The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Limited range of interspecific vital effects in coccolith stable isotopic records during the Paleocene‐Eocene thermal maximum
Open accessAbstract
Small but significant differences exist among stable carbon and oxygen isotopic excursions measured in coccolith‐dominated bulk carbonate and planktic foraminifera during the Paleocene‐Eocene thermal maximum (PETM). One hypothesis suggests that the bulk carbonate isotopic record is compromised by changing nannofossil assemblages, since modern nannofossils show a large (5 permil) range of interspecific vital effects. New techniques are employed here to separate different size fractions of coccoliths from PETM sediments at ODP Site 690 for isotopic analysis, removing a major portion of the variation in nannofossil assemblages. Isotopic compositions of coarse and fine coccolith fractions dominated by coccoliths of genus Chiasmolithus and Toweius, respectively, differ by less than 0.5 permil for both oxygen and carbon. The near‐monogeneric Toweius record closely parallels the main trends in the bulk carbonate isotope records, including multiple steps in the negative carbon isotopic excursion, suggesting that the trends in the bulk carbonate record are not artifacts of changing species assemblages. Because both coccolithophorids and symbiont‐bearing foraminifera like Acarinina must inhabit the photic zone, it is unlikely that the 10 3 year lags in isotope event onset between coccoliths and Acarinina reflect true time‐transgressive invasion of isotopically depleted CO 2 into the water column. The small range of vital effects among Paleocene coccoliths is unlikely to result from diagenetic homogenization, and instead may reflect more similar carbon acquisition strategies of Paleocene coccolithophorid algae due to larger and/or more similar cell sizes and higher atmospheric carbon dioxide. The small range of vital effects suggests that bulk carbonate records are likely reliable for other early and pre‐Cenozoic sediments where foraminifera are often scarce.
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.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Non-equilibrium oxygen-18 effects in coccolithophores have varied drastically at geologic time scales.
“the observation that non-equilibrium oxygen-18 effects in coccolithophores have varied drastically at geologic time scales22,57 offers a cautionary tale regarding the long-term applicability of modern calibrations for biogenic carbonates.”
From Most Earth-surface calcites precipitate out of isotopic equilibrium (2019) · cites this paper as [57]
The Introduction (§1, ¶2) reports a nearly 5‰ range of oxygen-isotope vital effects in cultured modern coccoliths, while the Abstract reports less than 0.5‰ difference between the Paleocene coccolith fractions studied. The discussion (§4.4, ¶32) says these samples suggest a smaller range of vital effects in Paleocene species than in modern ones. That supports a substantial difference across geologic time, but the claim states broad, drastic variation as an established fact rather than the paper’s more limited inference from sampled species. (LLM, conf=0.83)
Experimental — accuracy not yet measured
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
Dickens, G. R., O’Neil, J. R., Rea, D. K., & Owen, R. M. (1995) · Paleoceanography · doi:10.1029/95pa02087 · Cited by 1,435
Kennett, J. P., & Stott, L. (1991) · Nature · doi:10.1038/353225a0 · Cited by 1,362
Release of methane from a volcanic basin as a mechanism for initial Eocene global warming
Svensen, H. H., Planke, S., Malthe‐Sørenssen, A., Jamtveit, B., Myklebust, R., Rasmussen, T., & Rey, S. (2004) · Nature · doi:10.1038/nature02566 · Cited by 1,048
Effect of seawater carbonate concentration on foraminiferal carbon and oxygen isotopes
Spero, H. J., Bijma, J., Lea, D. W., & Bemis, B. E. (1997) · Nature · doi:10.1038/37333 · Cited by 975
A Transient Rise in Tropical Sea Surface Temperature During the Paleocene-Eocene Thermal Maximum
