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Gerta Keller Publications

1982. Barron, J. A., and G. Keller, 1982. Widespread Miocene deep-sea hiatuses: Coincidence with periods of global cooling. Geology, 10, 577-581. PDF

1983. Keller, G., and J. A. Barron, 1983. Paleoceanographic implications of Miocene deep-sea hiatuses. Geol. Society Amer. Bulletin, 94, 590-613. PDF

1988. Keller, G., 1988. Extinction, Survivorship and Evolution of Planktic Foraminifera across the Cretaceous/Tertiary Boundary at El Kef, Tunisia. Marine Micropaleontology, 13, 239-263. PDF

1989. Keller, G., 1989. Extended period of extinctions across the Cretaceous/Tertiary boundary in planktonic foraminifera of continental-shelf sections: Implications for impact and volcanism theories. Geol. Soc. of America Bulletin, 101, 1408-1419. PDF

1991. MacLeod, N. and G. Keller, 1991. Hiatus distributions and mass extinctions at the Cretaceous/Tertiary boundary. Geology, 19, 497-501. PDF

1993. Keller, G., N. MacLeod, J. B. Lyons, and C. B. Officer, 1993. Is there evidence for Cretaceous-Tertiary boundary-age deep-water deposits in the Caribbean and Gulf of Mexico? Geology, 21, 776-780. PDF

1995. Ward, W. C., G. Keller, W. Stinnesbeck, and T. Adatte, 1995. Yucatán subsurface stratigraphy: Implications and constraints for the Chicxulub impact. Geology, 23(10), 873-876. PDF

1995. Keller, G., L. Li, and N. MacLeod, 1995. The Cretaceous/Tertiary boundary stratotype section at El Kef, Tunisia: how catastrophic was the mass extinction? Paleogeogr., Paleoclimatol., Paleoecol., 119, 221-254. PDF

1996. Adatte, T., W. Stinnesbeck, and G. Keller, 1996. Lithostratigraphic and mineralogical correlations of near-K/T boundary clastic sediments in NE Mexico: Implications for origin and nature of deposition. Geol. Society Amer., Special Paper 307, 211-226.

1996. Keller, G., 1996. The K/T mass extinction in planktic foraminifera biotic constraints for catastrophe theories. In, MacLeod, N. and Keller, G. (eds.), The Cretaceous-Tertiary mass extinction: Biotic and environmental events, Norton Press, New York, p. 63-100.

1996. Keller, G. and W. Stinnesbeck, 1996. Sea level changes, clastic deposits and megatsunamis across the Cretaceous-Tertiary boundary. In, MacLeod, N., and Keller, G. (eds.), The Cretaceous-Tertiary mass extinction: Biotic and environmental events, Norton Press, New York, p. 415-450.

1996. Keller, G., and W. Stinnesbeck, 1996. Near-K/T age of clastic deposits from Texas to Brazil: impact, volcanism and/or sea-level lowstand? Terra Nova, 8, 277-285.

1996. Lopez-Oliva, J. G., and G. Keller, 1996. Age and stratigraphy of near-K/T boundary clastic deposits in NE Mexico. Geol. Soc. Amer., Special Paper 307, 227-242.

1996. Lu, G., and G. Keller, 1996. Separating ecological assemblages using stable isotope signals: late Paleocene to early Eocene planktic foraminifera, DSDP Site 577, J. Foram. Res., 26(2), 103-112.

1996. Lu, G., G. Keller, T. Adatte, N. Ortiz, and E. Molina, 1996. Long-term (105) or short-term (103) d13C excursion near the Paleocene-Eocene transition: evidence from the Tethys. Terra Nova, 8, 347-355.

1996. Pardo, A., N. Ortiz, and G. Keller, 1996. Latest Maastrichtian and K/T boundary foraminiferal turnover and environmental changes at Agost, Spain. In, MacLeod, N. and Keller, G., (eds.), The Cretaceous-Tertiary Mass Extinction: Biotic and Environmental Effects, Norton Press, New York, p. 157-191.

1996. Stinnesbeck, W. and G. Keller, 1996. Environmental changes across the Cretaceous-Tertiary boundary in northeastern Brazil. In, MacLeod, N. and Keller, G., (eds.), The Cretaceous-Tertiary Mass Extinction: Biotic and Environmental Effects, Norton Press, New York, p. 451-470.

1996. Stinnesbeck, W., G. Keller, T. Adatte, J. G. Lopez-Oliva, and N. MacLeod, 1996. Cretaceous-Tertiary boundary clastic deposits in NE Mexico: Bolide impact or sea-level lowstand? In, MacLeod, N. and Keller, G., (eds.), The Cretaceous-Tertiary Mass Extinction: Biotic and Environmental Effects, Norton Press, New York, p. 471-518.

