Proceedings of the Estonian Academy of Sciences, Geology |
Common terms and phrases
aastal acanthodians Acernaspis adaptive radiation Aeronian anaspids Anto Raukas appearance assemblage Bassett Biozone Birkeniida sp Boucot brachiopods Builth carbon isotope carbonate rocks characterized chitinozoan species Community Group conodont correlation curves cycles deposition disappearance dominated Droste early Ludlovian East Baltic East Baltic Silurian Eesti Teaduste Akadeemia Estonian Estonian Acad eustasy extinction event facies Formation formosus genera Geol Geological graptolite heterostracan Indiana innovation Instituudi interval Kaljo Kuressaare late Wenlock Latvia Leevi Kalevi Kauranne Limestone Llandovery Loganellia low diversity lower ludensis Ludfordian Ludlovian Ludlow major meie Michigan Basin midwestern nassa Biozone Nestor nilssoni ning Nostolepis occurred Ohesaare Olikooli Ordovician osteostracans Paadla Stage Pander pentamerinid Pridoli Pridolian reefs Region riccartonensis scanicus SCTOHHH sea-level changes sections sedgwickii sediments Seltsi sequence Shaver siliciclastic siluri Silurian Soome stratigraphic Tahula Tallinn Tartu taxa tectonism thelodonts Thelodus thickness transgression trilobite trilobite fauna Uduvere Beds vertebrates Welsh Basin Wenlock—Ludlow boundary Wenlockian West Midlands Zone level