Graptolite graveyard: Re-Os dating of macroplankton at the Lower-Middle Ordovician boundary (Floian--Dapingian stage boundary), Tøyen Shale, southern Sweden

Vineet Goswami, Fort Collins, CO, United States, Holly J Stein, Colorado State University, AIRIE Program, Fort Collins, CO, United States, Judith L Hannah, Colorado State University, Fort Collins, CO, United States, Per Ahlberg, Department of Geology, Lund University, Lund, Sweden and Jörg Maletz, Institut für Geologische Wissenschaften, Freie Universität, Berlin, Germany