1996. Stinnesbeck, W. and G. Keller, 1996. K/T boundary clastic deposits in NE Mexico and NE Brazil: Evidence for megatsunamis or sea-level changes? Geol. Soc. Amer., Special Paper 307, p. 197-210.

1996. Vicenzi, V., G. Keller and W. Stinnesbeck, 1996. Glass in near-K/T boundary Mexican sediments” A microanalytical study. Geol. Soc. France, Paris, Dec. 2-3.

1997. Keller, G., T. Adatte, C. Hollis, M. Ordóñez, I. Zambrano, N. Jiménez, W. Stinnesbeck, A. Aleman, and W. Hale-Erlich, 1997. The Cretaceous/Tertiary boundary event in Ecuador: reduced biotic effects sue to eastern boundary current setting. Marine Micropaleontology, 31, 97-133. PDF

1997. Keller, G., J. G. Lopez-Oliva, W. Stinnesbeck, and T. Adatte, 1997. Age, stratigraphy, and deposition of near-K/T siliciclastic deposits in Mexico: Relation to bolide impact? Geol. Soc. Amer. Bull., 109, 410-428. PDF

1997. Stinnesbeck, W., G. Keller, J. De La Cruz, C. De León, N. MacLeod, J. E. Whittacker, 1995. The Cretaceous-Tertiary boundary in Guatemala: limestone breccia deposits from the South Peten Basin. Geologische Rundschau, 86, 686-709.

1997. Pardo, A., G. Keller, E. Molina, and J. I. Canudo, l997. Planktic foraminiferal turnover across the Paleocene-Eocene transition at DSDP Site 401, Bay of Biscay, North Atlantic. Marine Micropaleontology, 29, 129-158.

1998. Bolle, M.-P., T. Adatte, G. Keller, K. Salis, and J. Hunziker, l998. Stratigraphy, mineralogy and geochemistry of the Trabakua Pass and Ermua sections in Spain: Paleocene-Eocene transition. Ecologae Geol. Helv., 91, 1-25.

1998. Li, L., and G. Keller, l998. Maastrichtian climate, productivity and faunal turnovers in planktic foraminifera in South Atlantic DSDP Sites 525A and 21, Marine Micropaleontology, 33, 55-86. PDF Version

1998. Keller, G., L. Li, W. Stinnesbeck, and E. Vicenzi, l998. The K/T mass extinction, Chicxulub and the impact-kill effect. Geol. Soc. France, 169940, 485-491.

1998. Keller, G., T. Adatte, W. Stinnesbeck, D. Stüben, U. Kramar, Z. Berner, L. Li, and K. von Salis Perch-Nielsen, l998. The Cretaceous-Tertiary transition on the shallow Saharan Platform in southern Tunisia. GeoBios, v. 30, 7, 951-975.

1998. Li, L. and G. Keller, l998. Diversification and extinction in Campanian-Maastrichtian planktic foraminifera of northwestern Tunisia. Eclogae Geol. Helv., 91: 75-102.

1998. Oberhänsli, H., G. Keller, T. Adatte, and A. Pardo, l998. Environmentally and diagenetically controlled changes across the K/T transition at Koshak, Mangyshlak (Kazakhstan). Geol. Soc. France, 169(4), 493-501.

1998. Lu, G., T. Adatte, G. Keller, and E. Molina, l998. Abrupt climatic, oceanographic and ecologic changes near the Paleocene-Eocene transition in the deep Tethys basin, Ecologae Geol. Helv., 91, 293-306.

1998. Lu, G., G. Keller, and A. Pardo, l998. Stability and change in Tethyan planktic foraminifera across the Paleocene-Eocene transition. Marine Micropaleontology 35, 203-233.

1998. Li, L., and G. Keller, l998. Abrupt deep-sea warming at the end of the Cretaceous. Geology, 26(11), 995-998. PDF

1999. Bolle, M-P., T. Adatte, G. Keller, K. von Salis Perch-Nielsen, and S. Burns, 1999. Climate and sea level fluctuations during the Paleocene-Eocene transition in Tunisia. Bull., Geol. Soc. France, 170(5), 661-680.

1999. Pardo, A., G. Keller, and H. Oberhänsli, 1999. Paleoecologic and Paleoceanographic evolution of the Tethyan realm during the Paleocene-Eocene transition, J. Foram. Res., 29(l), 37-57. PDF

1999. Remane, J. Keller, G., Hardenbol, J. and M. Ben Haj Ali, l999. Report on the International Workshop on Cretaceous-Paleogene Transitions, Episodes, 22(1), 47-48.

