Monographs of the Palaeontographical Society最新文献

{"title":"Ostracoda from the Turonian of South-east England. Part 1","authors":"I. Slipper","doi":"10.1080/02693445.2019.1687983","DOIUrl":"https://doi.org/10.1080/02693445.2019.1687983","url":null,"abstract":"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.","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124099030","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}

{"title":"Llandovery Brachiopods From England and Wales","authors":"L. Cocks","doi":"10.1080/02693445.2018.1537165","DOIUrl":"https://doi.org/10.1080/02693445.2018.1537165","url":null,"abstract":"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","PeriodicalId":134015,"journal":{"name":"Monographs of the Palaeontographical Society","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124807665","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}

{"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}

{"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}

{"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}

{"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}

{"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}

{"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}

{"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}

{"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}