Linguloidean brachiopods from the Lower Ordovician (Tremadocian) of northwestern Argentina

Bulletin of geosciences

Benedetto JL¹  Muñoz DF¹ 

关键词: linguliform brachiopods;    Ordovician;    Argentina;    biogeography;   

DOI  :  

来源: Czech Geological Survey

【 摘 要 】

ThenewobolidTorobolussubplanusgen.etsp.nov.fromthelowerTremadocianDevendeusFormation,andthethenewspeciesLibecoviellatilcarensisandLeptembolonargentinumfromtheupperTremadocianSantaRositaFormationaredescribedandillustrated.LibecoviellaistypicaloftheupperTremadocianTřeniceFormationandFloianKlabavaFormationofthePragueBasinandhasbeenreportedrecentlyfromAustralia.LeptembolonhasbeenrecordedinthesameBohemianformations,buttogetherwithothertaxaitformstheThysanotos-LeptembolonAssociationpresentinnorthernEstoniaandaseriesofhigh-latitudeterranes.TherecordofLeptembolonandLibecoviellainthehigh-totemperate-latitudeCentralAndeanregionpointstoaperi-Gondwanandistributionofthesegenera.ThepresenceofBohemian-likeobolidsinnorthwesternArgentinasuggestsamigratoryroutelinkingtheCentralAndeanBasinwithnorthGondwanaandPerunicaalongtheclasticplatformsfringingtheNorthAfricanandBrazilianshields.

【 授权许可】

Unknown