and more in the central and southern Welsh Borderland in Worcestershire, Herefordshire and Gloucestershire. Most of those Welsh Borderland formations are unconformable upon rocks of Ordovician and older ages (the western sectors of the Midlands Microcraton), which all then formed part of Avalonia. The latter was a sector of the Baltica-Avalonia continent which had become united just before Ordovician–Silurian boundary time. In contrast, the Llandovery rocks in Wales, which include the type Llandovery area, as well as others in Pembrokeshire, Carmarthenshire and Powys, include those of Rhuddanian as well as Aeronian and Telychian ages. Many brachiopod species originally described in the nineteenth century are revised with updated generic attributions, and some are photographed for the first time. The total number of species and subspecies recognised is 154, of which 29 are in open nomenclature. Sixty-eight pre-existing names are synonymised. New taxonomic work includes the elevation of the Family Leptocoeliidae Boucot & Gill, 1956, to the new Superfamily Leptocoelioidea within the Order Rhynchonellida, with the new subgenus Platytrochalos (Salopicoelia) within it; the new genus Shelvothyris within the Meristelloidea, and 19 new species across the brachiopod spectrum. The associations within which the brachiopods occurred are identified and discussed, including revision of the concepts of the Lingula (now Mergliella), Eocoelia, Pentamerus, Stricklandia and ‘Clorinda’ communities, which were originally defined from collections in this area. The new shallower-water Palaeoleptostrophia–Mendacella Association (BA 2) is recognised and named: it is prevalent in the Early Aeronian Bog Quartzite Formation of Shropshire. Some species of the rhynchonelloid Platytrochalos are external homoeomorphs of Eocoelia, as well as being within the same family Leptocoeliidae; and the new subgenus Platytrochalos (Salopicoelia), is erected to differentiate between the two: both genera occupy closely comparable Benthic Assemblage 2 positions in the shallower-shelf associations which they often dominate. Les brachiopodes du Llandovery d’Angleterre et du Pays de Galles RÉSUMÉ Diverses roches du début du Silurien (Llando
摘要:威尔士和英格兰威尔士边境地区早志留世(llanddovery)岩石中存在多种贝壳底栖动物已有近200年的历史，本文对这些地区的llanddovery(鲁达尼亚、Aeronian和Telychian)腕足动物进行了修订。它们是环绕威尔士深水盆地的陆架岩石中大多数位置的主要化石。许多Aeronian和Telychian的动物群在一个多世纪以来都没有被修订过，但是早期llanddovery (ruddanian)腕足类动物更为人所知，因此在这里只进行总结。只有Aeronian和Telychian的岩石出现在威尔士边境地区:Ape Dale的Pentamerus床和Hughley页岩组，以及环绕Longmynd-Shelve Inlier的其他地层，都在什罗普郡;在威尔士中部和南部边境的伍斯特郡，赫里福德郡和格洛斯特郡也有。大多数威尔士边地构造都不整合在奥陶纪和更古老的岩石上(中部微克拉通的西部部分)，这些岩石当时都是阿瓦洛尼亚的一部分。后者是波罗的海-阿瓦洛尼亚大陆的一个板块，在奥陶-志留纪交界期之前合并。相比之下，威尔士的Llandovery岩石，包括Llandovery类型地区，以及彭布罗克郡、卡马森郡和波伊斯的其他地区，包括吕达尼安时代、Aeronian时代和Telychian时代的岩石。许多最初在19世纪被描述的腕足动物物种被修改了新的一般归属，有些是第一次被拍摄。已知的种和亚种总数为154种，其中29种属于公开命名法。68个已有的名字被同义词化。新的分类学工作包括将细蛸科(Boucot & Gill, 1956)提升到细蛸目(Rhynchonellida)中新的细蛸总科(Superfamily leptocoelio总科)，其中包括新的Platytrochalos亚属(Salopicoelia);分生蕨总科的新属Shelvothyris和腕足类的19个新种。对腕足类动物的群落进行了鉴定和讨论，包括对Lingula(现在的Mergliella)、Eocoelia、Pentamerus、Stricklandia和“Clorinda”群落的概念进行了修订，这些群落最初是在该地区的收集中定义的。发现并命名了新的浅水古章鱼-门达ella组合(ba2):它普遍存在于什罗普郡早Aeronian沼泽石英岩组。扁球纲扁球纲的一些种是细球纲的外同形，也属于细球纲科;和新亚属Platytrochalos (Salopicoelia)的建立是为了区分两者:这两个属在它们经常占主导地位的浅陆架组合2中占据密切相似的底栖动物组合2位置。Les brachiopodes du兰多维利d 'Angleterre et du支付德加勒的简历潜水员罗氏嘟处子秀嘟Silurien杜(兰多维利)支付德加勒et de la玛吉anglo-galloise contenant des农牧神benthiques是知道他们从普雷斯克200 ans,等这个monographie修改Les brachiopodes du兰多维利(Rhuddanien Aeronien et Telychien) de ces地区。它的组成部分是化石，占主导地位，陆地上的岩石，陆地上的岩石，加洛瓦盆地和深海。La plupart des faunes de l ' aacimronen et du tacimlychien n ' t pass canalys . sanalys + d 'un si<e:1>。继承，les brachiopodes du danci.9cha.com (rhudenen)发送了miieux documents(文件)，发送了新的文件(文件)，发送了danci.9cha.com(文件)和danci.9cha.com(文件)。例如，在阿萨梅尼亚和阿萨梅尼亚的岩层中，所有的岩层都是由阿萨梅尼亚和阿萨梅尼亚组成的;在阿萨梅尼亚和阿萨梅尼亚的岩层中，所有的岩层都是由lonmynd - shelve组成，所有的岩层都是由Shropshire组成的;加上中央舞会和英格兰舞会，还有伍斯特郡，赫里福德郡和格洛斯特郡。