1999. Li , L., G. Keller, and W. Stinnesbeck, 1999. The late Campanian and Maastrichtian in northwestern Tunisia: Paleoenvironmental inferences from lithology,macrofauna and benthic foraminifera. Creteaceous Research, 20, 231-252. PDF Version

1999. Li, L. and G. Keller, l999. Variability in Late Cretaceous climate and deep waters: Evidence from stable isotopes. Marine Geology, 161, 171-190. PDF Version

1999. Pardo, A. and G. Keller, 1999. Aspectos paleoceanográficos y paleoecológicos del límite Cretácico/Terciario en la Península de Mangyshlak (Kazakstan): inferencias a partir de foraminíferos planctónicos. Rev. Esp. Micropal., 31 no. 2

1999. Stinnesbeck, W., G. Keller, T. Adatte, D. Stüben, U. Kramar, Z. Berner, C. Desremeaux, and E. Moliere, 2000. Belox, Haiti, revisited: multiple events across the Cretaceous-Tertiary transition in the Caribbean? Terra Nova, v. 11, 303-310.

2000. Keller, G. and W. Stinnesbeck, 2000. Iridium and the K/T boundary at El Caribe,Guatemala. International Journal of Earth Sciences, 88, 840-843. PDF Version.

2000. Li, L., G. Keller, T. Adatte, and W. Stinnesbeck, 2000. Late Cretaceous sea-level changes in Tunisia: a multi-disciplinary approach. Journal of Geological Society, London, 157, 447-458. PDF Version

2000. Bolle, M.-P., A. Pardo, K. U. Hinrichs, T. Adatte, K. von Salis, S. Burns, G. Keller, and N. Muzylev, 2000. The Paleocene-Eocene transition in the marginal northeastern Tethys (Kazakhstan and Uzbekistan). In. J. Earth Sci., 89, 390-414.

2001. Stinnesbeck, W., P. Schulte, F. Lindenmaier, T. Adatte, M. Affolter, L. Schilli, G. Keller, D. Stüben, Z. Berner, U. Kramer, S. Burns, and J.G. Lopez-Oliva, 2001. Late Maastrichtian age of spherule deposits in northeastern Mexico: implications for Chicxulub scenario. Can. J. Earth Sci., 38, 229-238.

2001. Keller, G., T. Adatte, W. Stinnesbeck, D. Stüben and Z. Berner, 2001. Age, chemo- and biostratigraphy of Haiti spherule-rich deposits: a multi-event K-T scenario. Can. J. Earth Sci., 38, 197-227. PDF

2001. Keller, G., 2001. The end-cretaceous mass extinction in the marine realm: year 2000 assessment. Planetary and Space Science, 49, 817-830. PDF Version

2001. Keller, G., Q. Han, T. Adatte, and S. J. Burns, 2001. Palaeoenvironment of the Cenomanian-Turonian transition at Eastbourne, England. Cretaceous Research, 22, 391-422. PDF Version

2001. Tantawy, A.A., G. Keller, T. Adatte, W. Stinnesbeck, A. Kassab, and P. Schulte, P, 2001. Maastrichtian to Paleocene depositional environment of the Dakhla Formation, Western Desert, Egypt: sedimentology, mineralogy and integrated micro- and macrofossil biostratigraphies. Cretaceous Research, 22, 795-827. PDF

2001. Kramar, U., D. Stüben, Z. Berner, W. Stinnesbeck, H. Philipp, and G. Keller, 2002. Are Ir anomalies sufficient and unique indicators for cosmic events? Planetary and Space Science, 49, 831-837. PDF

2002. Keller, G., T. Adatte, W. Stinnesbeck, M. Affolter, L. Schilli, and J. G. Lopez-Oliva, 2002. Multiple spherule layers in the late Maastrichtian of northeastern Mexico. GSA Special Paper, 356, 145-162. PDF

2002. Stüben, D., U. Kramer, Z. Berner, J. D. Eckhardt, W. Stinnesbeck, G. Keller, T. Adatte, and K. Heide, 2002. Two anomalies of platinum group elements above the Cretaceous-Tertiary boundary at Beloc, Haiti: Geochemical context and consequences for the impact scenario: Geological Society of America, Special Volume, 356, 163-188.  PDF

2002. Adatte, T. G. Keller, S. Burns, K. H. Stoykova, M. I. Ivanov, D. Vangelov, U. Kramer, and D. Stüben, 2002. Paleoenvironment across the Cretaceous-Tertiary (K-T) transition at Bjala, eastern Bulgaria. GSA Special Paper 356, 231-252. PDF

2002. Keller, G., T. Adatte, W. Stinnesbeck, V. Luciani, N. Karoui-Yaakoub, D. Zaghbib-Turki, 2002. Paleoecology of the Cretaceous-Tertiary mass extinction in planktonic foraminifera. Paleogeogr., Paleoclimatol., Paleoecol., 178, 257-297. PDF

2002. Karoui-Yaakoub, N., D. Zaghbib-Turki, and G. Keller, 2002. The Cretaceous-Tertiary (K-T) mass extinction in planktic foraminifera at Elles I and El Melah, Tunisia. Paleogeogr., Paleoclimatol., Paleoecol., 178, 233-256. PDF (1434 K)