Zachos, J. C., Wara, M. W., Bohaty, S. M., Delaney, M. L., Petrizzo, M. R., Brill, A., Bralower, T. J., & Premoli-Silva, I. (2003) · Science · doi:10.1126/science.1090110 · Cited by 704
Early Cenozoic decoupling of the global carbon and sulfur cycles
Kurtz, A. C., Kump, L. R., Arthur, M. A., Zachos, J. C., & Paytan, A. (2003) · Paleoceanography · doi:10.1029/2003pa000908 · Cited by 411
The Source and Fate of Massive Carbon Input During the Latest Paleocene Thermal Maximum
Katz, M. E., Pak, D. K., Dickens, G. R., & Miller, K. G. (1999) · Science · doi:10.1126/science.286.5444.1531 · Cited by 379
Mechanisms of Climate Warming at the End of the Paleocene
Bains, S., Corfield, R. M., & Norris, R. D. (1999) · Science · doi:10.1126/science.285.5428.724 · Cited by 353
Bralower, T. J. (2002) · Paleoceanography · doi:10.1029/2001pa000662 · Cited by 336
Orbital climate forcing of δ13C excursions in the late Paleocene–early Eocene (chrons C24n–C25n)
Cramer, B. S., Wright, J. D., Kent, D. V., & Aubry, M. (2003) · Paleoceanography · doi:10.1029/2003pa000909 · Cited by 333
Calculation of coccolith volume and it use in calibration of carbonate flux estimates
YOUNG, J. R., & Ziveri, P. (2000) · Deep Sea Research Part II Topical Studies in Oceanography · doi:10.1016/s0967-0645(00)00003-5 · Cited by 308
Particle fluxes to the interior of the Southern Ocean in the Western Pacific sector along 170°W
Honjo, S., François, R., Manganini, S. J., Dymond, J., & Collier, R. W. (2000) · Deep Sea Research Part II Topical Studies in Oceanography · doi:10.1016/s0967-0645(00)00077-1 · Cited by 226
Kent, D. V., Cramer, B. S., Lanci, L., Wang, D., Wright, J. D., & Rob Van Der Voo, A. (2003) · Earth and Planetary Science Letters · doi:10.1016/s0012-821x(03)00188-2 · Cited by 201
An alternative age model for the Paleocene–Eocene thermal maximum using extraterrestrial 3He
Farley, K. A., & Eltgroth, S. F. (2003) · Earth and Planetary Science Letters · doi:10.1016/s0012-821x(03)00017-7 · Cited by 191
Lineages in early paleogene calcareous nannoplankton
Romein, A. J. T. (1979) · Utrecht University Repository (Utrecht University) · Cited by 174
Stable isotope ‘vital effects’ in coccolith calcite
Ziveri, P., Stoll, H. M., Probert, I., Klaas, C., Geisen, M., Ganssen, G. M., & YOUNG, J. R. (2003) · Earth and Planetary Science Letters · doi:10.1016/s0012-821x(03)00101-8 · Cited by 150
Self-citationMethane oxidation during the late Palaeocene thermal maximum
Dickens, G. R. (2000) · ResearchOnline at James Cook University (James Cook University) · Cited by 142
Stable isotopic composition of coccoliths
Dudley, W. C., Blackwelder, P. L., Brand, L. E., & Duplessy, J. (1986) · Marine Micropaleontology · doi:10.1016/0377-8398(86)90021-6 · Cited by 122
Bard, É. (2001) · Paleoceanography · doi:10.1029/2000pa000537 · Cited by 116
Stoll, H. M., & Ziveri, P. (2002) · Marine Micropaleontology · doi:10.1016/s0377-8398(02)00040-3 · Cited by 91
Self-citationKelly, D. C. (2002) · Paleoceanography · doi:10.1029/2002pa000761 · Cited by 90
Stoll, H. M., & Bains, S. (2003) · Paleoceanography · doi:10.1029/2002pa000875 · Cited by 80
Self-citationStable isotopic fractionation among particles in Quaternary coccolith‐sized deep‐sea sediments
Paull, C. K., & Thierstein, H. R. (1987) · Paleoceanography · doi:10.1029/pa002i004p00423 · Cited by 61
Oxygen isotope content of coccoliths grown in culture
Dudley, W. C., & Goodney, D. E. (1979) · Deep Sea Research Part A Oceanographic Research Papers · doi:10.1016/0198-0149(79)90092-x · Cited by 53
High‐Resolution Stable Isotope Stratigraphy from Bulk Sediment
Shackleton, N. J., Hall, M. A., Pate, D., Meynadier, L., & Valet, P. (1993) · Paleoceanography · doi:10.1029/93pa00123 · Cited by 52
Minoletti, F., Gardin, S., Nicot, É., Renard, M., & Spezzaferri, S. (2001) · Bulletin de la Société Géologique de France · doi:10.2113/172.4.437 · Cited by 39
Flagged first, then by citations
Research works printed but not linked: 2
- 10.1130/0091-7613(2000)28<927:NCFTLP>2.0.CO;2 · DOI
- Shimizu N. andH. M.Stoll(2004) Coccolith Sr/Ca ratios by ion probe analysis paper presented atEleventh International M. Goldschmidt Conference Goldschmidt Geochem. Soc. Copenhagen Denmark.
