The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
The Permo–Triassic extinction
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Sepkoski, J. J. (1984) · Paleobiology · doi:10.1017/s0094837300008186 · Cited by 773
Wignall, P. B., & Hallam, A. (1992) · Palaeogeography, Palaeoclimatology, Palaeoecology · doi:10.1016/0031-0182(92)90182-5 · Cited by 466
Tooth structure and phylogeny of the Upper Permian echinoid Miocidaris keyserlingi
Smith, A. B., & Hollingworth, N. T. J. (1990) · Proceedings of the Yorkshire Geological Society · doi:10.1144/pygs.48.1.47 · Cited by 53
Cited by
Has the Earth’s sixth mass extinction already arrived?
Barnosky, A. D., Matzke, N., Tomiya, S., Wogan, G. O. U., Swartz, B., Quental, T. B., Marshall, C., McGuire, J. L., Lindsey, E. L., Maguire, K. C., et al. (2011) · Nature · doi:10.1038/nature09678 · Cited by 4,400
The evolution of modern corals and their early history
Stanley, G. D. (2003) · Earth-Science Reviews · doi:10.1016/s0012-8252(02)00104-6 · Cited by 373
Abrupt and Gradual Extinction Among Late Permian Land Vertebrates in the Karoo Basin, South Africa
Ward, P. D., Botha, J., Buick, R., De Kock, M. O., Erwin, D. H., Garrison, G. H., Kirschvink, J. L., & Smith, R. (2005) · Science · doi:10.1126/science.1107068 · Cited by 332
Self-citationImplications of the late Palaeozoic oxygen pulse for physiology and evolution
Graham, J. B., Aguilar, N. M., Dudley, R., & Gans, C. (1995) · Nature · doi:10.1038/375117a0 · Cited by 325
Self, S., Widdowson, M., Thordarson, T., & Jay, A. E. (2006) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2006.05.041 · Cited by 287
Metadata
- Authors
- Erwin, D. H.
- Venue
- Nature
- Published
- 1994-01
- Volume
- 367
- Issue
- 6460
- Pages
- 231-236
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W1983335280
- Cited by
- 692
- References
- 3
- FWCI
- 20.09
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: The Permo–Triassic extinction. https://app.cochat.ai/papers/10.1038/367231a0
- The paper
- Erwin, D. H. (1994). The Permo–Triassic extinction. Nature. https://doi.org/10.1038/367231a0
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.