2002, Abramovich, S. and G. Keller, 2002. High stress late Maastrichtian paleoenvironment: inference from planktonic foraminifera in Tunisia. Paleogeogr., Paleoclimatol., Paleoecol., 178, 145-164. PDF

2002. Stüben, D., U. Kramar, Z. Berner, M. Leosson, G. Keller, T. Adatte, and W. Stinnesbeck, 2002. High resolution carbon and oxygen isotope profiles of foraminifera and the Ca-normaized Sr curve of the late Maastrichtian at Elles, Tunisia. Paleogeogr., Paleoclimatol., Paleoecol., 178, 321-345. PDF (1314 K)

2002. Adatte, T., G. Keller, and W. Stinnesbeck, 2002. Late Cretaceous to early Paleocene climate and sea-level fluctuations: the Tunisian record. Paleogeogr., Paleoclimatol., Paleoecol., 178, 165-196. PDF

2002.  Keller, G., W. Stinnesbeck, T. Adatte, 2002. Slumping and a sandbar deposit at the Cretaceous-Tertiary boundary in the El Tecolote section (northeastern Mexico): An impact-induced sediment gravity flow – Comment. Geology, 30, 382-383. PDF

2002. Stinnesbeck, W., G. Keller, P. Schulte, D. Stüben, Z. Berner, U. Kramar, J. Guadalupe Lopez-Oliva, 2002. The Cretaceous-Tertiary (K/T) Boundary transition at Coxquihui, state of Veracruz, Mexico: evidence for an early Danian impact event? Am. J. S. Amer. Res., 15, 497-509. PDF

2002. Keller, G., 2002. Guembelitria-dominated late Maastrichtian planktic foraminiferal assemblages mimic early Danian in central Egypt. Marine Micropaleontology, 47, 71-99. PDF

2002. Keller, G., T. Adatte, S. J. Burns, and A. A. Tantawy, 2002. High-stress paleoenvironment during the late Maastrichtian to early Paleocene in Central Egypt. Paleogeogr., Paleoclimato., Paleoecol., 187, 35-60. PDF

2002. Abramovich, S., G. Keller, T. Adatte, W. Stinnesbeck, L. Hottinger, D. Stüben, Z. Berner, B. Ramanivosoa, and A. Randriamanantenasoa, 2002. Age and Paleoenvironment of the Maastrichtian-Paleocene of the Mahajanga Basin, Madagascar: a multidisciplinary approach. Marine Micropaleontology, 47, 17-70. PDF

2003. Schulte, P., W. Stinnesbeck, D. Stüben, U. Kramar, Z. Berner, G. Keller, and T. Adatte, 2003. Fe-rich an K-rich mafic spherules from slumped and channelized Chicxulub ejecta deposits in the northern La Sierrita area, NE Mexico. Int. J. Earth Sci., 92, 114-142. PDF

2003. Stüben, D., U. Kramar, Z. A. Berner, M. Meudt, G. Keller, S. Abramovich, T. Adatte, U. Hambach, and W. Stinnesbeck, 2003. Late Maastrichtian paleoclimatic and paleoceanographic changes inferred from Sr/Ca ratio and stable isotopes. Paleoclimatol. Paleoecol. Paleogeogr., 199, 107-127. PDF

2003. Keller, G., W. Stinnesbeck, T. Adatte, and D. Stüben, 2003. Multiple impacts across the Cretaceous-Tertiary boundary. Earth Science Reviews, 62, 327-363. PDF

2003. Keller, G., W. Stinnesbeck, T. Adatte, B. Holland, D. Stüben, M. Harting, C. de Leon, and J. de la Cruz,  2003. Spherule deposits in Cretaceous-Tertiary boundary sediments in Belize and Guatemala. J. Geol. Soc., London, 160, 783-795. PDF

2003. Keller, G., 2003. Biotic effects of impacts and volcanism. Earth and Planetary Science Letters, 215, 249-264. PDF

2003. Keller, G., T. Adatte, and W. Stinnesbeck, 2003. The non-smoking gun. Geoscientist, 13 (11), 8-11.

2003. Abramovich, S., G. Keller, D. Stüben, and Z. Berner, 2003. Characterization of late Campanian and Maastrichtian planktonic foraminiferal depth habitats and vital activities based on stable isotopes. Paleoclimatol. Paleoecol. Paleogeogr., 202, 1-29. PDF

2003. Abramovich, S. and G. Keller, 2003.  Planktonic foraminiferal response to the latest Maastrichtian abrupt warm event: a case study from South Atlantic DSDP Site 525A. Marine Micropaleontology, 48, 225-249. PDF

2003. Keller, G., and A. Pardo, 2003. Age and paleoenvironment of the Cenomanian-Turonian global stratotype section and point at Pueblo, Colorado. Marine Micropaleontology, 51, 95-128. PDF

2004. Tantawy, A.A.A. and G. Keller,  2004. Biotic Effects of volcanism on calcareous nannofossils and planktic foraminifera: Ninetyeast Ridge, Indian Ocean. Egyptian Journal of Paleontolology, 3, 1-23.

