| The quest for internationally recognized divisions of Cambrian time G Geyer, J Shergold Episodes Journal of International Geoscience 23 (3), 188-195, 2000 | 330 | 2000 |
| Duration of the Early Cambrian: U-Pb ages of volcanic ashes from Avalon and Gondwana E Landing, SA Bowring, KL Davidek, SR Westrop, G Geyer, W Heldmaier Canadian Journal of Earth Sciences 35 (4), 329-338, 1998 | 282 | 1998 |
| Cambrian evolutionary radiation: context, correlation, and chronostratigraphy—overcoming deficiencies of the first appearance datum (FAD) concept E Landing, G Geyer, MD Brasier, SA Bowring Earth-Science Reviews 123, 133-172, 2013 | 203 | 2013 |
| New high‐resolution age data from the Ediacaran–Cambrian boundary indicate rapid, ecologically driven onset of the Cambrian explosion U Linnemann, M Ovtcharova, U Schaltegger, A Gärtner, M Hautmann, ... Terra Nova 31 (1), 49-58, 2019 | 162 | 2019 |
| The Cambrian of the Moroccan Atlas regions G Geyer, E Landing Morocco 95, 7-46, 1995 | 159 | 1995 |
| A unified lower–middle Cambrian chronostratigraphy for West Gondwana G Geyer, E Landing Acta Geologica Polonica 54 (2), 179-218, 2004 | 156 | 2004 |
| Palaeogeographical controls on the Cambrian trilobite immigration and evolutionary patterns reported in the western Gondwana margin JJ Álvaro, O Elicki, G Geyer, AWA Rushton, JH Shergold Palaeogeography, Palaeoclimatology, Palaeoecology 195 (1-2), 5-35, 2003 | 139 | 2003 |
| Ichnofossil assemblages from the Nama Group (Neoproterozoic–Lower Cambrian) in Namibia and the Proterozoic–Cambrian boundary problem revisited G Geyer, A Uchman Beringeria Special Issue 2, 175-202, 1995 | 139 | 1995 |
| Latest Early Cambrian small shelly fossils, trilobites, and Hatch Hill dysaerobic interval on the Québec continental slope ED Landing, G Geyer, KE Bartowski Journal of Paleontology 76 (2), 287-305, 2002 | 118 | 2002 |
| Die marokkanischen Ellipsocephalidae (Trilobita: Redlichiida) G Geyer Beringeria-Würzburger geowissenschaftliche Mitteilungen, 1-363, 1990 | 113 | 1990 |
| A comprehensive Cambrian correlation chart G Geyer Episodes Journal of International Geoscience 42 (4), 321-332, 2019 | 111 | 2019 |
| Global standard names for the lowermost Cambrian series and stage E Landing, S Peng, LE Babcock, G Geyer, M Moczydlowska-Vidal Episodes Journal of International Geoscience 30 (4), 287-289, 2007 | 104 | 2007 |
| Mittelkambrische mollusken aus Marokko und Spanien G Geyer Senckenbergiana lethaea 67 (1/4), 55-118, 1986 | 104 | 1986 |
| The Henson Gletscher Formation, North Greenland, and its bearing on the global Cambrian Series 2–Series 3 boundary G Geyer, JS Peel Bulletin of Geosciences 86 (3), 465-534, 2011 | 98 | 2011 |
| Revised lower to lower middle Cambrian biostratigraphy of Morocco G Geyer Newsletters on Stratigraphy 22 (2-3), 53-70, 1990 | 97 | 1990 |
| The base of a revised Middle Cambrian: are suitable concepts for a series boundary in reach? G Geyer Geosciences Journal 9, 81-99, 2005 | 91 | 2005 |
| Middle Cambrian molluscs from Idaho and early conchiferan evolution G Geyer New York State Museum Bulletin 481 (1), 69-86, 1994 | 89 | 1994 |
| Intercontinental, trilobite-based correlation of the Moroccan early Middle Cambrian G Geyer Canadian Journal of Earth Sciences 35 (4), 374-401, 1998 | 81 | 1998 |
| Challenges in defining the base of Cambrian Series 2 and Stage 3 X Zhang, P Ahlberg, LE Babcock, DK Choi, G Geyer, R Gozalo, ... Earth-Science Reviews 172, 124-139, 2017 | 78 | 2017 |
| Cambrian G Geyer, O Elicki, O Fatka, A Żylińska | 78 | 2008 |
