The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Ten years in the library: new data confirm paleontological patterns
Abstract
A comparison is made between compilations of times of origination and extinction of fossil marine animal families published in 1982 and 1992. As a result of ten years of library research, half of the information in the compendia has changed: families have been added and deleted, low-resolution stratigraphic data have been improved, and intervals of origination and extinction have been altered. Despite these changes, apparent macroevolutionary patterns for the entire marine fauna have remained constant. Diversity curves compiled from the two data bases are very similar, with a goodness-of-fit of 99%; the principal difference is that the 1992 curve averages 13% higher than the older curve. Both numbers and percentages of origination and extinction also match well, with fits ranging from 83% to 95%. All major events of radiation and extinction are identical. Therefore, errors in large paleontological data bases and arbitrariness of included taxa are not necessarily impediments to the analysis of pattern in the fossil record, so long as the data are sufficiently numerous.
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
A factor analytic description of the Phanerozoic marine fossil record
Sepkoski, J. J. (1981) · Paleobiology · doi:10.1017/s0094837300003778 · Cited by 1,010
Self-citation
Cited by
Diversification and Extinction in the History of Life
Benton, M. J. (1995) · Science · doi:10.1126/science.7701342 · Cited by 654
Statistical analysis of iron geochemical data suggests limited late Proterozoic oxygenation
Sperling, E. A., Wolock, C. J., Morgan, A. S., Gill, B. C., Kunzmann, M., Halverson, G. P., Macdonald, F. A., Knoll, A. H., & Johnston, D. T. (2015) · Nature · doi:10.1038/nature14589 · Cited by 637
Global Marine Biodiversity Trends
Sala, E., & Knowlton, N. (2006) · Annual Review of Environment and Resources · doi:10.1146/annurev.energy.31.020105.100235 · Cited by 394
Oxygen, ecology, and the Cambrian radiation of animals
Sperling, E. A., Frieder, C. A., Raman, A. V., Girguis, P. R., Levin, L. A., & Knoll, A. H. (2013) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1312778110 · Cited by 367
Large–scale heterogeneity of the fossil record: implications for Phanerozoic biodiversity studies
Smith, A. B. (2001) · Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences · doi:10.1098/rstb.2000.0768 · Cited by 340
Metadata
- Authors
- Sepkoski, J. J.
- Venue
- Paleobiology
- Publisher
- Cambridge University Press (CUP)
- Published
- 1993
- Volume
- 19
- Issue
- 1
- Pages
- 43-51
- ISSN
- 0094-8373 (ISSN-L)
- 1938-5331
- OpenAlex
- W1901292640
- Cited by
- 379
- References
- 1
- FWCI
- 18.44
- 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: Ten years in the library: new data confirm paleontological patterns. https://app.cochat.ai/papers/10.1017/s0094837300012306
- The paper
- Sepkoski, J. J. (1993). Ten years in the library: new data confirm paleontological patterns. Paleobiology. https://doi.org/10.1017/s0094837300012306
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.