James C. Zachos

46.4k citations
204 papers · 30.6k indexed · 7 hit papers · h-index 83
Topics
Geology and Paleoclimatology Research (181 papers)Paleontology and Stratigraphy of Fossils (92 papers)Isotope Analysis in Ecology (68 papers)

In The Last Decade

James C. Zachos

200 papers receiving 29.1k citations

Hit Papers

Trends, Rhythms, and Aberrations in Global Climate 65 Ma ...1994202620042015200120082005200519942.5k5.0k7.5k

Peers

James C. Zachos
Comparison fields: 5 of 162
  • Atmospheric Science 21.8k
  • Paleontology 14.6k
  • Ecology 6.8k
  • Oceanography 6.5k
  • Geophysics 4.0k
Replace Ellen Thomas with:
Ellen Thomas United States
Andrew H. Knoll United States
R. Lawrence Edwards United States
Mark Pagani United States
Hai Cheng China
Zhisheng An China
Henk Brinkhuis Netherlands
David A Hodell United States
Nicholas J Shackleton United Kingdom
Melanie J. Leng United Kingdom
James C. Zachos relative to Ellen Thomas United States Ellen Thomas's profile →
Citations per field
00.5×1.5×2.1×
Ellen Thomas · 1×
Citations per year

Countries citing papers authored by James C. Zachos

Since Specialization
Citations

This map shows the geographic impact of James C. Zachos'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 James C. Zachos with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites James C. Zachos more than expected).

Fields of papers citing papers by James C. Zachos

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James C. Zachos. 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 James C. Zachos. The network helps show where James C. Zachos may publish in the future.

Co-authorship network of co-authors of James C. Zachos

This figure shows the co-authorship network connecting the top 25 collaborators of James C. Zachos. A scholar is included among the top collaborators of James C. Zachos 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 James C. Zachos. James C. Zachos is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
#WorkIndexed citations
1 0
2 4
3
Global warming in the pipelinebreakdown →
142
4 8
5 13
6 33
7 7
8 17
9 108
10 35
11 81
12
Anthropogenic carbon release rate unprecedented during past 66 million years
1
13
Large amplitude variations in carbon cycling and terrestrial weathering during the latest Paleocene and earliest Eocene
2
14
Ocean acidification in the early Eocene and Anthropocene
2
15
High Resolution Records of the Elmo Event from Shatsky Rise, IODP Sites 1209 &1211
2
16
Barium Cycling During the Paleocene-Eocene Thermal Maximum: Evidence From Ba/Ca in Foraminifera
1
17
Extreme Acidification of the Deep Sea at the Paleocene-Eocene Boundary: New Constraints From Ocean Drilling Program Leg 208
1
18
The end of the Early Eocene Climatic Optimum: Evidence for Concomitant Cooling of Southern Ocean Surface Waters and Global Deep Waters From Dinoflagellate Endemism.
3
19
Trends, Rhythms, and Aberrations in Global Climate 65 Ma to Presentbreakdown →
7910
20
The Cretaceous-Tertiary boundary marine extinction and global primary productivity collapse
1

About James C. Zachos

James C. Zachos is a scholar working on Paleontology, Atmospheric Science and Oceanography, having authored 204 papers that have together received 30.6k indexed citations. Recurring topics across this work include Geology and Paleoclimatology Research (181 papers), Paleontology and Stratigraphy of Fossils (92 papers) and Isotope Analysis in Ecology (68 papers). The work is most often cited by research in Paleontology (14.6k citations), Atmospheric Science (21.8k citations) and Earth-Surface Processes (3.8k citations). James C. Zachos has collaborated with scholars based in United States, United Kingdom and Netherlands. Frequent co-authors include Ellen Thomas, Mark Pagani, Katharina Billups, Lisa C. Sloan, Richard E. Zeebe, Gerald R. Dickens, Timothy J. Bralower, Steven M. Bohaty, Ursula Röhl and Thomas Westerhold. Their work appears in journals such as Nature, Science and Proceedings of the National Academy of Sciences.

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026