The DOI matches its Crossref record; 202 of the 205 references it cites were found in a registry or an index.
Phylogenetics, taxonomy, and historical biogeography of Alligatoroidea.
Abstract
Alligatoroidea, a stem-based group including living alligators and caimans and all taxa closer to them than to Crocodylus or Gavialis, includes seven living species and a large diversity of extinct taxa extending back to the Campanian (Late Cretaceous). Parsimony analysis of 164 discrete morphological characters supports several previous hypotheses based on morphology and molecules: Diplocynodon, from the European Tertiary, is a monophyletic alligatoroid lineage; Brachychampsa and Stangerochampsa are derived alligatoroid taxa but not demonstrably within the crown-group Alligatoridae; and, within the crown-group, caimans form a robust clade. However, this study indicates the paraphyly of “Allognathosuchus;” the alligatoroid affinities of Leidyosuchus canadensL but not of most other “Leidyosuchus;” the very distant relationship between Hylaeochampsa and any extant crocodylian lineage, including Alligatoroidea; and the fact that Diplocynodon must extend at least as far as the Campanian, even though the oldest well-known Diplocynodon are from the Eocene. This work supports a close relationship between Diplocynodon and Baryphracta deponiae from the Eocene of Germany; monophyly of Alligator and the caiman assemblage as currently applied in the literature; the caiman affinities of the bizarre nettosuchids and Purussaurus; and a closer relationship between Caiman latirostris and Melanosuchus niger than between C. latirostris and other Caiman. Phylogenetic taxonomic principles have be…
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
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?
In the citing paper
“The rampant size changes that occurred throughout crocodilian evolution in the fossil record [3], [6], [32] are testament to the importance of scale-mediated changes in the feeding biomechanics of these animals.”
From Insights into the Ecology and Evolutionary Success of Crocodilians Revealed through Bite-Force and Tooth-Pressure Experimentation (2012) · cites this paper as [32]
Citations
Cites
History, A. M. O. N. (2019) · American Museum Novitates · doi:10.1206/novi · Cited by 4,144
Geological Society of America Abstracts with Programs
Vleeschouwer, D. D., Silva, A. D., Boulvain, F., & Claeys, P. (2010) · Cited by 3,007
Bulletin of the Museum of Comparative Zoology
Zoology, M. O. C. (2019) · Bulletin of the Museum of Comparative Zoology · doi:10.3099/harv · Cited by 2,193
Memoirs of the Queensland museum.
Bennett, T. L. (1996) · Memoirs of the Queensland Museum - Nature · Cited by 1,621
Species Concepts and Speciation Analysis
Cracraft, J. L. (1983) · Springer eBooks · doi:10.1007/978-1-4615-6781-3_6 · Cited by 1,523
The Bulletin of the American Museum of Natural History
Gratacap, L. P. (1900) · Science · doi:10.1126/science.11.282.807 · Cited by 1,406
Tertiary oxygen isotope synthesis, sea level history, and continental margin erosion
Miller, K. G., Fairbanks, R. G., & Mountain, G. S. (1987) · Paleoceanography · doi:10.1029/pa002i001p00001 · Cited by 1,141
AMNIOTE PHYLOGENY AND THE IMPORTANCE OF FOSSILS