Cited by
Sorted by citations
Environmental precursors to rapid light carbon injection at the Palaeocene/Eocene boundary
Sluijs, A., Brinkhuis, H., Stefan Schouten, A., Bohaty, S. M., John, C. M., Zachos, J. C., Reichart, G., Damsté, J. S. S., Crouch, E. M., & Dickens, G. R. (2007) · Nature · doi:10.1038/nature06400 · Cited by 372
Jones, T. D., Lunt, D. J., Schmidt, D. N., Ridgwell, A. J., Sluijs, A., Valdes, P. J., & Maslin, M. A. (2013) · Earth-Science Reviews · doi:10.1016/j.earscirev.2013.07.004 · Cited by 286
Most Earth-surface calcites precipitate out of isotopic equilibrium
Daëron, M., Drysdale, R. N., Peral, M., Huyghe, D., Blamart, D., Coplen, T. B., Lartaud, F., & Zanchetta, G. (2019) · Nature Communications · doi:10.1038/s41467-019-08336-5 · Cited by 236
Sluijs, A., Bowen, G. J., Brinkhuis, H., Lourens, L. J., & Thomas, E. (2018) · The Geological Society of London on behalf of The Micropalaeontological Society eBooks · doi:10.1144/tms002.15 · Cited by 216
Late Miocene threshold response of marine algae to carbon dioxide limitation
Bolton, C. T., & Stoll, H. M. (2013) · Nature · doi:10.1038/nature12448 · Cited by 181
Self-citationStefan Schouten, A., Woltering, M., Rijpstra, W. I. C., Sluijs, A., Brinkhuis, H., & Damsté, J. S. S. (2007) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2007.04.024 · Cited by 171
Gradual and sustained carbon dioxide release during Aptian Oceanic Anoxic Event 1a
Naafs, B. D. A., Jiménez, J. M. C., de Gea, G. A., Quijano, M. L., Schmidt, D. N., & Pancost, R. D. (2016) · Nature Geoscience · doi:10.1038/ngeo2627 · Cited by 151
Hermoso, M., Callonnec, L. L., Minoletti, F., Renard, M., & Hesselbo, S. P. (2008) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2008.10.013 · Cited by 147
Giusberti, L., Rio, D., Agnini, C., Backman, J., Fornaciari, E., Tateo, F., & Oddone, M. (2006) · Geological Society of America Bulletin · doi:10.1130/b25994.1 · Cited by 137
Ando, A., Kaiho, K., Kawahata, H., & Kakegawa, T. (2008) · Palaeogeography Palaeoclimatology Palaeoecology · doi:10.1016/j.palaeo.2007.12.007 · Cited by 130
Stap, L., Sluijs, A., Thomas, E., & Lourens, L. J. (2009) · Paleoceanography · doi:10.1029/2008pa001655 · Cited by 127
Stoll, H. M., Guitián, J., Hernández‐Almeida, I., Mejía, L. M., Phelps, S. R., Polissar, P. J., Rosenthal, Y., Zhang, H., & Ziveri, P. (2019) · Quaternary Science Reviews · doi:10.1016/j.quascirev.2019.01.012 · Cited by 115
Self-citationSluijs, A., & Dickens, G. R. (2012) · Global Biogeochemical Cycles · doi:10.1029/2011gb004224 · Cited by 113
Henderiks, J. (2008) · Marine Micropaleontology · doi:10.1016/j.marmicro.2008.01.005 · Cited by 109
Boscolo‐Galazzo, F., Thomas, E., Mark Pagani, I., Warren, C., Luciani, V., & Giusberti, L. (2014) · Paleoceanography · doi:10.1002/2014pa002670 · Cited by 101
