The DOI matches its Crossref record.
A global synthesis of the latest Ordovician Hirnantian brachiopod faunas
Abstract
A global review of new and existing data on the distribution of uppermost Ordovician (Hirnantian) brachiopods indicates the existence of at least three biogeographically distinct faunas. The typical Hirnantia fauna characterised subtropical and temperate latitudes and comprised a variety of ecological associations; the fauna reached its acme during the bohemicus and uniformis zones. Atypical Hirnantia faunas, developed marginal to Gondwana, are of low diversity and have few species in common with the typical Hirnantia fauna; their spatial distribution probably marked the margin of the polar ice sheets. The extinction of the Hirnantia fauna occurred in response to changes in sea level. Diverse and quite different faunas, including those from the Midcontinent of North America, Kolyma, the Oslo Region and probably Anticosti Island, occupied equatorial latitudes during the latest Ordovician. The Holorhynchus fauna, on evidence to date, predates the Hirnantia fauna.
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
Cited by
Mass extinctions and sea-level changes
Hallam, A. (1999) · Earth-Science Reviews · doi:10.1016/s0012-8252(99)00055-0 · Cited by 695
Ordovician and Silurian sea–water chemistry, sea level, and climate: A synopsis
Munnecke, A., Calner, M., Harper, D. A. T., & Servais, T. (2010) · Palaeogeography, Palaeoclimatology, Palaeoecology · doi:10.1016/j.palaeo.2010.08.001 · Cited by 375
Self-citationCascading trend of Early Paleozoic marine radiations paused by Late Ordovician extinctions
Rasmussen, C. M. Ø., Kröger, B., Nielsen, M. L., & Colmenar, J. (2019) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1821123116 · Cited by 226
Goldman, D., Sadler, P. M., Leslie, S. A., Melchin, M. J., Agterberg, F. P., & Gradstein, F. M. (2020) · Geologic Time Scale 2020 · doi:10.1016/b978-0-12-824360-2.00020-6 · Cited by 174
Do all mass extinctions represent an ecological crisis? Evidence from the Late Ordovician
Brenchley, P. J., Marshall, J. D., & Underwood, C. J. (2001) · Geological Journal · doi:10.1002/gj.880 · Cited by 123
Metadata
- Authors
- Jia-yu, R., & Harper, D. A. T.
- Venue
- Transactions of the Royal Society of Edinburgh: Earth Sciences
- Publisher
- Cambridge University Press (CUP)
- Published
- 1988
- Volume
- 79
- Issue
- 4
- Pages
- 383-402
- ISSN
- 0263-5933 (ISSN-L)
- 1473-7116
- OpenAlex
- W2335008281
- Cited by
- 195
- References
- 0
- FWCI
- 2.73
- 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: A global synthesis of the latest Ordovician Hirnantian brachiopod faunas. https://app.cochat.ai/papers/10.1017/s026359330001436x
- The paper
- Jia-yu, R., & Harper, D. A. T. (1988). A global synthesis of the latest Ordovician Hirnantian brachiopod faunas. Transactions of the Royal Society of Edinburgh: Earth Sciences. https://doi.org/10.1017/s026359330001436x
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.
