At the dated check, the references listed below either did not resolve in
Crossref or DataCite, or carried a publisher retraction notice. Each one is shown with the
registry record that put it there.
The 99 references without a DOI — listed, not checked
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no DOI — not checkedG. Baur, 1893 .Notes on the classification of the Cryptodira., American Naturalist, 27 :672 –675 .
no DOI — not checkedT. Bell, 1825 .A monograph of the tortoises having a moveable sternum with remarks on their arrangement and affinities., Zoological Journal, 2 :299 –310 .
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no DOI — not checkedJ. W. Bickham, T. Lamp, P. Minx, and J. C. Patton .1996 .Molecular systematics of the genus Clemmys and the intergeneric relationships of emydid turtles., Herpetologica, 52 :89 –97 .
no DOI — not checkedHde Blainville, 1816 .Prodrome d'une nouvelle distribution systé matique du régne animal., Bulletin des Sciences, par la Société Philomatique de Paris, 1816 :113 –124 .
no DOI — not checkedC. L. Bonaparte, 1836b .Tavola analitica dei chelonii o testuggini., Giornale Arcadico di Scienze Lettere ed Arti, 69 :54 –64 .
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no DOI — not checkedD. G. Broadley, 1993 .A review of the Southern African species of Kinixys Bell (Reptilia: Testudinidae)., Annals of the Transvaal Museum, 36 :41 –52 .
no DOI — not checkedFde Broin, 1988 .Les tortues et le Gondwana. Examen des rapports entre le fractionnement du Gondwana et la dispersion géographique des tortues pleurodires à partir du Crétacé., Studia Palaeocheloniologica, 2 :103 –142 .
no DOI — not checkedA. Brongniart, 1800a .Essai d'une classification naturelle des reptiles, par le citoyen. Premiere Partie. Etablissement des ordres., Bulletin des Sciences, par la Société Philomatique de Paris, 2 :81 –82 .
no DOI — not checkedA. Brongniart, 1800b .Essai d'une classification naturelle des reptiles, par le citoyen. Seconde Partie. Formation et disposition des genres., Bulletin des Sciences, par la Société Philomatique de Paris, 2 :89 –91 .
no DOI — not checkedA. Brongniart, 1805 .Essai d'une classification naturelle des reptiles., Mémoires présentés a l'Institut des Sciences, Lettres et Arts, par Divers Savans, et lus dans ses Assemblées, Sciences Mathématiques et Physiques, 1 :587 –637 .
no DOI — not checkedH. N. Bryant, and P. D. Cantino .2002 .A review of criticisms of phylogenetic nomenclature: is taxonomic freedom the fundamental issue? Biological Reviews, 77 :39 –55 .
no DOI — not checkedL. M. Chiappe, 1996 .Late Cretaceous birds of southern South America: anatomy and systematics of Enantiornithes and Patagopteryx deferrariisi., Münchner Geowissenschaftliche Abhandlungen, Reihe A Geologie und Paläontologie, 30 :203 –244 .
no DOI — not checkedV. M. Chkhikvadze, 1971 .First find of a Tertiary turtle of the family Platysternidae., Paleontological Journal, 5 :546 –547 .
no DOI — not checkedE. D. Cope, 1864 .On the limits and relations of the Raniformes., Proceedings of the Academy of Natural Sciences of Philadelphia, 1864 :181 –183 .
no DOI — not checkedE. D. Cope, 1865 .Third contribution to the herpetology of tropical America., Proceedings of the Academy of Natural Sciences of Philadelphia, 1865 :185 –198 .
no DOI — not checkedE. D. Cope, 1868 .On the origin of genera., Proceedings of the Academy of Natural Sciences of Philadelphia, 1868 :242 –300 .
no DOI — not checkedE. D. Cope, 1871a .[Letter to Professor Lesley giving an account of a journey in the valley of the Smoky Hill River, in Kansas]., Proceedings of the American Philosophical Society, 12 :174 –176 .
no DOI — not checkedE. D. Cope, 1871c .On the homologies of some of the cranial bones of the Reptilia, and on the systematic arrangement of the class., Proceedings of the American Association for the Advancement of Science, 1 :194 –247 .
no DOI — not checkedC. R. Crumly, 1985 .A hypothesis for the relationships of land tortoise genera (Family Testudinidae)., Studia Palaeocheloniologica, 1 :115 –124 .
no DOI — not checkedC. R. Crumly, 1994 .Phylogenetic systematics of North American tortoises (genus Gopherus): evidence for their classification., Fish and Wildlife Research, 13 :7 –32 .
no DOI — not checkedI. G. Danilov, and V. B. Sukhanov .2001 .New data on lindholmemydid turtle Lindholmemys from the Late Cretaceous of Mongolia., Acta Palaeontologica Polonica, 46 :125 –131 .
no DOI — not checkedP. David, 1994 .Liste des reptiles actuels du monde. I., Chelonii. Dumérilia, 1 :7 –127 .
no DOI — not checkedM. L. Dollo, 1884 .Première note sur les chéloniens de Bernissart., Bulletin du Musée Royal d'Histoire Naturelle de Belgique, 3 :63 –84 .