La plupart de ces formation de La maranglo -galloise sonsondiscordisantes sur des roches ordoviennes ou plus vieilles (les secteurs westdu micro克拉通des Midlands)， lesquelles font toutes partite d 'Avalonia。它们构成了波罗的海-阿瓦洛尼亚大陆板块，是奥陶-志留纪时期最具代表性的板块。Les罗氏du兰多维利盟支付德加勒,inclut洛杉矶本地人类型du兰多维利,其他de meme在彭布罗克郡,卡马森郡波伊斯,相反地,依照ainsi comprennent细胞du Rhuddanien de l 'Aeronien et du Telychien。Un grand nombre d ' espesires de brachiopodes danci.91.com 'origine au 199.3com ' sanci.com/ ' origin au 199.3com ' sanci.com/ ' sanci.com/ ' sanci.com/ ' sanci.com/ ' sanci.com/ ' sanci.com/ ' sanci.com/ ' sanci.com/ ' sanci.com/ ' sanci.com/ ' sanci.com/ ' sanci.com/。Le nombre total d ' espires et sous- espires regues de 154, not 29, not not 29, not not…Soixante-huit命名，分类法，或者是同义词。 分类工作中再次升高,包括家庭Leptocoeliidae Boucot & Gill, 1956年升格为新superfamille Leptocoelioidea Rhynchonellida顺序等,其中新属Platytrochalos Salopicoelia)是政党内部的新型Shelvothyris Meristelloidea、19和腕足的新物种。对腕足类动物出现的关联进行了识别和讨论，包括对Lingula(这里是Mergliella)、Eocoelia、Pentamerus、Stricklandia和clorinda群落的概念进行了修订，这些群落以前是从该地区的收集中定义的。新的古oleptostrophia - Mendacella组合，浅层环境(ba2)被定义和命名:它在什罗普郡下aeronian沼泽石英岩形成中普遍存在。rhynchonelloid Platytrochalos的一些物种被认为是eocoelia的外部同源性，但属于同一科Leptocoeliidae;为此，我们建立了新Platytrochalos亚属(Salopicoelia)来区分它们:这两个属在它们经常占主导地位
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Pub Date : 2019-03-15DOI: 10.1080/02693445.2018.1509567
V. Perrier, D. Siveter, M. Williams, D. Palmer
Abstract The Silurian myodocope ostracods from Britain comprise six families, 12 genera and 22 species, plus three species in open nomenclature. New material includes representatives of the families Bolbozoidae, Entomozoidae, Cypridinidae and Seminovidae n. fam.; newly described genera and species are Seminova gen. nov., Oculparva moncola gen. et sp. nov., Piscarista sagenata gen. et sp. nov., Nudator inflatus gen. et sp. nov., Nudator angiportatus gen. et sp. nov., Nudator artumatus gen. et sp. nov. and Bolbozoe psittaca sp. nov. Fine biostratigraphic control allows the development of a myodocopid biozonation for the Wenlock and Ludlow series. Seven myodocopid biozones are established, from the early Homerian (Wenlock) to the late Ludfordian (Ludlow) stages. This biozonation allows inter-continental correlation of Silurian successions in Europe, Arctic Russia and Central Asia. Les ostracodes Myodocopes du Silurien britannique RÉSUMÉ La faune d’ostracodes myodocopes du Silurien de Grande-Bretagne, comprend six familles, 12 genres et 22 espèces, plus trois espèces en nomenclature ouverte. Le nouveau matériel comprend des représentants des familles Bolbozoidae, Entomozoidae, Cypridinidae et Seminovidae n. fam.; et sont décrit les nouveaux genres et espèces: Seminova gen. nov., Oculparva moncola gen. et sp. nov., Piscarista sagenata gen. et sp. nov., Nudator inflatus gen. et sp. nov., Nudator angiportatus gen. et sp. nov., Nudator artumatus gen. et sp. nov. et Bolbozoe psittaca sp. nov. Le fin contrôle biostratigraphique permet le développement d'une biozonation des ostracodes myodocopes pour le Wenlock et le Ludlow. Sept biozones à myodocopes peuvent être identifiés, du début de l’Homérien à la fin du Ludfordien. Cette biozonation permet une corrélation inter-continentale entre les successions siluriennes d’Europe, de Russie arctique et d’Asie centrale. Ostracoden der Ordnung Myodocopa aus dem Silur Großbritanniens ZUSAMMENFASSUNG Die silurischen myodocopen Ostrakoden aus Großbritannien umfassen sechs Familien, 12 Gattungen und 22 Arten, sowie drei Arten in offener Nomenklatur. Zu dem neuen Material gehören Vertreter der Familien Bolbozoidae, Entomozoidae, Cypridinidae und Seminovidae n. fam.; die folgende Gettungen und Arten werden beschrieben: Seminova gen. nov., Oculparva moncola gen. et sp. nov., Piscarista sagenata gen. et sp. nov., Nudator inflatus gen. et sp. nov., Nudator angiportatus gen. et sp. nov., Nudator artumatus gen. et sp. nov. und Bolbozoe psittaca sp. nov. Feinste biostratigraphische Auflösung ermöglicht die Entwicklung einer Biozonierung der myodocopen Ostrakoden für das Wenlock und das Ludlow. Sieben Biozonen können vom frühen Homerium (Wenlock) bis zum späten Ludfordium (Ludlow) bestimmt werden. Diese Biozonierung ermöglicht eine interkontinentale Korrelation silurischer Abfolgen innerhalb Europas, im arktischen Russland und in Zentralasien. Великобританские силурийские миoдокопидные oстркоды РЕЗЮМЕ Силурийская фауна миодокопи