2004. Keller, G.,  2004. Low-Diversity, Late Maastrichtian and Early Danian Planktic Foraminiferal Assemblages of the Eastern Tethys. J. Foram. Res., 34(1), 49-73. PDF
 
2004. Keller, G. and A. Pardo, 2004. Paleoecology of the Cenomanian-Turonian Stratotype Section (GSSP) at Pueblo, Colorado. Marine Micropleontology, 51, 95-128. PDF
 
2004. Keller, G., Z. Berner, T. Adatte, and D. Stüben, 2004. Cenomanian-Turonian and δ 13C, and δ 18O, sea-level and salinity variations at Pueblo, Colorado. Paleogeogr., Paleoclimatol., Paleoecol.,  211, 19-43.  PDF

2004. Keller, G., T. Adatte, W. Stinnesbeck, M. Rebolledo-Vieyra, J. Urrutia Fucugauchi, U. Kramar, and D. Stüben,  2004. Chicxulub impact predates the K-T boundary mass extinction. PNAS 101(11), 3753-3758. PDF
 
2004. Keller, G., T. Adatte, W. Stinnesbeck, D. Stüben, Z. Berner, U. Kramar, and M. Harting, 2004.  More evidence that the Chicxulub impact predates the K/T mass extinction. Meteoritics and Planetary Science (MAPS), 39(7), 1127-1144. PDF
 
2004. Stinnesbeck, W., G. Keller, T. Adatte, M. Harting, D. Stüben, G. Istrate, and U. Kramar, 2004. Yaxcopoil-1 and the Chicxulub impact. Int. J. Earth Sci., 93(6), 1042 - 1065. PDF
 
2004. Keller, G. and A. Pardo, 2004. Disaster opportunists Guembelitrinidae: index for environmental catastrophes. Marine Micropaleontology, 53, 83-116. PDF
 
2004. Keller, G.,2004.  Suche nach der Ursache des Massensterbens vor 65 Millionen Jahren. Werdenberger Jahrbuch, p. 189-200. PDF

2004. Keller, G., 2004. Eine Salezer Bauerntochter schreibt ein Kapitel der Erdgeschichte neu. 183-189. PDF

2004. Keller, G. , 2004.  La Météorite innocentée. La Recherche, 379, 30-36.

2004. Keller, G., T. Adatte, W. Stinnesbeck, D. Stüben, Z. Berner, U. Kramar, and M. Harting, 2004. More evidence that the Chicxulub impact predates the K/T mass extinction. Meteoritics & Planetary Science, 39, 1127-1144. PDF

2004. Keller, G. and T. Adatte, 2004. Basinward transport of Chicxulub ejecta by tsunami-induced backflow, La Popa basin, NE Mexico: COMMENT. Geology, Online Forum, e88. PDF
 
2005. Adatte, T. G. Keller, D. Stüben, M. Harting, U. Kramar, W. Stinnesbeck, S. Abramovich, and C. Benjamini,  2005. Late Maastrichtian and K/T paleoenvironment of the eastern Tethys (Israel): mineralogy, trace and platinum group elements, biostratigraphy and faunal turnovers. Bulletin Société Géologique de France. 176, 1, 37-55.  PDF
 
2005. Keller, G., 2005. Impacts, volcanism and mass extinction: random coincidence or cause and effect? Australian Journal of Earth Sciences, 52, 725-757. PDF
 
2005. Stüben, D., M. Harting, U. Kramar, W. Stinnesbeck, G. Keller, and T. Adatte,  2005. High resolution geochemical record in Mexico during the Cretaceous-Tertiary transition. Geochmica et Cosmochimica Acta, 69, (10), 2559-2579. PDF
 
2005. Stinnesbeck, W., G. Ifrim, H. Schmidt, A. Rindfleisch, M-C. Buchy, E. Frey, A. H. González-González, H. J. Vega, L. Cavin, G. Keller, and K. T. Smith, 2005. A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, County of Muzquiz, Coahuila, Northeastern Mexico. Revista  Mexicana Ciencias Geologicas, v. 22 (3), 401-418.
 
2005. Stinnesbeck, W., G. Keller, A. Schafhauser, and S. Götz, 2005. Basinward transport of Chicxulub ejecta by tsunami-induced backflow, La Popa basin, NE.Mexico: Comment: Geology Online, September 2005, p. e86, doi: 10.1130/0091-7613(2005)31<e86:BTOCEB>2.0.CO;2.