Alegret, L., Ortíz, S., & Molina, E. (2009) · Palaeogeography Palaeoclimatology Palaeoecology · doi:10.1016/j.palaeo.2009.05.009 · Cited by 90
Kuhnt, W., Holbourn, A., Beil, S., Aquit, M., Krawczyk, T., Flögel, S., Chellaı̈, E. H., & Jabour, H. (2017) · Paleoceanography · doi:10.1002/2017pa003146 · Cited by 90
Jarvis, I., Trabucho‐Alexandre, J., Gröcke, D. R., Uličný, D., & Laurin, J. (2015) · The Depositional Record · doi:10.1002/dep2.6 · Cited by 90
Stassen, P., Thomas, E., & Speijer, R. P. (2012) · Paleoceanography · doi:10.1029/2012pa002323 · Cited by 88
THE PALEOCENE–EOCENE THERMAL MAXIMUM: NEW DATA ON MICROFOSSIL TURNOVER AT THE ZUMAIA SECTION, SPAIN
Alegret, L., Ortíz, S., Orue-Etxebarría, X., Bernaola, G., Baceta, J. I., Monechi, S., Apellaniz, E., & Pujalte, V. (2009) · Palaios · doi:10.2110/palo.2008.p08-057r · Cited by 86
Tipple, B. J., Mark Pagani, I., Krishnan, S., Dirghangi, S. S., Galeotti, S., Agnini, C., Giusberti, L., & Rio, D. (2011) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2011.08.045 · Cited by 82
Gibbs, S. J., Stoll, H. M., Bown, P. R., & Bralower, T. J. (2010) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2010.04.044 · Cited by 77
Self-citationMinoletti, F., Hermoso, M., & Gressier, V. (2008) · Nature Protocols · doi:10.1038/nprot.2008.200 · Cited by 76
Frieling, J., Peterse, F., Lunt, D. J., Bohaty, S. M., Damsté, J. S. S., Reichart, G., & Sluijs, A. (2019) · Paleoceanography and Paleoclimatology · doi:10.1029/2018pa003425 · Cited by 66
Raffi, I., Backman, J., Zachos, J. C., & Sluijs, A. (2008) · Marine Micropaleontology · doi:10.1016/j.marmicro.2008.12.005 · Cited by 72
Kelly, D. C., Nielsen, T. M. J., McCarren, H. K., Zachos, J. C., & Röhl, U. (2010) · Palaeogeography Palaeoclimatology Palaeoecology · doi:10.1016/j.palaeo.2010.04.027 · Cited by 67
Depth-habitat reorganization of planktonic foraminifera across the Albian/Cenomanian boundary
Ando, A., Huber, B. T., & MacLeod, K. G. (2010) · Paleobiology · doi:10.1666/09027.1 · Cited by 60
Bolton, C. T., Stoll, H. M., & Mendez‐Vicente, A. (2012) · Paleoceanography · doi:10.1029/2012pa002339 · Cited by 58
Self-citationThe Paleocene–Eocene Thermal Maximum at DSDP Site 277, Campbell Plateau, southern Pacific Ocean
Hollis, C. J., Hines, B. R., Littler, K., Villasante‐Marcos, V., Kulhanek, D. K., Strong, C. P., Zachos, J. C., Eggins, S. M., Northcote, L. C., & Phillips, A. (2015) · Climate of the past · doi:10.5194/cp-11-1009-2015 · Cited by 58
Chen, Z., Wang, X., Hu, J., Yang, S., Zhu, M., Dong, X., Tang, Z., Peng, P., & Ding, Z. (2014) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2014.10.027 · Cited by 54
Alegret, L., Ortíz, S., Arenillas, I., & Molina, E. (2010) · Geological Society of America Bulletin · doi:10.1130/b30055.1 · Cited by 54