摘要:英国志留系肌壳介形类包括6科12属22种，另有3种公开命名。新材料包括了狐虫科、虫虫科、鲤科和拟蝇科的代表;新发现的属和种有Seminova gen. nov.、Oculparva moncola gen. et nov.、Piscarista sagenata gen. et nov.、Nudator inflatus gen. et nov.、Nudator angiportatus gen. et nov.、Nudator artumatus gen. et nov.和Bolbozoe psittaca sp. 11 .精细的生物地层控制使Wenlock和Ludlow系列形成了一个类myodocoid生物分带。从早期荷马纪(Wenlock)到晚期路德福德纪(Ludlow)，共建立了7个肌类生物带。这种生物带化使得欧洲、俄罗斯北极和中亚志留纪演替的洲际对比成为可能。《La faune d 'ostracodes Myodocopes du Silurien de Grande-Bretagne》，包括6个科，12个流派和22个电子产品，加上三种电子产品。蝇虫科、蝇虫科、鲤科、半蝇科等。[endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1] [endnoteref: 1]。]9 biozones myodocopes peuvent être identifisamys, du dsamys，但de l ' homsamrien la fin du Ludfordien。这种生物带化允许在欧洲、俄罗斯北极和亚洲中部建立一个相应的洲际中心。Ostrakoden der Ordnung Myodocopa aus gror ßbritanniens ZUSAMMENFASSUNG Die silurischen myodocopen Ostrakoden aus gror ßbritannien umfassen sechs Familien, 12 Gattungen和22 Arten, sowie drei Arten in offener Nomenklatur。新材料学gehören虫虫科，虫虫科，鲤科，半蝇科;die folgende Gettungen and Arten werden beschrieben: Seminova gen. nov, Oculparva moncola gen. et nov, Piscarista sagenata gen. et nov, Nudator inflatus gen. et nov, Nudator angiportatus gen. et nov, Nudator artumatus gen. et nov, Bolbozoe psittaca sp. 11 . Feinste生物地层学Auflösung ermöglicht die Entwicklung einer Biozonierung der myodocopen Ostrakoden fr das Wenlock and das Ludlow。深圳生物园区können vom fr hen Homerium (Wenlock) bis zum späten Ludfordium (Ludlow) bestestimmt werden。[中国生物多样性杂志][ermöglicht] [e] .大陆间的相关性:欧洲、俄罗斯和中亚。Великобританскиесилурийскиемид阿окопидныoсетркодыРЕЗЮМЕСилурийскаяфаунамиодокопидныхостракодВеликобританийсостоитиз22видов,которыеотносятся12кродам,шестисемействам,книмдобавляются3видаоткрытойноменклатуры。НовыматериалотноситсяксемействамBolbozoidae, Entomozoidae, Cypridinidae,атакжекSeminovidae n . fam公司。11月иSeminova将军,Oculparva moncola将军等sp. 11月,Piscarista sagenata将军等sp. 11月,用Nudator打气将军等sp. 11月,Nudator angiportatus将军等sp. 11月,Nudator artumatus将军等sp. 11月иBolbozoe psittaca sp. 11月Хорошийбиостратиграфическийконтрольспособствовалразработкумиодокоповойбиозонацийдлявенлоксогоилудловскогоотделовсилура。Семьбиозоновустновленодлявременногоинтервалаотхомера(венлок)допозднеголудфордал(удлов)。ЗональнаяшкаламиодокопидпригоднадлякорреляцийсилурийскихотложенийвпределахЕвропы,арктическойчастиРоссиииЦентральнойАзии。
{"title":"British Silurian Myodocope Ostracods","authors":"V. Perrier, D. Siveter, M. Williams, D. Palmer","doi":"10.1080/02693445.2018.1509567","DOIUrl":"https://doi.org/10.1080/02693445.2018.1509567","url":null,"abstract":"Abstract The Silurian myodocope ostracods from Britain comprise six families, 12 genera and 22 species, plus three species in open nomenclature. New material includes representatives of the families Bolbozoidae, Entomozoidae, Cypridinidae and Seminovidae n. fam.; newly described genera and species are Seminova gen. nov., Oculparva moncola gen. et sp. nov., Piscarista sagenata gen. et sp. nov., Nudator inflatus gen. et sp. nov., Nudator angiportatus gen. et sp. nov., Nudator artumatus gen. et sp. nov. and Bolbozoe psittaca sp. nov. Fine biostratigraphic control allows the development of a myodocopid biozonation for the Wenlock and Ludlow series. Seven myodocopid biozones are established, from the early Homerian (Wenlock) to the late Ludfordian (Ludlow) stages. This biozonation allows inter-continental correlation of Silurian successions in Europe, Arctic Russia and Central Asia. Les ostracodes Myodocopes du Silurien britannique RÉSUMÉ La faune d’ostracodes myodocopes