2005. Keller, G., 2005.  Biotic effects of late Maastrichtian mantle plume volcanism: implications for impacts and mass extinctions. Lithos, 79, 317-341. PDF

2006. Keller, G. and A. Pardo, 2006. Qué mató a los dinosaurios? Muy Interesante, May 2006. PDF
 
2007. Keller, G. and A. Pardo, 2007. Guembelitria blooms-environmental   catastrophes index. In: Devesh K. Sinha (ed.) Microplaleontology - Application in stratigraphy and paleoocenography, Narosa Publishing House Pvt. Ltd, Dehli, India, p 211-225.
 
2007. Keller, G., T. Adatte, Z. Berner, M. Harting, G. Baum, M. Prauss, A. A. Tantawy, and D. Stüben, 2007. Chicxulub impact predates K-T boundary: New evidence from Brazos, Texas. Earth and Planet. Sci. Letters, 255, 339-356. PDF
 
2007.  Keller, G., 2007. The Chicxulub Impact and K-T Mass Extinction in Texas. Bulletin of the South Texas Geol. Soc., XLVII (9), 15-44. PDF
 
2007.   Mort, H. P., T. Adatte, K. B. Föllmi, G. Keller, P. Steinmann, V. Matera, Z. Berner, D. Stüben, 2007. Phosphorus and the roles of productivity and nutrient recycling during oceanic anoxic event 2. Geology, 35 (6), 483-486. PDF
 
2007. Darvishzad, B., E. Ghasemi-Nejad, S. Ghourchaei, and G. Keller, 2007.  Planktonic Foraminiferal Biostratigraphy and Faunal Turnover across the Cretaceous-Tertiary Boundary in Southwestern Iran. Journal of Sciences, Islamic  Republic of Iran, 18(2), 139-149. PDF
 
2007. Keller, G., T. Adatte, A. A. Tantawy, Z. Berner, W. Stinnesbeck, D. Stüben, and H. A. Leanza, 2007. High stress late Maastrichtian - early Danian palaeoenvironment in the Neuquén Basin, Argentina. Cretaceous Research, 28, 939-960. PDF

2008. Keller, G., T. Adatte, G. Baum, and Z. Berner, 2008. Reply to ‘Chicxulub impact predates K-T boundary: New evidence from Brazos, Texas’ Comment by Schulte et al. Earth and Planet. Sci. Letters, 269, 620-628. PDF

2008. Keller, G., 2008. Impact stratigraphy: Old principle - new reality. GSA Special Paper 437, p.147-178. PDF

2008. Keller, G., T. Adatte, S. Gardin, A. Bartolini, and S. Bajpai, 2008. Main Deccan volcanism phase ends near K-T boundary: Evidence from the Krishna- Godavari Basin, SE India. Earth and Planet. Sci. Letters, 268, 293-311. PDF

2008. Pardo, A. and G. Keller, 2008. Biotic effects of environmental catastrophes at the end of the Cretaceous and early Tertiary: Guembelitria and Heterohelix blooms. Cretaceous Research, 29, 1058-1073; doi:10.1016/j.cretres.2008.05.031. PDF

2008. Keller, G., 2008. Cretaceous climate, volcanism, impacts, and biotic effects. Cretaceous Research, 29, 754-771; doi:10.1016/j.cretres.2008.05.030. PDF

2008. Keller, G., T. Adatte, Z. Berner, E. H. Chellai, and D. Stüben, 2008. Oceanic events and biotic effects of the Cenomanian-Turonian anoxic event, Tarfaya Basin, Morocco. Cretaceous Research, 29, 976-994, doi:10.1016/j.cretres.2008.05.020 PDF

2008. Mort, H. P., T. Adatte, G. Keller, D. Bartels, K. B. Föllmi, P. Steinmann, Z. Berner, E. H. Chellai, 2008. Organic carbon deposition and phosphorus accumulation during Oceanic Anoxic Event 2 in Tarfaya, Morocco. Cretaceous Research, 29, 1008-1023, doi:10.1016/j.cretres.2008.05.026. PDF

2008. Gertsch, B., G. Keller, T. Adatte, Z. Berner, A. S. Kassab, A. A. Tantawy,  A. M. El-Sabbagh, and D. Stüben, 2008. Cenomanian-Turonian transition in a shallow water sequence of the Sinai, Egypt. Int. J. Earth Sciences (Geol. Rundsch) DOI 10.1007/s00531-008-0374-4. PDF

2009. Keller, G., S. Abramovich, Z. Berner, and T. Adatte, 2009. Biotic effects of the Chicxulub impact, K-T catastrophe and sea level change in Texas. Paleogeogr., Paleoclimatol., Paleoecol., 271, 52-68. doi:10.1016/j.palaeo.2008.09.007 PDF

