The DOI matches its Crossref record.
Angiosperm Diversification and Paleolatitudinal Gradients in Cretaceous Floristic Diversity
Abstract
The latitudinally diachronous appearance of angiosperm pollen during the Cretaceous is well documented, but the subsequent diversification and accompanying significant changes in floristic dominance have not been assessed quantitatively for a wide range of paleolatitudes. Trend surfaces fitted to within-palynoflora diversity data from 1125 pollen and spore assemblages show that angiosperms first become floristically prominent in low paleolatitude areas (∼20°N to 20°S). Non-magnoliid dicotyledons show a similar but slightly delayed pattern of increase and are the principal component of angiosperm diversity from all areas sampled. Monocotyledons and magnoliid dicotyledons are significant primarily in low to middle paleolatitude palynofloras (∼50°N to 20°S) during the latest Cretaceous. As angiosperms become increasingly prevalent the importance of most non-angiosperm taxa either decreases or remains unchanged. The only apparent exception is a striking increase in gnetalean diversity concurrent with the initial angiosperm diversification at low paleolatitudes.
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
Moles, A. T., Ackerly, D. D., Webb, C. O., Tweddle, J. C., Dickie, J. B., & Westoby, M. (2005) · Science · doi:10.1126/science.1104863 · Cited by 668
Angiosperm diversification through time
Magallón, S., & Castillo, A. (2009) · American Journal of Botany · doi:10.3732/ajb.0800060 · Cited by 439
TAYLOR, L. L., LEAKE, J. R., QUIRK, J., HARDY, K., BANWART, S. A., & BEERLING, D. J. (2009) · Geobiology · doi:10.1111/j.1472-4669.2009.00194.x · Cited by 331
Molecular and fossil evidence on the origin of angiosperms
Doyle, J. A. (2012) · Annual Review of Earth and Planetary Sciences · doi:10.1146/annurev-earth-042711-105313 · Cited by 239
Fire and the spread of flowering plants in the Cretaceous
Bond, W. J., & Scott, A. C. (2010) · New Phytologist · doi:10.1111/j.1469-8137.2010.03418.x · Cited by 239
Metadata
- Authors
- Crane, P. R., & Lidgard, S.
- Venue
- Science
- Published
- 1989-11-03
- Volume
- 246
- Issue
- 4930
- Pages
- 675-678
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1985711302
- Cited by
- 341
- References
- 0
- FWCI
- 7.04
- 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: Angiosperm Diversification and Paleolatitudinal Gradients in Cretaceous Floristic Diversity. https://app.cochat.ai/papers/10.1126/science.246.4930.675
- The paper
- Crane, P. R., & Lidgard, S. (1989). Angiosperm Diversification and Paleolatitudinal Gradients in Cretaceous Floristic Diversity. Science. https://doi.org/10.1126/science.246.4930.675
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.
