Ren Hirayama
- Paleontology top 1%
- Nature and Landscape Conservation top 1%
- Global and Planetary Change top 10%
- Ecology
- Atmospheric Science
- Co-authors
- Igor G. DanilovDonald B. BrinkmanHaiyan TongYuichirou YasukawaYasuhisa NakajimaHideki EndoShinji IsajiEugene S. Gaffney
- Topics
- Paleontology and Evolutionary Biology (38 papers)Turtle Biology and Conservation (26 papers)Evolution and Paleontology Studies (20 papers)
- Partner nations
- JapanUnited StatesRussia
In The Last Decade
Ren Hirayama
49 papers receiving 1.1k citations
Peers
Comparison fields: 5 of 55
- Paleontology 984
- Nature and Landscape Conservation 882
- Global and Planetary Change 256
- Ecology 71
- Atmospheric Science 50
Countries citing papers authored by Ren Hirayama
This map shows the geographic impact of Ren Hirayama'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 Ren Hirayama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ren Hirayama more than expected).
Fields of papers citing papers by Ren Hirayama
This network shows the impact of papers produced by Ren Hirayama. 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 Ren Hirayama. The network helps show where Ren Hirayama may publish in the future.
Co-authorship network of co-authors of Ren Hirayama
This figure shows the co-authorship network connecting the top 25 collaborators of Ren Hirayama. A scholar is included among the top collaborators of Ren Hirayama 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 Ren Hirayama. Ren Hirayama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 3 | |
| 2 | 1 | |
| 3 | 1 | |
| 4 | 2 | |
| 5 | 13 | |
| 6 | 12 | |
| 7 | 56 | |
| 8 | 11 | |
| 9 | 7 | |
| 10 | 23 | |
| 11 | 1 | |
| 12 | 7 | |
| 13 | 5 | |
| 14 | 13 | |
| 15 | 49 | |
| 16 | Cearachelys, a new side-necked turtle (Pelomedusoides, Bothremydidae) from the early Cretaceous of Brazil. American Museum novitates ; no. 3319 | 4 |
| 17 | 43 | |
| 18 | 134 | |
| 19 | 16 | |
| 20 | 2 |
About Ren Hirayama
Ren Hirayama is a scholar working on Paleontology, Nature and Landscape Conservation and Global and Planetary Change, having authored 52 papers that have together received 1.2k indexed citations. Recurring topics across this work include Paleontology and Evolutionary Biology (38 papers), Turtle Biology and Conservation (26 papers) and Evolution and Paleontology Studies (20 papers). The work is most often cited by research in Paleontology (984 citations), Nature and Landscape Conservation (882 citations) and Global and Planetary Change (256 citations). Ren Hirayama has collaborated with scholars based in Japan, United States and Russia. Frequent co-authors include Igor G. Danilov, Donald B. Brinkman, Haiyan Tong, Yuichirou Yasukawa, Yasuhisa Nakajima, Hideki Endo, Shinji Isaji, Eugene S. Gaffney, Diógenes de Almeida Campos and Tsutomu Hikida. Their work appears in journals such as Nature, Biological Journal of the Linnean Society and Journal of Vertebrate Paleontology.
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.