2009. Keller, G., S. C. Khosla, R. Sharma, A. Khosla, S. Bajpai, and T. Adatte, 2009.  Early Danian Planktic Foraminifera from Cretaceous-Tertiary Intertrappean Beds at Jhilmili, Chhindwara District, Madhya Pradesh, India. J. Foram. Res., 39(1), 40-55. PDF

2009. Keller, G., T. Adatte, S. Bajpai, D. M. Mohabey, M. Widdowson, A. Khosla, R. Sharma, S. C. Khosla, B. Gertsch, D. Fleitmann, and A. Sahni, 2009. K-T transition in Deccan Traps of central India marks major marine Seaway across India. EPSL, 282, 10-23. PDF  doi:10.1016/j.epsl.2009.02.0162009.

2009. Keller, G., T. Adatte, Z. Berner, A, Pardo, and J. G. Lopez-Oliva, 2009. New evidence concerning the age and biotoc effects of the Chicxulub impact in NE Mexico. J. Geol. Society, London, 166, 393-411. doi:10.1144/0016-76492008-116. PDF

2009. Keller, G. and S. Abramovich, 2009. Lilliput effect in late Maastrichtian planktic foraminifera: Response to environmental stress. Paleogeogr., Paleoclimatol., Paleoecol., 284, 47-62. doi:10.1016/j.palaeo.2009.08.029 PDF

2009. Tantawy, A. A., G. Keller, and A. Pardo, 2009. Late Maastrichtian Volcanism in the Indian Ocean: Effects on Calcareous Nannofossils and Planktic Foraminiferea. Palaeogeogr., Palaeoclimatol., Palaeoecol., 284, 63-87. Doi: 10.1016/j.palaeo.2009.08.025 PDF

2009. Keller, G., A. Sahni, and S. Bajpai,  2009. Deccan volcanism, the KT mass extinction and dinosaurs. J. Biosci., 34, 709-728. PDF

2009. Pardo, A., G. Keller, T. Adatte, 2009. Extinciones y evolución de la vida; El ocaso de los dinosaurios; India: volcanismo masivo en el Transito K/T. Ciencia Y DeSarrollo, Nov. 2009, 31-56. PDF

2009. McCloskey, T. A., and G. Keller, 2009. 5000 year sedimentary record of hurricane strikes on the central coast of Belize. Quaternary International, 195, 53-68. doi:10.1016/j.quaint.2008.03.003 PDF

2010. Gertsch, B., G. Keller, T. Adatte, Z. Berner, A. A. Tantawy, A. M. El-Sabbagh, H. P. Mort, and D. Stüben, 2010. Middle and Late Cenomanian anoxic events in shallow shelf environments of western Morocco. Sedimentology, 2010, doi: 10.1111/j.1365-3091.2010.01151.x  PDF

2010. Malarkodi, N., G. Keller, P. J. Fayazudeen, and U. B. Mallikarjuna, 2010. Foraminifera from the Early Danian Intertrappean Beds in Rajahmundry Quarries, Andhra Pradesh. J. Geological Society of India, 75, 851-863. PDF

2010. Keller, G., 2010.  KT Mass Extinction: theories and controversies - extended version. Geoscientist Online, May 2010. PDF

2010. Keller, G., 2010. KT Mass Extinction: theories and controversies. Geoscientist Online, May 2010. PDF

2010. Gertsch, B., T. Adatte, G. Keller, A. A. Tantawy, Z. Berners, H. P. Mort, and D. Fleitmann, 2010. Middle and late Cenomanian oceanic anoxic events in shallow and deeper shelf environments of western Morocco. Sedimentology, 57(6), 1430-1462. PDF

2011. Abramovich, S., G. Keller, Z. Berner, M. Cymbalista, and C. Rak, 2011. Maastrichtian Planktic Foraminiferal Biostratigraphy and Paleoenvironment of Brazos River, Falls County, Texas, U.S.A.,
SEPM, Special Publication No. 100, 123-156. PDF

2011. Adatte, T., G. Keller and G. Baum, 2011.  Age and Origin of the Chicxulub Impact and Sandstone Complex, Brazos River, Texas: Evidence from Lithostratigraphy and Sedimentilogy. SEPM, Special Publication No. 100, 43-80. PDF

2011. El-Sabbagh, A., A. A. Tantawy, G. Keller, H. Khozyem, J. Spangenberg, T. Adatte, and B. Gertsch, 2011. Stratigraphy of the Cenomanian-Turonian Oceanic Anoxic Event OAE2 in shallow shelf sequences of NE Egypt. Cretaceous Research, 1-18. PDF

2011. Gertsch, B., G. Keller, T. Adatte, R. Garg, V. Prasad, Z. Berner, and D. Fleitmann, 2011. Environmental effects of Deccan volcanism across the Cretaceous-Tertiary transition in Meghalaya, India. Earth and Planetary Science Letters, 310, 272-285. PDF

