Articles | Volume 35, issue 1
https://doi.org/10.5194/sd-35-127-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/sd-35-127-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Science report
| 
26 Jun 2026
Science report |
| 26 Jun 2026
| 26 Jun 2026
Initial results from a Trans-Amazon Drilling Project core from the Acre Basin of Brazil
Department of Earth and Atmospheric Sciences and School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
André O. Sawakuchi
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Anders Noren
Continental Scientific Drilling (CSD) Facility, University of Minnesota, Minneapolis, MN, USA
Paul A. Baker
Division of Earth and Climate Sciences, Duke University, Durham, NC, USA
Cleverson Silva
Department of Geology, Universidade Federal Fluminense, Niteroi, Brazil
Carlos Jaramillo
Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Panama City, Panama
Renato Paes de Almeida
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Liliane Janikian
Department of Ocean Sciences, Federal University of São Paulo, São Paulo, Brazil
Isaac Salém Bezerra
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Marcos Barbosa
Acqua Terra, São Paulo, Brazil
Dailson Bertassoli
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Rain Blankenship
Department of Earth Sciences, University of Southern California, Los Angeles, CA, USA
Cristiano M. Chiessi
School of Arts, Sciences, and Humanities, Universidade de São Paulo, São Paulo, Brazil
Sarah J. Feakins
Department of Earth Sciences, University of Southern California, Los Angeles, CA, USA
Maria da Glória Garcia
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Cécile Gautheron
Institute of Earth Sciences, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTTAR, Grenoble, France
Brian Grivna
Continental Scientific Drilling (CSD) Facility, University of Minnesota, Minneapolis, MN, USA
Gelvam Hartmann
Institute of Geosciences, Universidade Estadual de Campinas, Campinas, Brazil
Cindy Kunkel
GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
André Marconato
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Angela Martinez
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Sebastian G. Marulanda
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Carlos Eduardo M. Mazoca
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Francisco R. Negri
Laboratory of Paleontology, Universidade Federal do Acre, Cruzeiro do Sul, Brazil
Mauricio Parra
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Werner E. Piller
Institute for Earth Sciences, Universität Graz, Graz, Austria
Fabiano N. Pupim
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Victor Salgado
Department of Geology, Universidade Federal Fluminense, Niteroi, Brazil
Rachel T. So
Department of Earth Sciences, University of Southern California, Los Angeles, CA, USA
Priscila Emerich Souza
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Elena Stiles
Department of Biology and Burke Museum, University of Washington, Seattle, WA, USA
Caroline A. E. Strömberg
Department of Biology and Burke Museum, University of Washington, Seattle, WA, USA
Siu Mui Tsai
Center for Nuclear Energy in Agriculture, Universidade de São Paulo, São Paulo, Brazil
Ingo Wahnfried
Geosciences Department, Universidade Federal do Amazonas, Manaus, Brazil
Josh West
Department of Earth Sciences, University of Southern California, Los Angeles, CA, USA
Marc-Élie Adaimé
Department of Plant Biology, University of Illinois – Urbana-Champaign, Urbana, IL, USA
Jhon Afonso
Institute of Geosciences, Universidade Estadual de Campinas, Campinas, Brazil
Thomas Kenji Akabane
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Camila Eliza Althaus
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Carlos D'Apolito
Faculty of Biological and Environmental Sciences, Universidade Federal da Grande Dourados, Dourados, Brazil
Kleiton R. Araújo
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Roney da Silva de Azevedo Júnior
Geosciences Department, Universidade Federal do Amazonas, Manaus, Brazil
Jessica Barcellos
Department of Geology, Universidade Federal Fluminense, Niteroi, Brazil
Tacio Bicudo
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Giovanni Bogota
Faculty of Environment and Natural Resources, Universidad Distrital Francisco José de Caldas, Bogotá, Colombia
Bodo Bookhagen
Institute of Geosciences, Universität Potsdam, Potsdam, Germany
Caio Breda
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Alderlene Pimentel de Brito
Geosciences Department, Universidade Federal do Amazonas, Manaus, Brazil
Francy Carvajal