Hermoso, M., Horner, T. J., Minoletti, F., & Rickaby, R. E. M. (2014) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2014.05.002 · Cited by 56
Tremblin, M., Hermoso, M., & Minoletti, F. (2016) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1608100113 · Cited by 49
Stoll, H. M., Nobumichi Shimizu, B., Arevalos, A., Matell, N., Banasiak, A., & Zeren, S. (2007) · Geochemistry Geophysics Geosystems · doi:10.1029/2006gc001546 · Cited by 44
Self-citationStructure and magnitude of the carbon isotope excursion during the Paleocene-Eocene thermal maximum
Zhang, Q., Wendler, I., Xu, X., Willems, H., & Ding, L. (2017) · Gondwana Research · doi:10.1016/j.gr.2017.02.016 · Cited by 44
Coccolith-Derived Isotopic Proxies in Palaeoceanography: Where Geologists Need Biologists
Hermoso, M. (2014) · Cryptogamie Algologie · doi:10.7872/crya.v35.iss4.2014.323 · Cited by 43
Reghellin, D., Coxall, H. K., Dickens, G. R., & Backman, J. (2015) · Paleoceanography · doi:10.1002/2015pa002825 · Cited by 35
Wilkes, E. B., Lee, R. B. Y., McClelland, H. L. O., Rickaby, R. E. M., & Pearson, A. (2018) · Organic Geochemistry · doi:10.1016/j.orggeochem.2018.02.006 · Cited by 33
Impact of dissolution on the sedimentary record of the Paleocene–Eocene thermal maximum
Bralower, T. J., Kelly, D. C., Gibbs, S. J., Farley, K. A., Eccles, L. R., Lindemann, T. L., & Smith, G. J. (2014) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2014.05.055 · Cited by 32
Zhang, Q., Ding, L., Kitajima, K., Valley, J. W., Zhang, B., Xu, X., Willems, H., & Klügel, A. (2019) · Global and Planetary Change · doi:10.1016/j.gloplacha.2019.103049 · Cited by 31
Luciani, V., D’Onofrio, R., Dickens, G. R., & Wade, B. S. (2017) · Paleoceanography · doi:10.1002/2017pa003138 · Cited by 27
Dedert, M., Stoll, H. M., Kars, S. M., YOUNG, J. R., Nobumichi Shimizu, B., Kroon, D., Lourens, L. J., & Ziveri, P. (2014) · Marine Micropaleontology · doi:10.1016/j.marmicro.2013.12.004 · Cited by 25
Self-citationZhang, H., Blanco‐Ameijeiras, S., Hopkinson, B. M., Bernasconi, S. M., Mejía, L. M., Liu, C., & Stoll, H. M. (2020) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2020.09.008 · Cited by 21
Self-citationBeltran, C., Rousselle, G., Backman, J., Wade, B. S., & Sicre, M. (2014) · Paleoceanography · doi:10.1002/2013pa002506 · Cited by 19
The dynamics of global change at the P aleocene‐ E ocene thermal maximum: A data‐model comparison
Bralower, T. J., Meißner, K. J., Alexander, K., & Thomas, D. J. (2014) · Geochemistry Geophysics Geosystems · doi:10.1002/2014gc005474 · Cited by 17
Zhang, H., Stoll, H. M., Bolton, C. T., Jin, X., & Liu, C. (2018) · Biogeosciences · doi:10.5194/bg-15-4759-2018 · Cited by 17