du Silurien de Grande-Bretagne, comprend six familles, 12 genres et 22 espèces, plus trois espèces en nomenclature ouverte. Le nouveau matériel comprend des représentants des familles Bolbozoidae, Entomozoidae, Cypridinidae et Seminovidae n. fam.; et sont décrit les nouveaux genres et espèces: Seminova gen. nov., Oculparva moncola gen. et sp. nov., Piscarista sagenata gen. et sp. nov., Nudator inflatus gen. et sp. nov., Nudator angiportatus gen. et sp. nov., Nudator artumatus gen. et sp. nov. et Bolbozoe psittaca sp. nov. Le fin contrôle biostratigraphique permet le développement d'une biozonation des ostracodes myodocopes pour le Wenlock et le Ludlow. Sept biozones à myodocopes peuvent être identifiés, du début de l’Homérien à la fin du Ludfordien. Cette biozonation permet une corrélation inter-continentale entre les successions siluriennes d’Europe, de Russie arctique et d’Asie centrale. Ostracoden der Ordnung Myodocopa aus dem Silur Großbritanniens ZUSAMMENFASSUNG Die silurischen myodocopen Ostrakoden aus Großbritannien umfassen sechs Familien, 12 Gattungen und 22 Arten, sowie drei Arten in offener Nomenklatur. Zu dem neuen Material gehören Vertreter der Familien Bolbozoidae, Entomozoidae, Cypridinidae und Seminovidae n. fam.; die folgende Gettungen und Arten werden beschrieben: Seminova gen. nov., Oculparva moncola gen. et sp. nov., Piscarista sagenata gen. et sp. nov., Nudator inflatus gen. et sp. nov., Nudator angiportatus gen. et sp. nov., Nudator artumatus gen. et sp. nov. und Bolbozoe psittaca sp. nov. Feinste biostratigraphische Auflösung ermöglicht die Entwicklung einer Biozonierung der myodocopen Ostrakoden für das Wenlock und das Ludlow. Sieben Biozonen können vom frühen Homerium (Wenlock) bis zum späten Ludfordium (Ludlow) bestimmt werden. Diese Biozonierung ermöglicht eine interkontinentale Korrelation silurischer Abfolgen innerhalb Europas, im arktischen Russland und in Zentralasien. Великобританские силурийские миoдокопидные oстркоды РЕЗЮМЕ Силурийская фауна миодокопи","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116641165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-01-02DOI: 10.1080/02693445.2018.1468139
B. Moon, Angela M. Kirton
Abstract In Part 2, ichthyosaur taxa of the Late Jurassic are described; three taxa are considered valid: Brachypterygius extremus, Nannopterygius enthekiodon, and Macropterygius sp. indet. (Ichthyosauria: Ophthalmosauridae). These taxa are best represented from the Kimmeridge Clay Formation. Grendelius mordax is rejected as a junior subjective synonym of Brachypterygius extremus based on skull and limb morphology. Material referred to Macropterygius is too incomplete to erect a species, but is considered different enough to retain the genus as separate. Ichthyosaurus aequalis, Ichthyosaurus dilatatus, Ichthyosaurus ovalis, Ichthyosaurus thyreospondylus, and Ichthyosaurus trigonus are considered nomina dubia. Ichthyosaurus advena, Ichthyosaurus chalarodeirus, Ichthyosaurus hygrodeirus, and Ichthyosaurus megalodeirus are considered nomina nuda. Comparisons are drawn with other ichthyosaur taxa, focusing particularly on Neoichthyosauria and Ophthalmosauridae. Evidence is presented for Ophthalmosaurus in the Kimmeridge Clay Formation, but the material is not complete enough to be certain of its specific affinities. Ophthalmosaurus icenicus and Ophthalmosaurus natans are considered separate species, but within the same genus based on several shared autapomorphies. However, re-evaluation of the material of Ophthalmosaurus natans is required. Les ichtyosaures du jurassique moyen et supérieur britannique. 