| High-resolution stable isotope stratigraphy of Upper Ordovician sequences: constraints on the timing of bioevents and environmental changes associated with mass extinction and … PJ Brenchley, GA Carden, L Hints, D Kaljo, JD Marshall, T Martma, ... Geological Society of America Bulletin 115 (1), 89-104, 2003 | 484 | 2003 |
| Middle and Upper Ordovician carbon isotope chemostratigraphy in Baltoscandia: a correlation standard and clues to environmental history L Ainsaar, D Kaljo, T Martma, T Meidla, P Männik, J Nõlvak, O Tinn Palaeogeography, Palaeoclimatology, Palaeoecology 294 (3-4), 189-201, 2010 | 275 | 2010 |
| Ordovician chitinozoan zones from Baltoscandia J Nõlvak, Y Grahn Review of palaeobotany and palynology 79 (3-4), 245-269, 1993 | 224 | 1993 |
| Ordovician timescale in Estonia: recent developments J Nõlvak, O Hints, P Männik Proceedings of the Estonian Academy of Sciences, Geology 55 (2), 95-108, 2006 | 157 | 2006 |
| Late Ordovician carbon isotope trend in Estonia, its significance in stratigraphy and environmental analysis D Kaljo, L Hints, T Martma, J Nõlvak, A Oraspõld Palaeogeography, Palaeoclimatology, Palaeoecology 210 (2-4), 165-185, 2004 | 149 | 2004 |
| δ18O and REE contents of phosphatic brachiopods: a comparison between modern and lower Paleozoic populations C Lecuyer, P Grandjean, JA Barrat, J Nolvak, C Emig, F Paris, M Robardet Geochimica et Cosmochimica Acta 62 (14), 2429-2436, 1998 | 149 | 1998 |
| Chitinozoans F Paris, A Achab, E Asselin, C Xiao-hong, Y Grahn, J Nõlvak, O Obut, ... The great Ordovician biodiversification event, 294-311, 2004 | 142 | 2004 |
| The succession of Hirnantian events based on data from Baltica: brachiopods, chitinozoans, conodonts, and carbon isotopes. D Kaljo, L Hints, P Männik, J Nõlvak Estonian Journal of Earth Sciences 57 (4), 2008 | 139 | 2008 |
| Polar front shift and atmospheric CO2 during the glacial maximum of the Early Paleozoic Icehouse TRA Vandenbroucke, HA Armstrong, M Williams, F Paris, JA Zalasiewicz, ... Proceedings of the National Academy of Sciences 107 (34), 14983-14986, 2010 | 128 | 2010 |
| Upper Ordovician sequences of western Estonia MT Harris, PM Sheehan, L Ainsaar, L Hints, P Männik, J Nõlvak, M Rubel Palaeogeography, Palaeoclimatology, Palaeoecology 210 (2-4), 135-148, 2004 | 119 | 2004 |
| Biological interpretationand paleobiodiversity of a cryptic fossil group: The “chitinozoan animal” F Paris, J Nõlvak Geobios 32 (2), 315-324, 1999 | 111 | 1999 |
| Epipelagic chitinozoan biotopes map a steep latitudinal temperature gradient for earliest Late Ordovician seas: implications for a cooling Late Ordovician climate TRA Vandenbroucke, HA Armstrong, M Williams, F Paris, K Sabbe, ... Palaeogeography, Palaeoclimatology, Palaeoecology 294 (3-4), 202-219, 2010 | 105 | 2010 |
| Carbon isotope stratigraphy in the latest Ordovician of Estonia D Kaljo, L Hints, T Martma, J Nõlvak Chemical Geology 175 (1-2), 49-59, 2001 | 91 | 2001 |
| Precise chitinozoan dating of Ordovician impact events in Baltoscandia Y Grahn, J Nõlvak, F Paris Journal of Micropalaeontolgy 15 (1), 21-35, 1996 | 90 | 1996 |
| The global stratotype section and point (GSSP) for the base of the Katian Stage of the Upper Ordovician Series at Black Knob Ridge, southeastern Oklahoma, USA D Goldman, SA Leslie, J Nõlvak, S Young, SM Bergström, WD Huff Episodes Journal of International Geoscience 30 (4), 258-270, 2007 | 85 | 2007 |
| New isotopic data solving an old biostratigraphic problem: the age of the upper Ordovician brachiopod Holorhynchus giganteus PJ Brenchley, JD Marshall, L Hints, J Nolvak Journal of the Geological Society 154 (2), 335-342, 1997 | 80 | 1997 |
| Palaeokarst evidence for widespread regression and subaerial exposure in the middle Katian (Upper Ordovician) of Baltoscandia: significance for global climate M Calner, O Lehnert, J Nõlvak Palaeogeography, Palaeoclimatology, Palaeoecology 296 (3-4), 235-247, 2010 | 72 | 2010 |
| Ordovician chitinozoan biozonation of Baltoscandia J Nõlvak ACTA-UNIVERSITATIS CAROLINAE GEOLOGICA, 287-290, 1999 | 71 | 1999 |
| Biodiversity patterns of Ordovician marine microphytoplankton from Baltica: comparison with other fossil groups and sea-level changes O Hints, A Delabroye, J Nõlvak, T Servais, A Uutela, Å Wallin Palaeogeography, Palaeoclimatology, Palaeoecology 294 (3-4), 161-173, 2010 | 65 | 2010 |
| Hirnantian (latest Ordovician) bio-and chemostratigraphy of the Stirnas-18 core, western Latvia. L Hints, O Hints, D Kaljo, T Kiipli, P Männik, J Nõlvak, H Pärnaste Estonian Journal of Earth Sciences 59 (1), 2010 | 65 | 2010 |