Gauthier, J., Kluge, A. G., & Rowe, T. (1988) · Cladistics · doi:10.1111/j.1096-0031.1988.tb00514.x · Cited by 1,039
京都大学アフリカ地域研究調査委員会, & 京都大学アフリカ地域研究センター (1981) · Medical Entomology and Zoology · Cited by 864
Splendid Isolation: The Curious History of South American Mammals
Simpson, G. G. (1980) · Medical Entomology and Zoology · Cited by 580
Research works printed but not linked: 175
- Ayarzagüena J., 1984, La Salle, 122, 123
- Baird D., 1979, Brimleyana, 2, 1
- Bartels W. S., 1980, University of Michigan Papers on Paleontology, 24, 73
- Bartels W. S., 1983, Herpetologica, 39, 359
- Bartels W. S., 1984, Journal of Paleontology, 58, 1347
- Bartels W. S., 1988, Journal of Vertebrate Paleontology, 8, 8A
- Berg D. E., 1966, Abhandlungen des Hessischen Landesamtes für Bodenforschung, 52, 1
- Berg D. E., 1970, Acta Geologica Hispanica, 5, 54
- Bocquetin J. C., 1984, Ameghiniana, 21, 3
- Bramble D. M., 1971, Geological Society of America Abstracts with Programs, 3, 86
- Brazaitis P., 1973, Zoologica, 59, 59
- Brinkmann W., 1992, Berliner Geowissenschaftliche Abhandlungen E, 5, 1
- Broin F. de, 1966, D, 262, 2326
- 10.1111/j.1095-8312.1997.tb00317.x · DOI
- Bryant L. J., 1989, University of California Publications in Geological Sciences, 134, 1
- Buffetaut E., 1975, Terre), 51, 1
- Buffetaut E., 1982, Mémoires de la Société Géologique de France, 60, 1
- Buffetaut E., 1985, Neues Jahrbuch fur Geologie und Paläontologie Monatschefte, 12, 707
- Buffetaut E., 1985, Bulletin de la Société Belge de Géologie, 94, 51
- Buffetaut E., 1977, Palaeontology, 20, 203
- Busbey A. B., 1989, Journal of Vertebrate Paleontology, 9, 15A
- Buscalioni A. D., 1997, Académie des Sciences de Paris. Sciences de la Terre et des Planètes, 325, 525
- Carpenter K., 1980, Journal of Paleontology, 54, 1213
- Case E. C., 1925, University of Michigan, 2, 93
- Chiappe L., 1988, Paula-Coutiana, 3, 49
- Clark J. M., 1986, Phylogenetic relationships of the crocodylomorph archosaurs
- Clark J. M., 1994, In the Shadow of the Dinosaurs, 84
- Clark J. M., 1992, American Museum Novitates, 3032, 1
- Colbert E. H., 1954, American Museum Novitates, 1688, 1
- Colbert E. H., 1946, Bulletin of the American Museum of Natural History, 86, 327
- 10.2307/2412663 · DOI
- Cope E. D., 1873, Geological and Geographic Survey of the Territories, 6, 545
- Cope E. D., 1875, Systematic catalogue of Vertebrata of the Eocene of New Mexico, collected in 1874. Report to the Engineer Department, U.S. Army, U.S
- Coulson, R. A. and Hernandez, T. 1964.Biochemistry of the alligator: a study of metabolism in slow motion138Baton Rouge: Louisiana State University Press.
- D'Erasmo G., 1931, Missione Scientifica della Reale Accademia Italiana a Cufra, 3, 257
- Efimov M. B., 1976, Trudy Somestnaya Sovetsko-Mongolskya Paleontologicheskaya Expeditsiya, 3, 105
- Efimov M. B., 1983, Paleontologicheskaya Expeditsiya, 24, 76
- Efimov M. B., 1988, Trudy Somestnaya Sovetsko-Mongolskya Paleontologicheskaya Expeditsiya, 36, 1
- Efimov M. B., 1993, Kaupia, 3, 23
- Erickson B. R., 1972, New Series, 2, 1
- Erickson B. R., 1976, Monographs of the Science Museum of Minnesota (Paleontology), 2, 1
- Erickson B. R., 1982, Journal of Paleontology, 56, 492
- Eriksson T., 1996, AutoDecay, version 2.9.5
- Estes R., 1975, Herpetologica, 31, 365