2ème Partie. Brachypterygius, Nannopterygius, Macropterygius et Taxa invalida RÉSUMÉ Dans la 2ème partie, les taxons d’ichtyosaures du jurassique supérieur sont décrits: trois taxons sont considérés valides: Brachypterygius extremus, Nannopterygius enthekiodon, et Macropterygiu sp. indet. (Ichthyosauria: Ophthalmosauridae). Ces taxons sont mieux représentés dans la formation du Kimmeridge Clay. Grendelius mordax est abandonné comme synonyme subjectif plus recent de Brachypterygius extremus sur la base de la morphologie du crâne et des membres. Le matériel identifié comme Macropterygius est trop incomplet pour l’érection d’une espèce nouvelle, mais est considéré suffisamment différent pour séparer le genre. Ichthyosaurus aequalis, Ichthyosaurus dilatatus, Ichthyosaurus ovalis, Ichthyosaurus thyreospondylus, et Ichthyosaurus trigonus sont traités comme nomina dubia. Ichthyosaurus advena, Ichthyosaurus chalarodeirus, Ichthyosaurus hygrodeirus, et Ichthyosaurus megalodeirus sont traités comme nomina nuda. Des comparaisons sont effectuées avec d’autres taxons d’ichtyosaures, et en particulier Neoichthyosauria et Ophthalmosauridae. Ophthalmosaurus est présent dans la formation de Kimmeridge Clay, mais le matériel n’est pas suffisamment complet pour une affinité spécifique précise. Ophthalmosaurus icenicus et Ophthalmosaurus natans sont considérés comme étant des espèces séparées, mais appartenant au même genre sur la base de plusieurs autapomorphies communes. Cependant, une réévaluation du matériel d’Ophthalmosaurus natans est nécessaire. [Translation by Yve
第二部分描述了晚侏罗世的鱼龙类群;三个分类群被认为是有效的:极短翼龙、南翼龙和巨翼龙。(鱼龙类:Ophthalmosauridae)。这些分类群在Kimmeridge粘土组中最具代表性。基于颅骨和肢体的形态特征，我们不认为Grendelius mordax是Brachypterygius extremus的初级主观同义词。Macropterygius的资料太不完整，无法建立一个物种，但被认为是不同的，足以保留属作为独立的。平鳞鱼龙、扩张鱼龙、卵形鱼龙、甲状棘鱼龙和三角鱼龙被认为是可疑的。亚vena鱼龙、chalodeirus鱼龙、hygrodeirus鱼龙和megalodeirus鱼龙被认为是名义鱼龙。并与其他鱼龙类群进行了比较，重点是新鱼龙和眼龙科。在Kimmeridge粘土组中有关于眼龙的证据，但材料不够完整，无法确定其特定的亲和力。icenicus眼龙和natans眼龙被认为是不同的物种，但基于几个共同的自异形在同一属。然而，需要对纳坦眼龙的材料进行重新评估。《侏罗纪鱼类》和《超级不列颠鲨》。个重要一部分。Brachypterygius, nannoterygius, macropteryus et Taxa invalida RÉSUMÉ Dans la 2<s:1> party, les taxons d 'ichtyosaures du jurassique supersamrieur sondsamricrits;三个taxons sonth认为samrists有效:brachypteryus extremus, nannoteryus enthekidon, et Macropterygiu sp. indet。(鱼龙类:Ophthalmosauridae)。这两个分类单元在Kimmeridge Clay的形成过程中产生了miieux repracresamsentsams。最近的de Brachypterygius extremus sur la base de la morphologie du cr8ne et des成员。主要考虑的是，不同类型的人对不同类型的人的待遇不同。平鳞鱼龙、扩张鱼龙、卵形鱼龙、甲状腺棘鱼龙、三角鱼龙等。亚vena鱼龙，chalodeirus鱼龙，hygrodeirus鱼龙，以及megalodeirus鱼龙。这种比较对不同种类的鱼龙，尤其是新鱼龙和眼龙的比较没有效果。眼龙(Ophthalmosaurus)是指眼龙(Ophthalmosaurus)，眼龙(Ophthalmosaurus)是指眼龙(Ophthalmosaurus)，眼龙(Ophthalmosaurus)。icenicus Ophthalmosaurus和natans Ophthalmosaurus并没有考虑到<s:2> genre sur la base de plusiieurs autapomorphies communes，主要是通过même genre sur la base de plusiieurs autapomorphies来实现的。因此，一个人眼龙的<s:1>眼龙的<s:1>眼龙的<s:1>眼龙的。[伊夫·坎德拉翻译][中文]英国米特尔鱼龙和奥伯朱拉鱼龙。Zweiter菩提树。短翼龙、小翼龙、大翼龙与无效分类群ZUSAMMENFASSUNGdrei werden分类群zulässig betrachtet:极短翼龙，南翼龙，和巨翼龙。(鱼龙类:Ophthalmosauridae)。Diese Taxa werden am vollständigsten in der Kimmeridge formation repräsentiert。基础形态学研究Schädels和Extremitäten野生短翼龙与<s:1>短翼龙的主词同义性研究极端短翼龙与<s:1>短翼龙。基金，die Macropterygius zugerechnet werden, sind zu unvollständig, um eine eigene Spezies zu beschreiben。这个词的意思是:“我们的意思是说，我们的意思是说，我们的意思是说，我们的意思是说，我们的意思是说，我们的意思是说，我们的意思是说，我们的意思是说，我们的意思是说。”平鳞鱼龙、扩张鱼龙、卵形鱼龙、甲状棘鱼龙、三角鱼龙、绿鳍鱼龙、水鳍鱼龙、巨鳍鱼龙。Vergleiche，以及新鱼龙目和眼龙科的分类者，都被称为anderen鱼龙目分类群gezogen。Hinweise fr Ophthalmosaurus in der Kimmeridge formation werden präsentiert, doch die Funde sind night vollständig genug, um eine spezifische Verwandtschaft sicherstellen zu können。icenicus Ophthalmosaurus和natans Ophthalmosaurus werden也unterschiedliche Spezies aufgefastst, die jedoch aufgrund gemeinsamer Autapomorphien zur selttung gezählt werden können。眼龙与眼龙的关系。[David Schlaphorst译]]Ихтиозаврыбританскогосреднегоиверхнегоюрскогопериода。Частьвторая:Brachypterygius, Nannopterygius, Macropterygius,и类群invalidaРЕЗЮМЕВовторойчастиописываютсятаксоныихтиозавровпозднейюры。 三个分类器被认为是有效的:Brachypterygius极限，Nannopterygius enthekiodon和Macropterygius s . indet。(Ichthyosauria: Ophthalmosauridae)。所有这些分类广告都以kimmeredge粘土的形式呈现出来。mordax被拒绝为Brachypterygius极端的初级主观同义词，基于头骨和四肢的形态学。与Macropterygius相关的材料太不完整，无法形成一个物种，但被认为是足够的不同来保持一个属。ichthyourus aequalis, ichthyourus dilatatus, ichthyourus ovalis，和ichthyourus trigonus被认为是nomina dubia。advena、ichthyourus chalarodeirus、ichthyourus hygrodeirus和ichthyourus megalodeirus被认为是nuda。它们与其他霸王龙的类比，特别是新黑龙和欧法特尔莫萨里亚。有证据表明奥法塔莫萨是粘土的形状，但材料
