Randall B. Irmis

5.6k total citations
93 papers, 3.8k citations indexed

About

Randall B. Irmis is a scholar working on Paleontology, Nature and Landscape Conservation and Atmospheric Science. According to data from OpenAlex, Randall B. Irmis has authored 93 papers receiving a total of 3.8k indexed citations (citations by other indexed papers that have themselves been cited), including 83 papers in Paleontology, 42 papers in Nature and Landscape Conservation and 13 papers in Atmospheric Science. Recurrent topics in Randall B. Irmis's work include Paleontology and Evolutionary Biology (72 papers), Evolution and Paleontology Studies (67 papers) and Ichthyology and Marine Biology (40 papers). Randall B. Irmis is often cited by papers focused on Paleontology and Evolutionary Biology (72 papers), Evolution and Paleontology Studies (67 papers) and Ichthyology and Marine Biology (40 papers). Randall B. Irmis collaborates with scholars based in United States, Argentina and United Kingdom. Randall B. Irmis's co-authors include Sterling J. Nesbitt, William G. Parker, Alan H. Turner, Nathan D. Smith, Roland Mundil, Jessica H. Whiteside, Mark A. Norell, Adriana Cecilia Mancuso, Jeffrey W. Martz and Keegan M. Melstrom and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Randall B. Irmis

89 papers receiving 3.7k citations

Peers

Randall B. Irmis

PALEO

NLC

GPC

GEOPH

Donald B. Brinkman Canada

Leonardo Salgado Argentina

Jennifer Botha South Africa

Xabier Pereda Suberbiola Spain

José Ignacio Canudo Spain

Nathalie Bardet France

Varavudh Suteethorn France

Ринчен Барсболд Mongolia

Lionel Cavin Switzerland

Zoltán Csiki‐Sava Romania

Donald B. Brinkman Canada

Randall B. Irmis

3.5k ×1.0

PALEO

2.3k ×1.1

NLC

846 ×1.3

GPC

156 ×0.6

GEOPH

210 ×1.2

Citations per year, relative to Randall B. Irmis Randall B. Irmis (= 1×) peers Donald B. Brinkman

Countries citing papers authored by Randall B. Irmis

Since Specialization

Citations

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

Fields of papers citing papers by Randall B. Irmis

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Randall B. Irmis. 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 Randall B. Irmis. The network helps show where Randall B. Irmis may publish in the future.

Co-authorship network of co-authors of Randall B. Irmis

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Sertich, Joseph J. W., et al.. (2025). New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late Cretaceous North America. Royal Society Open Science. 12(6). 250435–250435. 1 indexed citations

Melstrom, Keegan M., Kenneth D. Angielczyk, Kathleen A. Ritterbush, & Randall B. Irmis. (2025). For a while, crocodile: crocodylomorph resilience to mass extinctions. Palaeontology. 68(2).

Irmis, Randall B., et al.. (2025). Geochemical insights into Triassic plant fossils from western Gondwana (Argentina): interpreting diagenetic and δ13Corg variability. Palaeogeography Palaeoclimatology Palaeoecology. 681. 113372–113372. 1 indexed citations

Kelley, Neil P., Randall B. Irmis, Paula J. Noble, et al.. (2022). Grouping behavior in a Triassic marine apex predator. Current Biology. 32(24). 5398–5405.e3. 9 indexed citations

Parker, William G., Sterling J. Nesbitt, Randall B. Irmis, et al.. (2021). Osteology and relationships of Revueltosaurus callenderi (Archosauria: Suchia) from the Upper Triassic (Norian) Chinle Formation of Petrified Forest National Park, Arizona, United States. The Anatomical Record. 305(10). 2353–2414. 24 indexed citations

McGaughey, Gary, et al.. (2021). THE LAST TRIASSIC GIANT? A LATE RHAETIAN ICHTHYOSAUR FROM NEW YORK CANYON, NEVADA, USA. Abstracts with programs - Geological Society of America. 1 indexed citations

