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Earth Science
Brazil
2026

D-Index & Metrics

Earth Science

D-Index
55
Citations
8251
World Ranking
2612
National Ranking
9

Research.com Recognitions

  • 2026 - Research.com Earth Science in Brazil Leader Award
  • 2025 - Research.com Earth Science in Brazil Leader Award
  • 2013 - Fellow, The World Academy of Sciences

Overview

Alexander W. A. Kellner is affiliated with the Federal University of Rio de Janeiro in Brazil. Their research primarily spans the fields of Earth and Planetary Sciences and Environmental Science, with a total of 103 and 56 publications in these areas respectively.

Their work delves deeply into various subfields including Paleontology, Nature and Landscape Conservation, Statistics, Probability and Uncertainty, Atmospheric Science, and Political Science and International Relations. The focus on Paleontology is particularly prominent, with 84 publications contributing to the understanding of ancient life and its contexts.

Main topics in their research include Paleontology and Evolutionary Biology, Ichthyology and Marine Biology, Evolution and Paleontology Studies, scientometrics and bibliometrics research, Paleontology and Stratigraphy of Fossils, Geology and Paleoclimatology Research, and Science and Science Education.

Frequent publication venues for Kellner's research are:

  • Anais da Academia Brasileira de Ciências
  • Scientific Reports
  • Cretaceous Research
  • PeerJ
  • Historical Biology

Kellner has co-authored extensively with several researchers, including:

  • Juliana Manso Sayão
  • Luiz Carlos Weinschütz
  • Renan Alfredo Machado Bantim
  • RODRIGO G. FIGUEIREDO
  • Arthur Souza Brum

Recent papers authored or co-authored by Kellner include the following:

  • "New reptile shows dinosaurs and pterosaurs evolved among diverse precursors," 2023, Nature
  • "A new unenlagiine (Theropoda, Dromaeosauridae) from the Upper Cretaceous of Brazil," 2021, Papers in Palaeontology
  • "Reassessment of Faxinalipterus minimus, a purported Triassic pterosaur from southern Brazil with the description of a new taxon," 2022, PeerJ
  • "The Annals of the Brazilian Academy of Sciences," 2022, Anais da Academia Brasileira de Ciências
  • "The first edentulous ceratosaur from South America," 2021, Scientific Reports

Alexander W. A. Kellner was recognized as a Fellow of The World Academy of Sciences in 2013, acknowledging their contributions within the scientific community.

Best Publications

  • Pterosaur phylogeny and comments on the evolutionary history of the group

    Alexander W. A. Kellner

  • A Unique Late Triassic Dinosauromorph Assemblage Reveals Dinosaur Ancestral Anatomy and Diet

    Sergio Furtado Cabreira;Alexander Wilhelm Armin Kellner;Sérgio Dias-da-Silva;Lúcio Roberto da Silva;Lúcio Roberto da Silva

  • Pterosaur diversity and faunal turnover in Cretaceous terrestrial ecosystems in China

    Xiaolin Wang;Alexander W. A. Kellner;Zhonghe Zhou;Diogenes de Almeida Campos

  • A new Cretaceous terrestrial ecosystem from Gondwana with the description of a new sauropod dinosaur

    Jorge O. Calvo;Juan D. Porfiri;Bernardo J. González-Riga;Bernardo J. González-Riga;Alexander W. A. Kellner

  • ON A TITANOSAURID (DINOSAURIA, SAUROPODA) VERTEBRAL COLUMN FROM THE BAURU GROUP, LATE CRETACEOUS OF BRAZIL

    Diogenes de Almeida Campos;Alexander Wilhelm Armin Kellner;Reinaldo J Bertini;Rodrigo Miloni Santucci

  • A NEW SAUROPOD DINOSAUR (TITANOSAURIA) FROM THE LATE CRETACEOUS OF BRAZIL

    Alexander W. A. Kellner;Sergio A. K. Azevedo

  • The largest flying reptile from Gondwana: a new specimen of Tropeognathus cf. T. mesembrinus Wellnhofer, 1987 (Pterodactyloidea, Anhangueridae) and other large pterosaurs from the Romualdo Formation, Lower Cretaceous, Brazil