{"title":"Ichthyosaurs of the British Middle and Upper Jurassic. Part 2. Brachypterygius, Nannopterygius, Macropterygius and Taxa invalida","authors":"B. Moon, Angela M. Kirton","doi":"10.1080/02693445.2018.1468139","DOIUrl":"https://doi.org/10.1080/02693445.2018.1468139","url":null,"abstract":"Abstract In Part 2, ichthyosaur taxa of the Late Jurassic are described; three taxa are considered valid: Brachypterygius extremus, Nannopterygius enthekiodon, and Macropterygius sp. indet. (Ichthyosauria: Ophthalmosauridae). These taxa are best represented from the Kimmeridge Clay Formation. Grendelius mordax is rejected as a junior subjective synonym of Brachypterygius extremus based on skull and limb morphology. Material referred to Macropterygius is too incomplete to erect a species, but is considered different enough to retain the genus as separate. Ichthyosaurus aequalis, Ichthyosaurus dilatatus, Ichthyosaurus ovalis, Ichthyosaurus thyreospondylus, and Ichthyosaurus trigonus are considered nomina dubia. Ichthyosaurus advena, Ichthyosaurus chalarodeirus, Ichthyosaurus hygrodeirus, and Ichthyosaurus megalodeirus are considered nomina nuda. Comparisons are drawn with other ichthyosaur taxa, focusing particularly on Neoichthyosauria and Ophthalmosauridae. Evidence is presented for Ophthalmosaurus in the Kimmeridge Clay Formation, but the material is not complete enough to be certain of its specific affinities. Ophthalmosaurus icenicus and Ophthalmosaurus natans are considered separate species, but within the same genus based on several shared autapomorphies. However, re-evaluation of the material of Ophthalmosaurus natans is required. Les ichtyosaures du jurassique moyen et supérieur britannique. 2ème Partie. Brachypterygius, Nannopterygius, Macropterygius et Taxa invalida RÉSUMÉ Dans la 2ème partie, les taxons d’ichtyosaures du jurassique supérieur sont décrits: trois taxons sont considérés valides: Brachypterygius extremus, Nannopterygius enthekiodon, et Macropterygiu sp. indet. (Ichthyosauria: Ophthalmosauridae). Ces taxons sont mieux représentés dans la formation du Kimmeridge Clay. Grendelius mordax est abandonné comme synonyme subjectif plus recent de Brachypterygius extremus sur la base de la morphologie du crâne et des membres. Le matériel identifié comme Macropterygius est trop incomplet pour l’érection d’une espèce nouvelle, mais est considéré suffisamment différent pour séparer le genre. Ichthyosaurus aequalis, Ichthyosaurus dilatatus, Ichthyosaurus ovalis, Ichthyosaurus thyreospondylus, et Ichthyosaurus trigonus sont traités comme nomina dubia. Ichthyosaurus advena, Ichthyosaurus chalarodeirus, Ichthyosaurus hygrodeirus, et Ichthyosaurus megalodeirus sont traités comme nomina nuda. Des comparaisons sont effectuées avec d’autres taxons d’ichtyosaures, et en particulier Neoichthyosauria et Ophthalmosauridae. Ophthalmosaurus est présent dans la formation de Kimmeridge Clay, mais le matériel n’est pas suffisamment complet pour une affinité spécifique précise. Ophthalmosaurus icenicus et Ophthalmosaurus natans sont considérés comme étant des espèces séparées, mais appartenant au même genre sur la base de plusieurs autapomorphies communes. Cependant, une réévaluation du matériel d’Ophthalmosaurus natans est nécessaire. [Translation by Yve","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115119357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1080/02693445.2019.1620993
P. Hodges
ABSTRACT Part 3 continues the descriptions of early Jurassic bivalves from the Hettangian and Lower Sinemurian stages of south-west Britain. Nine species are assigned to the subclass Anomalodesmata, including the genera Pholadomya (Pholadomya), Homomya, Goniomya (Goniomya), Pleuromya, Platymyoidea (including P. morrisi sp. nov.), Gresslya, Pteromya and Mactromya. The genus Mactromya is reassigned from the Lucinoidea to the Edmondioidea based on hinge and musculature features.