Gehrels, George E., Dominique Giesler, Paul E. Olsen, et al.. (2020). LA-ICPMS U–Pb geochronology of detrital zircon grains from the Coconino, Moenkopi, and Chinle formations in the Petrified Forest National Park (Arizona). SHILAP Revista de lepidopterología. 2(2). 257–282. 33 indexed citations

Schachner, Emma R., et al.. (2019). Osteology of the Late Triassic Bipedal Archosaur Poposaurus gracilis (Archosauria: Pseudosuchia) from Western North America. The Anatomical Record. 303(4). 874–917. 29 indexed citations

Gehrels, George E., Dominique Giesler, Paul E. Olsen, et al.. (2019). LA-ICPMS U-PB GEOCHRONOLOGY OF DETRITAL ZIRCON GRAINS FROM THE CHINLE FORMATION (COLORADO PLATEAU CORING PROJECT). Abstracts with programs - Geological Society of America. 1 indexed citations

10.

Matzke, Nicholas J. & Randall B. Irmis. (2018). Including autapomorphies is important for paleontological tip-dating with clocklike data, but not with non-clock data. PeerJ. 6. e4553–e4553. 31 indexed citations

11.

Irmis, Randall B., Paul E. Olsen, John W. Geissman, et al.. (2017). The Colorado Plateau Coring Project: A Continuous Cored Non-Marine Record of Early Mesozoic Environmental and Biotic Change. EGU General Assembly Conference Abstracts. 14923.

12.

Irmis, Randall B., Paul E. Olsen, William G. Parker, et al.. (2017). Understanding Late Triassic low latitude terrestrial ecosystems: new insights from the Colorado Plateau Coring Project (CPCP). AGUFM. 2017. 1 indexed citations

13.

Rasmussen, Cornelia, Roland Mundil, Randall B. Irmis, et al.. (2017). U-Pb Geochronology of non-marine Upper Triassic strata of the Colorado Plateau (western North America): implications for stratigraphic correlation and paleoenvironmental reconstruction. AGUFM. 2017. 1 indexed citations

14.

Pritchard, Adam C., Alan H. Turner, Randall B. Irmis, Sterling J. Nesbitt, & Nathan D. Smith. (2016). Extreme Modification of the Tetrapod Forelimb in a Triassic Diapsid Reptile. Current Biology. 26(20). 2779–2786. 24 indexed citations

15.

Langer, Max C., Sterling J. Nesbitt, Jonathas S. Bittencourt, & Randall B. Irmis. (2013). Non-dinosaurian dinosauromorpha. Journal of the Geological Society. 1 indexed citations

16.

Loewen, Mark A., Randall B. Irmis, Joseph J. W. Sertich, Philip J. Currie, & Scott D. Sampson. (2013). Tyrant Dinosaur Evolution Tracks the Rise and Fall of Late Cretaceous Oceans. PLoS ONE. 8(11). e79420–e79420. 122 indexed citations

17.

Whiteside, Jessica H., Sofie Lindström, Randall B. Irmis, et al.. (2012). Continental Ecosystem Instability During the Late Triassic Rise of Dinosaurs. AGU Fall Meeting Abstracts. 2012. 2 indexed citations

18.

Olsen, Paul E., Dennis V. Kent, Roland Mundil, et al.. (2009). THE COLORADO PLATEAU CORING PROJECT: THE TIMESCALE AND TEMPO OF BIOTIC CHANGE OF THE EARLY MESOZOIC. AGU Fall Meeting Abstracts. 2009. 2 indexed citations

19.

Mundil, Roland, et al.. (2008). Zircon U-Pb analyses by TIMS and LA-ICPMS on the same material. AGU Fall Meeting Abstracts. 2008. 5 indexed citations

20.

Fraser, Nicholas C., Randall B. Irmis, & David K. Elliott. (2005). A procolophonid (Parareptilia) from the Owl Rock Member, Chinle Formation of Utah, USA. Palaeontologia Electronica. 8(1). 16 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.

Explore authors with similar magnitude of impact