    Alexander W. A. Kellner;Diogenes A. Campos;Juliana M. Sayão;Antônio A.F. Saraiva

  • The Function of the Cranial Crest and Jaws of a Unique Pterosaur from the Early Cretaceous of Brazil

    Alexander W. A. Kellner;Diogenes de Almeida Campos

  • Description of a Titanosaurid caudal series from the Bauru Group, Late Cretaceous of Brazil

    Alexander Wilhelm Armin Kellner;Diogenes de Almeida Campos;Marcelo N.F Trotta

  • An unusual long-tailed pterosaur with elongated neck from western Liaoning of China

    Xiaolin Wang;Alexander W.A. Kellner;Shunxing Jiang;Xi Meng

  • Cranial remains of Quetzalcoatlus (Pterosauria, Azhdarchidae) from Late Cretaceous sediments of Big Bend National Park, Texas

    Alexander W. A. Kellner;Wann Langston

  • The soft tissue of Jeholopterus (Pterosauria, Anurognathidae, Batrachognathinae) and the structure of the pterosaur wing membrane

    Alexander W. A. Kellner;Xiaolin Wang;Helmut Tischlinger;Diogenes de Almeida Campos

  • Controlled excavations in the Romualdo Member of the Santana Formation (Early Cretaceous, Araripe Basin, northeastern Brazil): stratigraphic, palaeoenvironmental and palaeoecological implications

    Emmanuel Fara;Antônio Á.F. Saraiva;Diógenes de Almeida Campos;João K.R. Moreira

  • New information on the Tapejaridae (Pterosauria, Pterodactyloidea) and discussion of the relationships of this clade

    Alexander Wilhelm Armin Kellner

  • A new edentate pterosaur of the lower cretaceous from the araripe basin , northeast brazil

    A Kellner;A Willhelm

  • Discovery of a Rare Pterosaur Bone Bed in a Cretaceous Desert with Insights on Ontogeny and Behavior of Flying Reptiles

    Paulo C. Manzig;Alexander W. A. Kellner;Luiz C. Weinschütz;Carlos E. Fragoso

  • Panorama of the flying reptiles study in Brazil and South America

    D De Almeida Campos;A. W Armin Kellner

  • First EarlyCretaceous theropod dinosaur from Brazil with comments onSpinosauridae

    Alexander W. A. Kellner;Diogenes de A. Campos

  • A new early dinosaur (Sauropodomorpha) from the Caturrita Formation (Late Triassic), Paran Basin, Brazil

    Luciano A. Leal;Sergio A. K. Azevedo;Alexander W. A. Kellner;Átila A. S. Da Rosa

  • Fossilized theropod soft tissue

    Alexander W. A. Kellner;Alexander W. A. Kellner

  • An Early Cretaceous pterosaur with an unusual mandibular crest from China and a potential novel feeding strategy

    Xiaolin Wang;Taissa Rodrigues;Shunxing Jiang;Xin Cheng

Frequent Co-Authors

Jorge O. Calvo
Jorge O. Calvo National University of Comahue
Zhonghe Zhou
Zhonghe Zhou Chinese Academy of Sciences
Gareth J. Dyke
Gareth J. Dyke University of Debrecen
Max C. Langer
Max C. Langer Universidade de São Paulo
Haiyan Tong
Haiyan Tong Mahasarakham University
Eric Buffetaut
Eric Buffetaut École Normale Supérieure
Lilian Casatti
Lilian Casatti Sao Paulo State University
Luiz Drude de Lacerda
Luiz Drude de Lacerda Universidade Federal do Ceará
Mark A. Norell
Mark A. Norell American Museum of Natural History
Paulo Sérgio D'Andrea
Paulo Sérgio D'Andrea Oswaldo Cruz Foundation

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