| Geology and ages of the islands AL Carreño, J Helenes Island Biogeography in the Sea of Cortés II, 2002 | 183 | 2002 |
| Neogene sedimentary evolution of Baja California in relation to regional tectonics J Helenes, AL Carreño Journal of South American Earth Sciences 12 (6), 589-605, 1999 | 96 | 1999 |
| Palynology and chronostratigraphy of the Upper Cretaceous in the subsurface of the Barinas area, western Venezuela J Helenes, C De Guerra, J Vasquez AAPG bulletin 82 (7), 757-772, 1998 | 87 | 1998 |
| Stratigraphy and structure of the Altar basin of NW Sonora: Implications for the history of the Colorado River delta and the Salton trough M Pacheco, A Martín-Barajas, W Elders, JM Espinosa-Cardeña, ... Revista mexicana de ciencias geológicas 23 (1), 1-22, 2006 | 77 | 2006 |
| Morphological analysis of Mesozoic‐Cenozoic Cribroperidinium (Dinophyceae), and taxonomic implications. J Helenes Palynology 8 (1), 107-137, 1984 | 67 | 1984 |
| Middle to late Miocene chronostratigraphy and development of the northern Gulf of California J Helenes, AL Carreño, RM Carrillo Marine Micropaleontology 72 (1-2), 10-25, 2009 | 66 | 2009 |
| Dinoflagellate cysts and bloom events at todos Santos Bay, Baja California, Mexico, 1999–2000 JL Peña-Manjarrez, J Helenes, G Gaxiola-Castro, E Orellana-Cepeda Continental Shelf Research 25 (11), 1375-1393, 2005 | 66 | 2005 |
| Dinoflagellates from Cretaceous to Early Tertiary rocks of the Sebastian Vizcaino Basin, Baja California, Mexico J Helenes Pacific Section SEPM, 1984 | 45 | 1984 |
| Palynology and sequence stratigraphy of the Cretaceous of eastern Venezuela J Helenes, D Somoza Cretaceous Research 20 (4), 447-463, 1999 | 38 | 1999 |
| Late Neogene stratigraphy and tectonic control on facies evolution in the Laguna Salada Basin, northern Baja California, Mexico A Martı́n-Barajas, S Vázquez-Hernández, AL Carreño, J Helenes, ... Sedimentary Geology 144 (1-2), 5-35, 2001 | 37 | 2001 |
| Oligocene‐Miocene palynomorph assemblages from eastern Venezuela J Helenes, D Cabrera Palynology 27 (1), 5-25, 2003 | 36 | 2003 |
| Palynological record (1483–1994) of Gymnodinium catenatum in Pescadero Basin, southern Gulf of California, Mexico JG Flores-Trujillo, J Helenes, JC Herguera, E Orellana-Cepeda Marine Micropaleontology 73 (1-2), 80-89, 2009 | 31 | 2009 |
| Environmental factors influencing the variability of Lingulodinium polyedrum and Scrippsiella trochoidea (Dinophyceae) cyst production JL Peña-Manjarrez, G Gaxiola-Castro, J Helenes-Escamilla Ciencias Marinas 35 (1), 1–14-1–14, 2009 | 30 | 2009 |
| Changes in Miocene through Pleistocene dinoflagellates from the Eastern Equatorial Pacific (ODP Site 1039), in relation to primary productivity M Zegarra, J Helenes Marine Micropaleontology 81 (3-4), 107-121, 2011 | 29 | 2011 |
| Cysts of lingulodinium polyedrum, red tide producing organism in the todos santos bay (winter-spring, 2000) JL Peña-Manjarrez, G Gaxiola-Castro, J Helenes-Escamilla, ... Ciencias Marinas 27 (4), 543-558, 2001 | 25 | 2001 |
| Some variations in the paratabulation of gonyaulacoid dinoflagellates J Helenes Palynology 10 (1), 73-110, 1986 | 25 | 1986 |
| Palinomorfos do Campaniano (Cretáceo Superior) da Bacia de Pelotas, Rio Grande do Sul: implicações bioestratigráficas e paleoambientais E PREMAOR, PA de SOUZA, A Mitsuru, J HELENES Pesquisas em Geociências 37 (1), 63-79, 2010 | 22 | 2010 |
| Paleontological evidence of the Campanian to Early Paleocene paleogeography of Baja California J Helenes, MA Téllez-Duarte Palaeogeography, Palaeoclimatology, Palaeoecology 186 (1-2), 61-80, 2002 | 22 | 2002 |
| Morphological variations among species of the fossil dinoflagellate genus Gonyaulacysta J Helenes, J Lucas‐clark Palynology 21 (1), 173-196, 1997 | 22 | 1997 |
| Miocene biostratigraphy and paleoecology from dinoflagellates, benthic foraminifera and calcareous nannofossils on the Colombian Pacific coast AF Duque-Herrera, J Helenes, A Pardo-Trujillo, JA Flores-Villarejo, ... Marine Micropaleontology 141, 42-54, 2018 | 19 | 2018 |
ANDRES PARDO TRUJILLOProfesor Universidad de CaldasVerified email at ucaldas.edu.co