Availableonlineat

ScienceDirect

Palaeoworld24(2015)231–242

NewdataonSilurianvertebratesofsouthernSiberia

N.V.Sennikova,b,?,O.A.Rodinaa,N.G.Izokha,O.T.Obuta,b

aInstituteofPetroleumGeologyandGeophysics,SiberianBranch,RussianAcademyofSciences,Russia

bNovosibirskStateUniversity,Novosibirsk,Russia

Received17September2014;receivedinrevisedform2February2015;accepted2February2015

Availableonline12February2015

Abstract

ThispaperpresentsreviseddataonSilurianconodonts,graptolitesandvertebratesofsouthernSiberia.Wede?nepatternsoffaciesassocia-

tionsofagnathansand?shesfromSilurianbasinsoftheTuvaregioninsouthernSiberiabasedonoriginalandpublisheddata.Theagnathans

displayamosaicdistribution:TuvaspismargaritaeObruchevplusTannuaspislevenkoiObruchev,HelenolepisnavicularisKaratajute-Talimaa,and

HelenolepisobrucheviKaratajute-TalimaaplusLoganelliascotica(Traquair)occurinlittoral,sublittoralanddistalupliftedsublittoralenviron-

ments,respectively.ElegestolepisgrossiKaratajute-Talimaa?shtaxaoccurinbothlittoralandsublittoralenvironments,whereasthoseofTuvalepis

schultzeiZigaiteandKaratajute-Talimaaaremoretypicalofdistalupliftedenvironment.Ourobtaineddatacontributetotheunderstandingofthe

Silurianbiostratigraphyandlitho-andbiofaciesofthewholeregion.

?2015ElsevierB.V.andNanjingInstituteofGeologyandPalaeontology,CAS.Allrightsreserved.

Keywords:Tuva;Biostratigraphy;Agnathans;Fishes;Taxa;En