- Ferguson M. W. J., 1984, The Structure, Development and Evolution of Reptiles, Symposia of the Zoological Society of London 52, 223
- Ferguson M. W. J., 1985, Biology of the Reptilia, 14, 329
- Frey E., 1988, Stuttgarter Beiträge zur Naturkunde, Serie A, 424, 1
- Frey E., 1988, A, 426, 1
- Fürbringer M., 1876, Gegenbaur's Morphologisches Jahrbuch, 1, 636
- Gallagher W. B., 1993, The Mosasaur, 5, 75
- Gallagher W. B., 1986, The Mosasaur, 3, 1
- Gasparini Z., 1981, Ameghiniana, 18, 177
- Gasparini Z., 1996, Münchner Geowissenschaftliche Abhandlungen, 30, 159
- Gervais P., 1876, Journal de Zoologie, 5, 232
- Gilmore C. W., 1946, Journal of Paleontology, 20, 62
- Ginsburg L., 1997, Geo-diversitas, 19, 107
- Godinot M., 1978, Comptes Rendus de l'Académie des Sciences de Paris, Serie D, 287, 1273
- Gramann F., 1958, Notizblatt der Hessischen Landes-Amte Bodenforschung, 86, 77
- Groessens-Van Dyck M. C., 1979, Dortmunder Beitrage zur Landeskunde, 12, 79
- Groessens-Van Dyck M. C., 1986, Annales de la Societé Royal Zoologique de Belgique, 116, 55
- Groombridge B., 1987, Wildlife Management: Crocodiles and Alligators, 427
- Gunnell G. F., 1992, University of Michigan, 28, 247
- Higgins D. W., 1972, A review of Oligocene alligators from the Big Badlands of South Dakota
- Hoffstetter P., 1969, Biology of the Reptilia, 1, 201
- Hofmann A., 1885, Beiträge zur Paläontologie Österreich-Ungarns und des Orients, 5, 26
- Holman J. A., 1976, Athlon, 80
- Home G. S., 1990, The Geology of North America. Vol H: The Caribbean Region, Geological Society of America, 55
- Huang W., 1988, Vertebrata PalAsiatica, 26, 227
- Huene F. von., 1933, Sonder-Abdruck aus dem Centralblatt für Mineralogie und Paläontologie B, 11, 577
- Nikoloff I., 1963, Neues Jahrbuch für Geologie und Paläontologie Abhandlungen, 118, 266
- Iordansky N. N., 1973, Biology of the Reptilia, 4, 201
- 10.1111/j.1095-8312.1996.tb01441.x · DOI
- Joffe J., 1967, Palaeontology, 10, 629
- Kälin J. A., 1933, Zoologisches Jahrbucher, 57, 535
- Kälin J. A., 1936, Abhandlungen der Schweitzerische Paläontologische Geselschaft, 58, 1
- Kälin J. A., 1939, Abhandungen der Schweizerischen Palaeontologischen Gesellschaft, 62, 1
- Kälin J. A., 1955, Traité de Paléontologie, 5, 695
- King F. W., 1971, Zoologica, 57, 15
- Klembara J., 1991, Pa-leontographica, 215, 103
- Kuhn O., 1938, N.F., 39, 313
- Langston W., 1965, University of California Publications in Geological Sciences, 52, 1
- Langston W., 1973, Biology of the Reptilia, 4, 263
- Langston W., 1997, Vertebrate Paleontology in the Neotropics: The Miocene Fauna of La Venta, 113
- Lee M. S. Y., 1996, B, 263, 1103
- Li J., 1987, Vertebrata PalAsiatica, 7, 199
- Lillegraven J. A., 1976, Journal of Paleontology, 50, 437
- Liu G., 1993, Vertebrata PalAsiatica, 31, 61
- Lucas S. G., 1992, New Mexico Geological Society Guidebook, 43rd Field Conference: San Juan Basin IV, 257
- Ludwig R., 1877, Paleontographica Supplement, 3, 1
- Lydekker R., 1887, Decade 3, 4, 307
- Maccagno A. M., 1952, Rendiconti Accademia Nazionale dei XL ser. 4, 3, 73
- Macdonald J. R., 1982, Proceedings of the South Dakota Academy of Sciences, 61, 152
- Malone B., 1979, The systematics
- Matthew W. D., 1918, American Museum Journal, 18, 503
- McKenna M. C., 1987, Basin analysis and paleontology of the Paleocene and Eocene Goler Formation, El Paso Mountains, California. Pacific Section, 31
