Richard J. Twitchett

9.9k citations

99 papers · 7.8k indexed · 2 hit papers · h-index 45

Co-authors: Paul B. Wignall Michael J. Benton Thomas J. Algeo Kliti Grice Silvia Danise Cindy V. Looy William J. Foster Michael E. Böttcher
Topics: Paleontology and Stratigraphy of Fossils (74 papers)Geology and Paleoclimatology Research (39 papers)Marine Biology and Ecology Research (28 papers)
Cited by: Paleontology Geochemistry and Petrology Geology
Journals: Science Proceedings of the National Academy of Sciences Nature Communications
Partner nations: United Kingdom United States Australia

In The Last Decade

Richard J. Twitchett

99 papers receiving 7.5k citations

Hit Papers

align trajectories

What are hit papers?

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.

Oceanic Anoxia and the End Permian Mass Extinction

1996 956 citations Richard J. Twitchett et al. Science profile →
Photic Zone Euxinia During the Permian-Triassic Superanoxic Event

2005 663 citations Michael E. Böttcher, Richard J. Twitchett et al. Science profile →

Peers

Countries citing papers authored by Richard J. Twitchett

Since Specialization

Citations

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

Fields of papers citing papers by Richard J. Twitchett

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Richard J. Twitchett. 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 Richard J. Twitchett. The network helps show where Richard J. Twitchett may publish in the future.

Co-authorship network of co-authors of Richard J. Twitchett

This figure shows the co-authorship network connecting the top 25 collaborators of Richard J. Twitchett. A scholar is included among the top collaborators of Richard J. Twitchett 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 Richard J. Twitchett. Richard J. Twitchett 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

#	Work	Indexed citations
1	The evolution of bone-eating worm diversity in the Upper Cretaceous Chalk Group of the United Kingdom 2025 ·PLoS ONE ·(unknown),James D. Witts,Marc E. H. Jones,(unknown),(unknown),Paul R. Bown,Richard J. Twitchett	2
2	Global record of “ghost” nannofossils reveals plankton resilience to high CO ₂ and warming 2022 ·Science ·Sam M. Slater,Paul R. Bown,Richard J. Twitchett,Silvia Danise,Vivi Vajda	31
3	Bivalve body-size distribution through the Late Triassic mass extinction event 2022 ·Paleobiology ·(unknown),Richard J. Twitchett	6
4	Palaeoecology of the Hiraiso Formation (Miyagi Prefecture, Japan) and implications for the recovery following the end-Permian mass extinction 2022 ·PeerJ ·William J. Foster,(unknown),Arnaud Brayard,Anja B. Frank,Stephen E. Grasby,Richard J. Twitchett,Tatsuo Oji	3
5	Stratigraphic and environmental control on marine benthic community change through the early Toarcian extinction event (Iberian Range, Spain) 2019 ·Palaeogeography Palaeoclimatology Palaeoecology ·Silvia Danise,Marie-Émilie Clémence,Gregory D. Price,Daniel Murphy,Juan José Morales Gómez,Richard J. Twitchett	41
6	Salinity changes and anoxia resulting from enhanced run-off during the late Permian global warming and mass extinction event 2018 ·Climate of the past ·(unknown),Richard J. Twitchett,Wolfram M. Kürschner	24
7	USING MUSEUM COLLECTIONS TO STUDY BRACHIOPOD SIZE CHANGE ACROSS EXTINCTION BOUNDARIES - TAKING ADVANTAGE OF MASS DIGITISATION 2017 ·Abstracts with programs - Geological Society of America ·(unknown),Kenneth G. Johnson,(unknown),(unknown),Richard J. Twitchett	1
8	CITIZEN SCIENCE, PUBLIC ENGAGEMENT AND GEOCONSERVATION IN THE JURASSIC COAST WORLD HERITAGE SITE OF SOUTHERN ENGLAND 2017 ·Abstracts with programs - Geological Society of America ·Richard J. Twitchett,(unknown),(unknown),(unknown)	1
9	Subsequent biotic crises delayed marine recovery following the late Permian mass extinction event in northern Italy 2017 ·PLoS ONE ·William J. Foster,Silvia Danise,Gregory D. Price,Richard J. Twitchett	54
10	Ecological impact of the end-Cretaceous extinction on lamniform sharks 2017 ·PLoS ONE ·(unknown),Charlie J. Underwood,Zerina Johanson,Richard J. Twitchett	33
11	Environmental controls on Jurassic marine ecosystems during global warming 2015 ·Geology ·Silvia Danise,Richard J. Twitchett,Crispin T. S. Little	77
12	Environmental controls on the post-Permian recovery of benthic, tropical marine ecosystems in western Palaeotethys (Aggtelek Karst, Hungary) 2015 ·Palaeogeography Palaeoclimatology Palaeoecology ·William J. Foster,Silvia Danise,(unknown),Gregory D. Price,Kinga Hips,Richard J. Twitchett	43
13	Ecological succession of a Jurassic shallow-water ichthyosaur fall 2014 ·Nature Communications ·Silvia Danise,Richard J. Twitchett,(unknown)	29
14	The Impact of Global Warming and Anoxia on Marine Benthic Community Dynamics: an Example from the Toarcian (Early Jurassic) 2013 ·PLoS ONE ·Silvia Danise,Richard J. Twitchett,Crispin T. S. Little,Marie-Émilie Clémence	92
15	Isotopic evidence for long term warmth in the Mesozoic 2013 ·Scientific Reports ·Gregory D. Price,Richard J. Twitchett,James R. Wheeley,Giuseppe Buono	63
16	Terrestrial–marine teleconnections in the collapse and rebuilding of Early Triassic marine ecosystems 2011 ·Palaeogeography Palaeoclimatology Palaeoecology ·Thomas J. Algeo,Zhong‐Qiang Chen,Margaret L. Fraiser,Richard J. Twitchett	277
17	Controls on body size during the Late Permian mass extinction event 2010 ·Geobiology ·He Wang,Richard J. Twitchett,(unknown),G.R. Shi,(unknown),(unknown),Shibao Wu,(unknown)	52
18	Biogeochemically cycling of C, S, H across the P/Tr boundary in Spitsbergen 2009 ·Geochimica et Cosmochimica Acta Supplement ·(unknown),(unknown),Richard J. Twitchett,Roger E. Summons,L. E. Hays,Michael E. Böttcher	1
19	Permian–Triassic mass extinction and subsequent recovery: an update 2009 ·Australian Journal of Earth Sciences ·Zhong‐Qiang Chen,Richard J. Twitchett,Jinnan Tong	3
20	Trace fossils in the aftermath of mass extinction events 2004 ·Geological Society London Special Publications ·Richard J. Twitchett,Colin Barras	116

About Richard J. Twitchett

Richard J. Twitchett is a scholar working on Paleontology, Geology and Oceanography, having authored 99 papers that have together received 7.8k indexed citations. Recurring topics across this work include Paleontology and Stratigraphy of Fossils (74 papers), Geology and Paleoclimatology Research (39 papers) and Marine Biology and Ecology Research (28 papers). The work is most often cited by research in Paleontology (6.3k citations), Geochemistry and Petrology (2.0k citations) and Geology (983 citations). Richard J. Twitchett has collaborated with scholars based in United Kingdom, United States and Australia. Frequent co-authors include Paul B. Wignall, Michael J. Benton, Thomas J. Algeo, Kliti Grice, Silvia Danise, Cindy V. Looy, William J. Foster, Michael E. Böttcher, Henk Visscher and Margaret L. Fraiser. Their work appears in journals such as Science, Proceedings of the National Academy of Sciences and Nature Communications.

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.

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