{"title":"From the Palaeontological Collection of the Universalmuseum Joanneum - The Cenozoic Decapod Crustaceans (Crustacea: Malacostraca: Decapoda).","authors":"Matúš Hyžný, Martin Gross","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Cenozoic decapod crustaceans housed in the collections of the Universalmuseum Joanneum (Graz, Austria) are reviewed. Previous descriptions, geographic and stratigraphic provenance and collection history are discussed. Altogether 72 specimens are figured, including five holotypes. Taxonomic affinity of previously unpublished material is addressed. <i>Gebiacantha</i> sp. from the middle Miocene of Wetzelsdorf is the first fossil record of the genus from the Paratethys.</p>","PeriodicalId":91724,"journal":{"name":"Joannea--Geologie und Palaontologie","volume":"12 ","pages":"73-127"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5321510/pdf/emss-71495.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34766361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dan L Danielopol, Martin Gross, Mathias Harzhauser, Klaus Minati, Werner E Piller
{"title":"How and why to achieve greater objectivity in taxonomy, exemplified by a fossil ostracod (<i>Amplocypris abscissa</i>) from the Miocene Lake Pannon.","authors":"Dan L Danielopol, Martin Gross, Mathias Harzhauser, Klaus Minati, Werner E Piller","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A project on fossil ostracods from Hennersdorf (Vienna Basin, Middle Pannonian \"E\" stage) documents the non-marine ostracod <i>Amplocypris abscissa</i> (Reuss 1850) as a polymorphic taxon. The high morphological variability of the valves belonging to this species and its geographic distribution in the Lake Pannon point to a widely spread fossil taxon. This traditional view emerges from the fact that A. abscissa displays few homologous \"landmarks\" (morphological reference points) which makes it difficult to compare morphotypes within and among populations. The present contribution offers arguments for the need of objective criteria when describing ostracods with few visible morphological traits. It is demonstrated that using a composite algorithmic approach which combines information implemented in the computer programme MORPHOMATICA for different variables, measured on interval and ratio scales, is able to define morphological traits objectively. The data analysed with multivariate statistics are further used for diagnostic profiles of clearly delineated morphotypes. The potential taxonomic value of three morphotypes here identified for <i>Amplocypris abscissa</i> is discussed. It is argued that this taxon represents a phylogenetic lineage within which a cluster of species with discrete morphological traits exists. Finally, it is proposed to apply similar algorithms for the necessary revision of the whole group of <i>Amplocypris</i> species from Lake Pannon.</p>","PeriodicalId":91724,"journal":{"name":"Joannea--Geologie und Palaontologie","volume":"11 ","pages":"273-326"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5229259/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144181448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ostracods and stable isotopes: proxies for palaeoenvironmental reconstructions.","authors":"Marco Caporaletti","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Carbon and oxygen stable isotope distribution is widely used for palaeoenvironmental studies. In the last 30 years these geochemical techniques were also applied on ostracod shells in particular for reconstruction of non-marine settings. The aim of this paper is to provide a general overview on methods applied and results obtained by stable isotope studies. Major attention will be focused on problems and advantages related to stable isotope analyses on ostracod shells.</p>","PeriodicalId":91724,"journal":{"name":"Joannea--Geologie und Palaontologie","volume":"11 ","pages":"345-359"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5257268/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144183720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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