- Medem F., 1955, Fieldiana: Zoology, 37, 339
- Medem F., 1958, Fieldiana: Zoology, 39, 227
- 10.1002/mmnz.19600360106 · DOI
- Medem F., 1963, Físicas y Naturales, 12, 5
- Medina C. J., 1976, Breviora, 438, 1
- Mertens R., 1943, Senckenbergiana, 26, 252
- Michard J. G., 1990, Comptes Rendus de l'Academie des Sciences de Paris, ser. 2, 311, 365
- Mook C. C., 1921, Bulletin of the American Museum of Natural History, 44, 101
- Mook C. C., 1923, American Museum Novitates, 73, 1
- Mook C. C., 1923, Bulletin of the American Museum of Natural History, 48, 553
- Mook C. C., 1924, American Museum Novitates, 137, 1
- Mook C. C., 1924, American Museum Novitates, 117, 1
- Mook C. C., 1925, Bulletin of the American Museum of Natural History, 51, 319
- Mook C. C., 1933, American Museum Novitates, 678, 1
- Mook C. C., 1933, American Museum Novitates, 670, 1
- Mook C. C., 1942, American Museum Novitates, 1189, 1
- Mook C. C., 1946, American Museum Novitates, 1311, 295
- Mook C. C., 1960, American Museum Novitates, 1975, 1
- Mook C. C., 1961, American Museum Novitates, 2072, 1
- Mook C. C., 1940, American Museum Novitates, 1098, 1
- Nilsson T., 1944, Svenska Vetenskapsakademiens Handlingar 3 Ser., 21, 1
- Nopcsa F., 1924, Geologie und Paläontologie, 12, 378
- Nopcsa F., 1926, Neue Beobachtungen an Stornatosuchus. Centralblatt für Mineralogie, Geologie und Palaontologie B:212–215
- Norell M. A., 1988, Cladistic approaches to paleobiology as applied to the phylogeny of alligatorids
- Norell M. A., 1990, Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, 60, 115
- Owen R., 1874, Palaeontographical Society Monographs, 27, 1
- Parris D. C., 1997, Journal of Vertebrate Paleontology, 17, 69A
- Patterson B., 1931, Field Museum of Natural History Geological Series, 6, 223
- Patterson B., 1936, Herpetologica, 1, 43
- Paunovic M., 1992, Beitrage zur Paläontologie der Österreich, 17, 1
- Pictet F. J., 1857, Matériaux pour la Paléontologie Suisse, Ser. 1, 2, 1
- Pindell J. L., 1990, The Geology of North America, Vol. H: The Caribbean Region, Geological Society of America, 405
- Poglayen-Neuwall I., 1953, Anatomische Anzieger, 99, 257
- Pomel A., 1847, Bulletin de la Société Géologique de France, ser. 2, 4, 378
- Prasad G. V. R., 1996, Geological Society of India Memoir, 37, 337
- Preston R. E., 1979, Papers in Paleontology, 19, 1
- Price L. I., 1964, Anais da Academia Brasiliera de Ciencias, 36, 59
- 10.1146/annurev.ecolsys.23.1.449 · DOI
- Rana R. S., 1990, Current Science, 59, 49
- Rauhe M., 1990, Geologische Jahrbuch Hessen, 118, 53
- Rauhe M., 1995, Hallesches Jahrbuch für Geowissenschaften, 17, 65
- Rauhe M., 1995, Hallesches Jahrbuch für Geowissenschaften, 17, 81
- Repenning C. A., 1961, Geological Survey Professional Paper, 424, 235
- Rodrigues J. B., 1892, Vellosia, 2, 41
- Rovereto C., 1912, Anales de Museo Nacional de Buenos Aires ser. 3, 22, 339
- Rowe T., This volume. Alligator: Digital atlas of the skull. CD-ROM
- Rusconi C., 1934, Boletin Paleontologico de Buenos Aires, 4, 7
- Rusconi C., 1937, Boletin Paleontologico de Buenos Aires, 8, 1
- Scherer E., 1973, Mitteilungen der Bayerischen Staatsammlung für Paläontologie und historische Geologie, 13, 103
- Schmidt K. P., 1928, Field Museum of Natural History Zoological Series, 12, 205