Ensenada Center for Scientific Research and Higher Education, Ensenada, Mexico
Daniel Antunes Coppi
Institute of Geosciences, Universidade Estadual de Campinas, Campinas, Brazil
Carolina Barbosa Leite da Cruz
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Felipe Torres Figueiredo
Department of Geology, Federal University of Sergipe, São Cristóvão, Brazil
Kate Freeman
Department of Geosciences, Pennsylvania State University, University Park, PA, USA
Pedro Victor Oliveira Gomes
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Martin Gross
Department of Geology and Paleontology, Universalmuseum Joanneum, Graz, Austria
Emma Hartke
Department of Geosciences, Pennsylvania State University, University Park, PA, USA
Katja Heeschen
GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
William Mozart Henrichs
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Leonardo Henrique
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Carina Hoorn
Institute for Biodiversity and Ecosystem Dynamics, Universiteit van Amsterdam, Amsterdam, the Netherlands
Brian K. Horton
Department of Earth and Planetary Sciences, University of Texas at Austin, Austin, TX, USA
Andrés Díaz-Jamamillo
Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Panama City, Panama
Said Kamrani-Mehni
GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Fatima Leite
Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Panama City, Panama
Lin Li
Department of Earth, Environmental, and Geographic Sciences, University of North Carolina – Charlotte, Charlotte, NC, USA
Rodrigo Ferreira de Lucena
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Alastair Milne
Edinburgh Geological Society, Edinburgh, Scotland, UK
Thomás Miranda
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Marcelo Mota
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Diana Ochoa
Department of Geology, Universidad de Salamanca, Salamanca, Spain
Vinicius de Lima Passos
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Rafaela Maciel Lopes de Paula
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Elisa Piispa
Institute of Earth Sciences, University of Iceland, Reykjavik, Iceland
Angelo Plata Torres
Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Panama City, Panama
Department of Geological Sciences, Universidad de Caldas, Manizales, Colombia
Surangi W. Punyasena
Department of Plant Biology, University of Illinois – Urbana-Champaign, Urbana, IL, USA
Adriano Domingos dos Reis
Institute of Geosciences, University of Brasilia, Brasilia, Brazil
Catherine Rigsby
Department of Geological Sciences, East Carolina University, Greenville, NC, USA
Andrés F. Salazar Rios
Institute for Earth Sciences, Universität Graz, Graz, Austria
Fernanda Costa Gonçalves Rodrigues
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Raquel M. M. Romão
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Ingrid C. Romero
Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Panama City, Panama
Smithsonian National Museum of Natural History, Washington, D.C., USA
Henrique O. Sawakuchi
Department of Thematic Studies, Linköping University, Linköping, Sweden
Doug Schnurrenberger
Continental Scientific Drilling (CSD) Facility, University of Minnesota, Minneapolis, MN, USA
Kristina Brady Shannon
Continental Scientific Drilling (CSD) Facility, University of Minnesota, Minneapolis, MN, USA
Silane A. F. da Silva-Caminha
Center for Tropical Paleoecology and Archeology, Smithsonian Tropical Research Institute, Panama City, Panama
Faculty of Geosciences, Universidade Federal de Mato Grosso, Cuiabá, Brazil
Clauses Sousa
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Larissa Natsumi Tamura
Institute of Geosciences, Universidade de São Paulo, São Paulo, Brazil
Thomas Wiersberg
GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Helanlin Xiang
Institute for Biodiversity and Ecosystem Dynamics, Universiteit van Amsterdam, Amsterdam, the Netherlands
Belén Zamudio
Institute for Earth Sciences, Universität Graz, Graz, Austria
Latest update: 26 Jun 2026
Short summary
The Trans-Amazon Drilling Project seeks to reconstruct the origins of biodiversity in the world's largest and most diverse rain forest, and the roles of landscape changes driven by Andean uplift and global climate change in diversification. We provide a project overview and preliminary results from a drill core from the Acre Basin of western Brazil, which recovered an 860 m sequence that was deposited in a large river system and which will yield critical insights on evolutionary history.
The Trans-Amazon Drilling Project seeks to reconstruct the origins of biodiversity in the...