no DOI — not checkedM. L. Dollo, 1886 .Première note sur les chéloniens du Bruxelliens (Éocène moyen) de la Belgique., Bulletin du Musée Royal d'Histoire Naturelle de Belgique, 4 :75 –96 .
no DOI — not checkedC. R. Feldman, and J. F. Parham .2001 .Molecular systematics of emydine turtles., Chelonian Conservation and Biology, 4 :194 –198 .
no DOI — not checkedL. Fitzinger, 1836 .Entwurf einer systematischen Anordnung der Schildkröten., Annales des Wiener Museums der Naturgeschichte, 1 :105 –128 .
no DOI — not checkedU. Fritz, M. Gaulke, and E. Lehr .1997 .Revision der südostasiatischen Dornschildkröten-Gattung Cyclemys Bell, 1834, mit Beschreibung einer neuen Art., Salamandra, 33 :183 –212 .
no DOI — not checkedM. S de la Fuente, and M. Iturralde-Vinent .2001 .A new pleurodiran turtle from the Jagua Formation (Oxfordian) of western Cuba., Journal of Paleontology, 75 :860 –869 .
no DOI — not checkedK. Fushitani, K. Higashiyama, E. N. Moriyama, K. Imai, and K. Hosokawa .1996 .The amino acid sequences of two αchains of hemoglobins from Komodo dragon Varanus komodoensis and phylogenetic relationships of amniotes., Molecular Biology and Evolution, 13 :1039 –1043 .
no DOI — not checkedE. S. Gaffney, 1975a .A phylogeny and classification of the higher categories of turtles., Bulletin of the American Museum of Natural History, 155 :389 –436 .
no DOI — not checkedE. S. Gaffney, 1996 .The postcranial morphology of Meiolania platyceps and a review of the Meiolaniidae., Bulletin of the American Museum of Natural History, 229 :1 –166 .
no DOI — not checkedM. Geoffroy-St.Hilaire, 1809a .Sur les tortues molles, nouveau genre sous le nom de Trionyx, et sur la formation des carapaces., Annales du Muséum d'Histoire Naturelle, 14 :1 –20 .
no DOI — not checkedM. Geoffroy-St.Hilaire, 1809b .Mémoire sur les tortues molles., Bulletin des Sciences, par la Société Philomatique de Paris, 1809 :363 –367 .
no DOI — not checkedJ. E. Gray, 1825 .A synopsis of the genera of reptiles and amphibia, with a description of some new species., Annals of Philosophy, 10 :193 –217 .
no DOI — not checkedJ. E. Gray, 1847 .Description of a new genus of Emydae., Proceedings of the Zoological Society of London, 15 :55 –56 .
no DOI — not checkedJ. E. Gray, 1864 .Description of a new species of Staurotypus (S. salvinii) from Guatemala., Proceedings of the Zoological Society of London, 1864 :127 –128 .
no DOI — not checkedW. Hennig, 1969 .Die Stammesgeschichte der Insekten., Kramer, Frankfurt am Main, 436 p (Not cited anymore).
no DOI — not checkedR. Hirayama, 1985 .Cladistic analysis of batagurine turtles., Studia Palaeocheloniologica, 1 :140 –157 .
no DOI — not checkedR. Hirayama, and T. Chitoku .1996 .Family Dermochelyidae (superfamily Chelonioidea) from the Upper Cretaceous of North Japan., Transactions and Proceedings of the Palaeontological Society of Japan, 184 :597 –622 .
no DOI — not checkedR. Hirayama, and Y. Hikida .1998 .Mesodermochelys (Testudines, Chelonioidea, Dermochelyidae) from the Late Cretaceous of Nakagawa-cho, Hokkaido, North Japan., Bulletin of the Nakagawa Museum of Natural History, 1 :69 –76 .
no DOI — not checkedR. Hirayama, D. B. Brinkman, and I. G. Danilov .2000 .Distribution and biogeography of non-marine Cretaceous turtles., Russian Journal of Herpetology, 7 :181 –198 .
no DOI — not checkedK. Hummel, 1929 .Die fossilen Weichschildkröten (Trionychia)., Geologische und Palaeontologische Abhandlungen, 16 :359 –487 .
no DOI — not checkedT. J. Hunt, 1958 .The ordinal name for tortoises, terrapins, and turtles., Herpetologica, 14 :148 –150 .
no DOI — not checkedJ. H. Hutchison, 1980 .Turtle stratigraphy of the Willwood Formation, Wyoming: preliminary results., University of Michigan Papers on Paleontology, 24 :115 –118 .
no DOI — not checkedJ. H. Hutchison, and D. M. Bramble .1981 .Homology of the plastral scales of the Kinosternidae and related turtles., Herpetologica, 37 :73 –85 .
no DOI — not checkedJ. B. Iverson, and R. A. Mittermeier .1980 .Dermatemydidae, river turtles., Catalogue of American Amphibians and Reptiles, 237 :1 –4 .
no DOI — not checkedJ. B. Iverson, P. Q. