Upper Cenomanian–Lower Turonian ammonoids from the Saxonian Cretaceous (lower Elbtal Group, Saxony, Germany)

Bulletin of geosciences

Wilmsen M¹  Nagm E¹ 

关键词: Upper Cretaceous;    Saxo-Bohemian Cretaceous Basin;    ammonites;    taxonomic revision;    biostratigraphy;   

DOI  :  

来源: Czech Geological Survey

【 摘 要 】

TheUpperCenomaniantoLowerTuronianammonoidfaunaoftheSaxonianCretaceous(ElbtalGroup,Saxony,Germany)hasbeenrevisedbasedonthestudyof270specimenshostedintheMuseumfürMineralogieundGeologie(MMG)oftheSenckenbergNaturhistorischeSammlungenDresden.Intotal,12specieshavebeenidentifiedand,basedonthisrevision,anumberofammonoidsarenowreportedand/orillustratedforthefirsttimefromtheElbtalGroupofSaxony:Euomphalocerasseptemseriatum,Neocardiocerasjuddiibarroisi,Watinocerascoloradoense,Spathites(Jeanrogericeras)reveliereanus,SciponocerasgracileandScaphitesequalis.ThestudydemonstratedthepresenceofallUpperCenomanianandLowerTuronianstandardammonitebiozonesinthelithostratigraphicsuccessionofthelowerElbtalGroup:thelowerUpperCenomanianCalycocerasnaviculareZone(representedbytheOberhäslichFormation),themid-andupperUpperCenomanianMetoicocerasgeslinianumandNeocardiocerasjuddiizones(representedbytheDölzschenFormation),andtheLowerTuronianWatinocerascoloradoenseandMammitesnodosoideszones(representedbytheBrießnitzFormation).TheammonoidfaunafromtheSaxonianCretaceousisdominatedbystronglyornamentedandwidelydistributedAcanthoceratidae.

【 授权许可】

Unknown