- Schmidt K. P., 1938, Geological Series of the Field Museum of Natural History, 6, 315
- Schmidt K. P., 1941, Fieldiana: Geology, 8, 27
- Schwimmer D. R., 1998, The DinoFest Symposium, 52
- Seidlitz W. von., 1919, Jahrbuch der Königlich Preussischen Geologischen Landesanstalt, 38, 347
- Shi Y., 1984, Acta Herpetologica Sinica, 3, 21
- Simonetta A., 1956, Archivio Italiano di Anatomia e di Embriologia, 61, 335
- Simpson G. G., 1930, American Museum Novitates, 445, 1
- Simpson G. G., 1933, American Museum Novitates, 623, 1
- Simpson G. G., 1937, American Museum Novitates, 965, 1
- Stefano G. de, 1905, Bolletino della Societa Geologia Italiana, 24, 17
- Stromer E., 1925, Abhandlungen der Bayerischen Akademie der Wissenshaften Mathematisch-naturvissenschaftliche Abteilung, 30, 1
- Stromer E., 1933, N.F., 15, 1
- Sun, A., Li, J., Ye, X., Dong, Z. and Hou, L. 1992.The Chinese fossil reptiles and their kins260Beijing: Science Press.
- Swofford D. L., 1992, PAUP: Phylogenetic analysis using parsimony, ver. 3.1
- Thenius E., 1955, Anzeiger der mathematischen-naturwis-senschaftlichen Klasse der Österreichischen Akademie der Wissenschaften, 11, 185
- Vaillant L., 1872, Annales de la Société Géologique de France, 3, 1
- van Beneden E., 1882, Archives de Biologie, 3, 497
- Vignaud P., 1996, Ha), 322, 595
- Wassersug R. J., 1967, Herpetologica, 23, 30
- Wegner R. N., 1957, Wissenschaftliche Zeitschrift der Ernst Moritz Arnd-Universität, 7, 1
- Wei F., 1981, Vertebrata PalAsiatica, 19, 375
- Weitzel K., 1935, Notizblatt des Vereins für Erdkunde und der hessischen geologischen Landesanstalt zu Darmstadt, 16, 40
- Wermuth H., 1953, Mitteilungen der Zoologisches Museum Berlin, 29, 376
- West R. M., 1978, Polarforschung, 48, 103
- Wettstein O., 1937, Handbuch der Zoologie 7(1,3), 237
- Willis P. M. A., 1991, Records of the South Australian Museum, 25, 39
- Willis P. M. A., 1993, Kaupia, 3, 27
- Wu X. C., 1996, Palaeontology, 39, 351
- Xu Q., 1984, Vertebrata PalAsiatica, 22, 49
- Young C. C., 1964, Vertebrata PalAsiatica, 8, 189
Cited by
Sorted by citations
Items 301–344 of 344
Victoria, M., Blanco, F., Cassini, G. H., & Bona, P. (2014) · Cited by 1
Novos registros fósseis das bacias do Iguatu, eocretáceo, Estado do Ceará
Fortier, D. (2008) · Americanae (AECID Library) · Cited by 1
Adams, A. J., Brochu, C. A., Adrain, J. M., & Sipla, J. S. (2016) · doi:10.17077/etd.i4rzkdgo · Cited by 1
Self-citationRistevski, J. (2019) · Springer eBooks · doi:10.1007/978-3-319-47829-6_955-1 · Cited by 1
Ristevski, J. (2022) · Springer eBooks · doi:10.1007/978-3-319-55065-7_955 · Cited by 1
Lucas, P. W. (2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.012
The basic structure of the mammalian mouth
Lucas, P. W. (2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.004
Jenkins, L. E. (2015) · SUNY Digital Repository Support (State University of New York System)
How to get excited about teeth
Lucas, P. W. (2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.003
Mechanical properties and their measurement: material properties made easy
Lucas, P. W. (2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.010
Properties of teeth and potential foods
Lucas, P. W. (2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.011
Lucas, P. W. (2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.002
