Taxonomy and palaeoecology of a decapod crustacean assemblage from the Oxfordian of Stránská skála (Southern Moravia, Czech Republic)

Bulletin of geosciences

Hyžný M¹  Starzyk N¹  Kočová Veselská M¹  Robins CM¹ 

关键词: Oxfordian;    Czech Republic;    Decapoda;    differential diversity;    bopyrid infestation;   

DOI  :  

来源: Czech Geological Survey

【 摘 要 】

PrimitivebrachyuransandotherdecapodshavebeenextensivelyreportedfromdepositsofOxfordianage,oftentermedmicrobial-spongeandcoralmegafaciesdistributedacrosstheentiretyofEurope.DuringtheOxfordian,coralreefswerefarlesscommonthanmicrobial-spongebuild-ups.TheoccurrencesofdecapodsassociatedwithsuchcoralfaciesincludethoseinFrance,RomaniaandtheCzechRepublic.RegardingtheCzechRepublic,theassemblagefromtheStránskáskálaHillhasbeenevaluated;itiscomposedofatleastsixspeciesincludingGastrosacuswetzleri,Eomunidopsiscf.E.neojurensis,Longodromitesangustus,Goniodromitesnarinosus,GoniodromitesserratusandEodromitesgrandis.Besidesthedorsalcarapacematerial,isolatedchelaearedescribedaswell.Astheyarenotpreservedindirectassociationwithtaxonomicallysignificantcarapaces,theyaretreatedinopennomenclature.DifferentialdiversityofdecapodsatStránskáskálaisrelativelylowcomparedtoslightlyyoungerTithoniancoral-associatedassemblagesfromRomania.Outof36studiedspecimens,threebearaswellingonthebranchialregioninterpretedtobearesultofanisopodinfestation.Therelativelyhighpercentageofinfestation(8.33%)canbeexplainedbycollectionbiassincecarapaceswithbopyriformswellingscanbeconsideredmoreattractivetocollectors.

【 授权许可】

Unknown