{"title":"The Early Jurassic Bivalvia from the Hettangian and Lower Sinemurian of south-west Britain","authors":"P. Hodges","doi":"10.1080/02693445.2019.1620993","DOIUrl":"https://doi.org/10.1080/02693445.2019.1620993","url":null,"abstract":"ABSTRACT Part 3 continues the descriptions of early Jurassic bivalves from the Hettangian and Lower Sinemurian stages of south-west Britain. Nine species are assigned to the subclass Anomalodesmata, including the genera Pholadomya (Pholadomya), Homomya, Goniomya (Goniomya), Pleuromya, Platymyoidea (including P. morrisi sp. nov.), Gresslya, Pteromya and Mactromya. The genus Mactromya is reassigned from the Lucinoidea to the Edmondioidea based on hinge and musculature features.","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125055898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1080/02693445.2017.11963959
C. W. Wright, W. Kennedy, J. Hancock, A. Gale
ABSTRACT Part 7 presents the stratigraphical results of the revision of the Ammonoidea of the Lower Chalk. Localities key to the establishment of the revised zonal and subzonal scheme are described and discussed. The limits of the Cenomanian Stage are reviewed, as is the global correlation of Cenomanian ammonite faunas.
{"title":"The Ammonoidea of the Lower Chalk Part 7","authors":"C. W. Wright, W. Kennedy, J. Hancock, A. Gale","doi":"10.1080/02693445.2017.11963959","DOIUrl":"https://doi.org/10.1080/02693445.2017.11963959","url":null,"abstract":"ABSTRACT Part 7 presents the stratigraphical results of the revision of the Ammonoidea of the Lower Chalk. Localities key to the establishment of the revised zonal and subzonal scheme are described and discussed. The limits of the Cenomanian Stage are reviewed, as is the global correlation of Cenomanian ammonite faunas.","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126497436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.1080/02693445.2017.11963960
P. Hodges
ABSTRACT Part 2 continues the descriptions of early Jurassic bivalves from the Hettangian and Lower Sinemurian stages of south-west Britain. Seven species are assigned to the subclass Heteroconchia, including the genera Neocrassina (Neocrassina), Cardinia, Tutcheria, Tancredia (Tancredia) and Protocardia (Protocardia). Two species are assigned to the subclass Lucinata, including the genera Mesomiltha and Luciniola.
{"title":"The Early Jurassic Bivalvia from the Hettangian and Lower Sinemurian of South-West Britain Part 2","authors":"P. Hodges","doi":"10.1080/02693445.2017.11963960","DOIUrl":"https://doi.org/10.1080/02693445.2017.11963960","url":null,"abstract":"ABSTRACT Part 2 continues the descriptions of early Jurassic bivalves from the Hettangian and Lower Sinemurian stages of south-west Britain. Seven species are assigned to the subclass Heteroconchia, including the genera Neocrassina (Neocrassina), Cardinia, Tutcheria, Tancredia (Tancredia) and Protocardia (Protocardia). Two species are assigned to the subclass Lucinata, including the genera Mesomiltha and Luciniola.","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116111460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-01DOI: 10.1080/02693445.2016.11963957
A. Smith
ABSTRACT Part 2 completes the description of the regular echinoids of the British Jurassic. Members of the orders Phymosomatoida, Salenioida, Stomopneustoida and Arbacioida are covered, with 25 genera and 44 species described in detail and one further species left in open nomenclature. Three new genera are erected (Cunidentechinus, Wrightechinus and Pseudomilnia) and two new species (Stomechinus phillipsii and Trochotiara aalensis). The stratigraphical distribution of the entire fauna of Jurassic regular echinoids is summarized.