(2021) · Elsevier eBooks · doi:10.1016/b978-0-12-821801-3.00021-2
Lucas, P. W. (2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.007
Lucas, P. W. (2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.008
(2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.013
Lucas, P. W. (2004) · Cambridge University Press eBooks · doi:10.1017/cbo9780511735011.001
(2019) · Elsevier eBooks · doi:10.1016/b978-0-12-410460-0.16001-2
(2011) · Elsevier eBooks · doi:10.1016/b978-0-12-375060-0.00017-6
Kingwill, C. (2023) · FHSU Scholars Repository (Fort Hays State University) · doi:10.58809/aatz8935
Massonne, T., & Augustin, F. J. (2025) · Fossil record · doi:10.3897/fr.28.150567
Giustina, F. D., Rocchi, R., & Vila, B. (2025) · Cretaceous Research · doi:10.1016/j.cretres.2025.106178
Traces of giant prehistoric crocodiles discovered in northern British Columbia
Plint, G., & Helm, C. (2022) · doi:10.64628/aam.nekvaa67g
The phylogenetic nomenclature of Caimaninae (Crocodylia: Alligatoroidea)
Cidade, G. M., Godoy, P. L., Amavet, P. S., Cossette, A. P., Solórzano, A., Bona, P., Angulo-Bedoya, M., Balaguera‐Reina, S. A., Rabi, M., Farias, I. P., et al. (2026) · Historical Biology · doi:10.1080/08912963.2026.2614968
Self-citationLivius, M. C. H., Witmer, L. M., Ryan, M. J., Maddin, H. C., & Mallon, J. C. (2026) · Journal of Vertebrate Paleontology · doi:10.1080/02724634.2026.2636589
Origine et évolution de la terrestrialité chez les crocodiliens altirostres
Pochat‐Cottilloux, Y. (2023) · doi:10.70675/4cf26fcfz8c91z42e4z994ezedf75624da1f
Barker, C. T., Tulloch, E., Young, M. T., Naish, D., Leung, L.-C., Rankin, K. E., & Gostling, N. J. (2026) · Zoological Journal of the Linnean Society · doi:10.1093/zoolinnean/zlag035
Blanco, M. V. F., & Bona, P. (2026) · Zoological Journal of the Linnean Society · doi:10.1093/zoolinnean/zlag114
Marquina, R., Montoya, P., Ruíz-Sánchez, F. J., & Crespo, V. D. (2026) · Fossil record · doi:10.3897/fr.29.189879
Basten, A., van der Bij, P., BERINGS, W., Boerman, S. A. C. M., & Vellekoop, J. (2026) · Geologica Belgica · doi:10.20341/gb.2026.003
Laflamme (2004) · doi:10.1666/0022-3360(2004)078
Self-citation- Self-citation
Metadata
- Authors
- Brochu, C. A.
- Affiliations
- The University of Texas at Austin (US)
- Corresponding author
- Brochu, Christopher A.
- Venue
- Journal of Vertebrate Paleontology
- Publisher
- Informa UK Limited
- Published
- 1999-06-14
- Volume
- 19
- Issue
- sup002
- Pages
- 9-100
- ISSN
- 0272-4634 (ISSN-L)
- 1937-2809
- OpenAlex
- W2063618699
- Cited by
- 345
- References
- 205
- Citations by year
- 2026: 11 · 2025: 15 · 2024: 13 · 2023: 13 · 2022: 19 · 2021: 9 · 2020: 13 · 2019: 25 · 2018: 13 · 2017: 17 · 2016: 18 · 2015: 15 · 2014: 21 · 2013: 14 · 2012: 9
- FWCI
- 6.91
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Vertebrate Paleontology (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Evolutionary Biology
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
- Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Amphibian and Reptile Biology
- Keywords
- Alligatoroidea, phylogenetic systematics, historical biogeography, Diplocynodon, Alligatoridae, caimans, alligators, Caiman latirostris, Melanosuchus niger, phylogenetic taxonomy, crocodilians
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