2011. Keller, G., 2011. The Cretaceous-Tertiary Mass Extinction: Theories and Controversies. SEPM, Special Publication No. 100, 7-22. PDF

2011. Keller, G., 2011. Cretaceous-Tertiary Mass Extinction in Marginal and Open Marine Environments: Texas, U.S.A., and Tunisia. SEPM, Special Publication No. 100, 197-226. PDF

2011. Keller, G., 2011. Defining the Cretaceous-Tertiary Boundary: A Practical Guide and Return to First Principles. SEPM, Special Publication No. 100, 23-42. PDF

2011. Keller, G., and T. Adatte, 2011.  Nature of the KTB Controversy. SEPM, Special Publication No. 100, 3-5. PDF

2011. Keller, G., P. K. Bhowmick, H. Upadhyay, A. Dave, A. N. Reddy, B. C. Jaiprakash, and T. Adatte, 2011.  Deccan Volcanism Linked to the Cretaceous-Tertiary Boundary Mass Extinction: New Evidence from ONGC Wells in the Krishna-Godavari Basin. J. Geol. Soc. of India, 78, 399-428. PDF

2011. Keller, G., S. Abramovich, T. Adatte, and Z. Berner, 2011. Biostratigraphy, Age of Chicxulub Impact, and Depositional Environment of the Brazos River KTB Sequences. SEPM, Special Publication No. 100, 81-122. PDF

2011. Munsel, D., Z. Berner, and D. Stüben, 2011. The Sandstone Complex in the Brazos Riverbed Section: Geochemical Contraints on Genesis and Depositional Conditions. SEPM, Special Publication No. 100, 281-295. PDF

2011. Gertsch, B., G. Keller, T. Adatte and D. Bartels, 2011. Trace-Element Geochemistry of Brazos Sections, Texas, U.S.A. SEPM, Special Publication No. 100, 251-279. PDF

2011. Gertsch, B., G. Keller, T. Adatte and D. Bartels, 2011. Platinum Group Element (PGE) Geochemistry of Brazos Sections, Texas, U.S.A. SEPM, Special Publication No. 100, 227-249. PDF

2012. Keller, G., T. Adatte, P. K. Bhowmick, H. Upadhyay, A. Dave, A. N. Reddy, and B. C. Jaiprakash, 2012. Nature and timing of extinctions in Cretaceous-Tertiary planktic forminifera preserved in Deccan intertrappean sediments of the Krishna-Godavari Basin, India. Earth and Planetary Science Lett., 211-221. PDF
 
2012. Keller, G., 2012. The Cretaceous-Tertiary Mass Extinction, Chicxulub Impact, and Deccan Volcanism. Earth and Life, International Year of Planet Earth, 759-793. PDF
 
2013. Gertsch, B., G. Keller, T. Adatte, and Z. Berner, 2013. The Cretaceous-Tertiary boundary (KTB) transition in NE Brazil. J. Geol. Soc. London, 170, 249-262.
 
2013. Khozyem, H., T. Adatte, J. E. Spangenberg, A. A. Tantawy, and G. Keller, 2013.  Palaeoenvironmental and climatic changes during the Palaeocene-Eocene Thermal Maximum (PETM) at the Wadi Nukhul Section, Sinai, Egypt. J. Geol. Soc. London, 170, 341-352.
 
2013. Keller, G., H. Khozyem, T. Adatte, N. Malarkodi, J. E. Spangenberg and W. Stinnesbeck, 2013.  Chicxulub impact spherules in the North Atlantic and Caribbean: age constraints and Cretaceous-Tertiary boundary hiatus. Geol. Mag., 1-23.
 
Books
Keller, G., W. Stinnesbeck, T. Adatte, N. MacLeod, and D. R. Lowe, 1994. Field Guide to Cretaceous-Tertiary boundary sections in Northeastern Mexico, Lunar and Planetary Institute, LPI Contribution No. 827, 110 p.

MacLeod, N., and G. Keller, 1996. Cretaceous-Tertiary Mass Extinctions,  (MacLeod, N., and Keller, G., eds.), W. W. Norton & Company, Inc., New York, 575 p.
 
Keller, G., Chicxulub: Field Guide to Cretaceous-Tertiary boundary sections in NE Mexico, Il Simposio Geoscientifico International, June 2008. University Nuevo Leon, Linares, Mexico.
 
Keller, G., and T. Adatte (eds), 2011.  The KT Mass Extinction and the Chicxulub Impact in Texas.  Society of Sedimentary Geology (SEPM) Special Publication 100.
 
Keller, G. , N. Malarkodi, N. Reddy, and B. C. Jaiprakash (eds), 2013.  Micropaleontology and Stratigraphy in India and Global Bioevents in Earth History. Geol. Soc. India, Special Publication.