The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Comparative Earth History and Late Permian Mass Extinction
Open accessAbstract
The repeated association during the late Neoproterozoic Era of large carbon-isotopic excursions, continental glaciation, and stratigraphically anomalous carbonate precipitation provides a framework for interpreting the reprise of these conditions on the Late Permian Earth. A paleoceanographic model that was developed to explain these stratigraphically linked phenomena suggests that the overturn of anoxic deep oceans during the Late Permian introduced high concentrations of carbon dioxide into surficial environments. The predicted physiological and climatic consequences for marine and terrestrial organisms are in good accord with the observed timing and selectivity of Late Permian mass 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
Lowenstam, H. A., & Weiner, S. (1989) · doi:10.1093/oso/9780195049770.001.0001 · Cited by 2,090
KAUFMAN, A., & KNOLL, A. (1995) · Precambrian Research · doi:10.1016/0301-9268(94)00070-8 · Cited by 1,167
Self-citationVertical mixing and coral death in the Red Sea following the eruption of Mount Pinatubo
Genin, A., Lazar, B., & Brenner, S. (1995) · Nature · doi:10.1038/377507a0 · Cited by 313
Berry, W. B. N., & Wilde, P. (1978) · American Journal of Science · doi:10.2475/ajs.278.3.257 · Cited by 277
Cited by
A Neoproterozoic Snowball Earth
Hoffman, P. F., Kaufman, A. J., Halverson, G. P., & Schrag, D. P. (1998) · Science · doi:10.1126/science.281.5381.1342 · Cited by 2,693
The Evolution of Modern Eukaryotic Phytoplankton
Falkowski, P. G., Katz, M. E., Knoll, A. H., Quigg, A., Raven, J. A., Schofield, O., & Taylor, F. J. R. (2004) · Science · doi:10.1126/science.1095964 · Cited by 1,613
Self-citationThe snowball Earth hypothesis: testing the limits of global change
Hoffman, P. F., & Schrag, D. P. (2002) · Terra Nova · doi:10.1046/j.1365-3121.2002.00408.x · Cited by 1,585
Permo-Triassic Boundary Superanoxia and Stratified Superocean: Records from Lost Deep Sea
Isozaki, Y. (1997) · Science · doi:10.1126/science.276.5310.235 · Cited by 842
Mass extinctions and sea-level changes
Hallam, A. (1999) · Earth-Science Reviews · doi:10.1016/s0012-8252(99)00055-0 · Cited by 695
Metadata
- Authors
- Knoll, A. H., Bambach, R. K., Canfield, D. E., & Grotzinger, J. P.
- Venue
- Science
- Published
- 1996-07-26
- Volume
- 273
- Issue
- 5274
- Pages
- 452-457
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2042526900
- Cited by
- 646
- References
- 4
- FWCI
- 32.30
- Type
- journal article
- Language
- en
- Open access
- green
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: Comparative Earth History and Late Permian Mass Extinction. https://app.cochat.ai/papers/10.1126/science.273.5274.452
- The paper
- Knoll, A. H., Bambach, R. K., Canfield, D. E., & Grotzinger, J. P. (1996). Comparative Earth History and Late Permian Mass Extinction. Science. https://doi.org/10.1126/science.273.5274.452
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.