Self-citationHupp, B. N., Kelly, D. C., Zachos, J. C., & Bralower, T. J. (2019) · Geology · doi:10.1130/g46042.1 · Cited by 17
Tremolada, F., Bernardi, B. D., & Erba, E. (2008) · Marine Micropaleontology · doi:10.1016/j.marmicro.2008.01.010 · Cited by 17
Hupp, B. N., & Kelly, D. C. (2020) · Paleoceanography and Paleoclimatology · doi:10.1029/2020pa004018 · Cited by 13
Minoletti, F., Hermoso, M., Candelier, Y., & Probert, I. (2014) · Paleoceanography · doi:10.1002/2014pa002694 · Cited by 15
Renard, M., de RAFÉLIS, M., Emmanuel, L., Beltran, C., Moullade, M. R., & Tronchetti, G. (2007) · Carnets de géologie (Notebooks on geology) · doi:10.4267/2042/8454 · Cited by 6
Arreguín‐Rodríguez, G. J., & Alegret, L. (2015) · Estudios Geológicos · doi:10.3989/egeol.41758.330 · Cited by 3
Geological timeline of significant events on Earth
Joseph, A. (2023) · Elsevier eBooks · doi:10.1016/b978-0-323-95717-5.00020-7 · Cited by 3
Krammer, R. (2005) · State and University Library Bremen · Cited by 2
Evidence for Limited Atmospheric CO 2 Rise at the Miocene Climatic Optimum
Wubben, E., Frieling, J., Bats, Y. F., van Roij, L., de Haan, K., Reichart, G., Peterse, F., Sangiorgi, F., van der Meer, M. T. J., & Sluijs, A. (2026) · Paleoceanography and Paleoclimatology · doi:10.1029/2025pa005388 · Cited by 1
暁新世-始新世温暖化極大事件(PETM)研究の最前線 : 炭素同位体比層序学の貢献( 顕生代の環境擾乱イベントとその解析)
卓, 長. (2008) · Kanazawa University Repository for Academic Resources (DSpace) (Kanazawa University) · doi:10.20612/rog.23.24.0_43
Tangunan, D. N., Hall, I. R., Beaufort, L., Berke, M. A., Nederbragt, A. J., & Bown, P. R. (2025) · Climate of the past · doi:10.5194/cp-21-2541-2025
Contraindre la transition greenhouse-icehouse du Paléogène par la géochimie des coccolithes
Tremblin, M. (2018) · theses.fr (ABES) · doi:10.70675/c6900fa3zf792z4b7fzb3beze6ecc0e3849f
Metadata
- Authors
- Stoll, H. M.
- Affiliations
- Williams College (US)
- Corresponding author
- Stoll, Heather M.
- ORCID
- Stoll, Heather M.
- Venue
- Paleoceanography
- Publisher
- American Geophysical Union (AGU)
- Published
- 2005-02-05
- Volume
- 20
- Issue
- 1
- ISSN
- 0883-8305 (ISSN-L)
- 1944-9186
- OpenAlex
- W1592067263
- Semantic Scholar
- 450a788e22b672e6f360f39e6628b0a217d3c4df
- Cited by
- 59
- References
- 29
- Citations by year
- 2026: 1 · 2025: 1 · 2023: 1 · 2020: 2 · 2019: 5 · 2018: 4 · 2017: 3 · 2016: 2 · 2015: 4 · 2014: 9 · 2013: 2 · 2012: 3
- FWCI
- 4.00
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Paleoceanography (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
- Keywords
- Paleocene-Eocene Thermal Maximum, coccoliths, stable carbon isotopes, stable oxygen isotopes, nannofossil assemblages, coccolithophores, Acarinina, planktonic foraminifera, carbon isotope excursion
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