Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Trends, Rhythms, and Aberrations in Global Climate 65 Ma to Present
20017.9k citationsJames C. Zachos, Mark Pagani et al.Scienceprofile →
Rapid Acidification of the Ocean During the Paleocene-Eocene Thermal Maximum
2005871 citationsJames C. Zachos, Stephen A. Schellenberg et al.Scienceprofile →
Very large release of mostly volcanic carbon during the Palaeocene–Eocene Thermal Maximum
2017280 citationsAndy Ridgwell, Ellen Thomas et al.profile →
Author Peers
Peers are selected by citation overlap in the author's most active subfields.
citations ·
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This map shows the geographic impact of Ellen Thomas's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ellen Thomas with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ellen Thomas more than expected).
This network shows the impact of papers produced by Ellen Thomas. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ellen Thomas. The network helps show where Ellen Thomas may publish in the future.
Co-authorship network of co-authors of Ellen Thomas
This figure shows the co-authorship network connecting the top 25 collaborators of Ellen Thomas.
A scholar is included among the top collaborators of Ellen Thomas based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Ellen Thomas. Ellen Thomas is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Thomas, Ellen, et al.. (2023). Ein Oberdevon-/Unterkarbon-Profil im Velberter Sattel (nördliches Rheinisches Schiefergebirge) mit neuen Arten von (?)Sostronocrinus (Echinodermata). GoeScholar The Publication Server of the Georg-August-Universität Göttingen (Georg-August-Universität Göttingen).1 indexed citations
Varekamp, Johan C., et al.. (2018). Volcanic Mercury and CO 2 Venting Through East Lake, Newberry Volcano, OR. AGU Fall Meeting Abstracts. 2018.1 indexed citations
10.
Greene, Sarah E., et al.. (2014). Rethinking Controls on the Long-Term Cenozoic Carbonate Compensation Depth: Case Studies across Late Paleocene - Early Eocene Warming and Late Eocene - Early Oligocene Cooling. 2014 AGU Fall Meeting. 2014.1 indexed citations
11.
Thomas, Ellen, et al.. (2010). Evolución paleoambiental del tránsito Eoceno-Oligoceno en el Atlántico sur (Sondeo 1263) basada en foraminíferos bentónicos. Geogaceta. 3–6.4 indexed citations
12.
Haig, Jordahna, et al.. (2010). Reconstructing Mg/Ca ratios of seawater and implications for Mg/Ca based climate reconstructions. EGU General Assembly Conference Abstracts. 3050.1 indexed citations
13.
Thomas, Ellen. (2007). Deep Sea Environments Across the Cretaceous/Paleogene boundary in the eastern South Atlantic Ocean. Marine Micropaleontology. 64.15 indexed citations
14.
Zachos, James C., David A Hodell, Ellen Thomas, et al.. (2004). Extreme Acidification of the Deep Sea at the Paleocene-Eocene Boundary: New Constraints From Ocean Drilling Program Leg 208. AGU Fall Meeting Abstracts. 2004.1 indexed citations
15.
Thomas, Ellen. (2003). Benthic Foraminiferal Faunal Turnover Across the Cretaceous/Tertiary Boundary at Agost (Southeastern Spain): Paleoenvironmental Inferences. Marine Micropaleontology.11 indexed citations
16.
Zachos, James C., Mark Pagani, Lisa C. Sloan, Ellen Thomas, & Katharina Billups. (2001). Trends, Rhythms, and Aberrations in Global Climate 65 Ma to Present. Science. 292(5517). 686–693.7910 indexed citations breakdown →
17.
Adams, Jonathan M., Mark Maslin, & Ellen Thomas. (1999). Sudden climate transitions during the Quaternary. Progress in Physical Geography Earth and Environment. 23(1). 1–36.142 indexed citations
18.
Hall, M.A., et al.. (1996). Calculating surface water pCO(2) from foraminiferal organic delta C-13. UCL Discovery (University College London).
19.
Thomas, Ellen. (1988). Mass extinctions in the deep sea. NASA STI Repository (National Aeronautics and Space Administration). 673. 192.3 indexed citations
20.
Reiss, Zeev, et al.. (1977). Depth-relations of recent larger foraminifera in the Gulf of Aqaba-Elat. Utrecht University Repository (Utrecht University). 15.14 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.