Bulletin of geosciences | |
The ginkgophytes from the German Kupferschiefer (Permian), with considerations on the taxonomic history and use of Baiera and Sphenobaiera | |
Kustatscher E1  Krings M1  Bauer K1  | |
关键词: Esterella; Ginkgophyta; late Permian; radiation; foliage fossil; macromorphometry; Central European Basin; Germany; | |
DOI : | |
来源: Czech Geological Survey | |
【 摘 要 】
Ginkgophytefoliagefossils(impressionsandcompressionslackingcuticle)fromseveralofthehistoricalKupferschieferlocalitiesinGermanyhavebeenre-studiedusingmacromorphometry.BaieradigitataisbyfarthemostcommonginkgophyteintheKupferschiefer,whileothertaxaarerelativelyrare.Anewtaxon,forwhichthenameBaieramansfeldensisisproposed,differsfromB.digitatainhavingamuchthinner,curvedpetioleandacurvedlamina,aswellasanarrowbasalangle.Esterellagracilis,ataxonpreviouslyknownexclusivelyfromFrance,isreportedforthefirsttimefromGermany.ThefoliagegeneraBaieraandSphenobaierahaveacomplicatedtaxonomichistory,andtheproblematiccontiguitythatexistsbetweenthetwotaxahasleadtoconsiderableconfusion.Itappearsthattheradiationoftheginkgophytesstartedwellbeforetheend-Permianmass-extinction,andthatPermianginkgophytesweremorediversethanpreviouslybelieved.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912090783163ZK.pdf | 6391KB | download |