{"title":"British Jurassic Regular Echinoids Part 2, Carinacea","authors":"A. Smith","doi":"10.1080/02693445.2016.11963957","DOIUrl":"https://doi.org/10.1080/02693445.2016.11963957","url":null,"abstract":"ABSTRACT Part 2 completes the description of the regular echinoids of the British Jurassic. Members of the orders Phymosomatoida, Salenioida, Stomopneustoida and Arbacioida are covered, with 25 genera and 44 species described in detail and one further species left in open nomenclature. Three new genera are erected (Cunidentechinus, Wrightechinus and Pseudomilnia) and two new species (Stomechinus phillipsii and Trochotiara aalensis). The stratigraphical distribution of the entire fauna of Jurassic regular echinoids is summarized.","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133027717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-01DOI: 10.1080/02693445.2016.11963958
B. Moon, Angela M. Kirton
ABSTRACT The ichthyosaur material of the British Middle and Upper Jurassic referable to Ophthalmosaurus icenicus (Ichthyosauria: Ophthalmosauridae) is revisited and re-described; this is the most completely known post-Liassic British ichthyosaur. Much of this material derives from the Callovian Oxford Clay Formation, particularly from the Peterborough Area of Cambridgeshire, UK, deposited in the Leeds Collections. Pre-Callovian ichthyosaur remains are infrequent, incomplete, and non-diagnostic. Material referred to Ophthalmosaurus icenicus shows high variability in the extent of ossification. Based on examination of the type and referred material, Ophthalmosaurus monocharactus and Ophthalmosaurus pleydelli are rejected as junior subjective synonyms of Ophthalmosaurus icenicus due to a lack of diagnostic characters and pathology of specimens. Ichthyosaurus megalodeirus is rejected as a nomen nudum and the type material is referred to Ophthalmosaurus icenicus. Ophthalmosaurus icenicus is considered a separate species from Ophthalmosaurus natans based on several autapomorphies, but requires re-evaluation of the material.
{"title":"Ichthyosaurs of the British Middle and Upper Jurassic Part 1, Ophthalmosaurus","authors":"B. Moon, Angela M. Kirton","doi":"10.1080/02693445.2016.11963958","DOIUrl":"https://doi.org/10.1080/02693445.2016.11963958","url":null,"abstract":"ABSTRACT The ichthyosaur material of the British Middle and Upper Jurassic referable to Ophthalmosaurus icenicus (Ichthyosauria: Ophthalmosauridae) is revisited and re-described; this is the most completely known post-Liassic British ichthyosaur. Much of this material derives from the Callovian Oxford Clay Formation, particularly from the Peterborough Area of Cambridgeshire, UK, deposited in the Leeds Collections. Pre-Callovian ichthyosaur remains are infrequent, incomplete, and non-diagnostic. Material referred to Ophthalmosaurus icenicus shows high variability in the extent of ossification. Based on examination of the type and referred material, Ophthalmosaurus monocharactus and Ophthalmosaurus pleydelli are rejected as junior subjective synonyms of Ophthalmosaurus icenicus due to a lack of diagnostic characters and pathology of specimens. Ichthyosaurus megalodeirus is rejected as a nomen nudum and the type material is referred to Ophthalmosaurus icenicus. Ophthalmosaurus icenicus is considered a separate species from Ophthalmosaurus natans based on several autapomorphies, but requires re-evaluation of the material.","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129189598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1080/02693445.2015.11963955
A. Smith
ABSTRACT Part one commences the description of the regular echinoids of the British Jurassic. The history of their scientific description from pre-Linnean times to the present day is reviewed and a stratigraphical framework established for the monograph. Members of the orders Cidaroida, Echinothurioida, Aspidodiadematoida and Pedinoida are covered, with 21 genera and 40 species described in detail and a further 14 species left in open nomenclature. The genus Pseudopedina is transferred to the Family Pelanodiadematidae and Order Echinothurioida. One new family, Paracidaridae, is erected to accommodate the genera Paracidaris and Caenocidaris.
{"title":"British Jurassic Regular Echinoids Part 1, Introduction, Cidaroida, Echinothurioida, Aspidodiadematoida and Pedinoida","authors":"A. Smith","doi":"10.1080/02693445.2015.11963955","DOIUrl":"https://doi.org/10.1080/02693445.2015.11963955","url":null,"abstract":"ABSTRACT Part one commences the description of the regular echinoids of the British Jurassic. The history of their scientific description from pre-Linnean times to the present day is reviewed and a stratigraphical framework established for the monograph. Members of the orders Cidaroida, Echinothurioida, Aspidodiadematoida and Pedinoida are covered, with 21 genera and 40 species described in detail and a further 14 species left in open nomenclature. The genus Pseudopedina is transferred to the Family Pelanodiadematidae and Order Echinothurioida. One new family, Paracidaridae, is erected to accommodate the genera Paracidaris and Caenocidaris.","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130592582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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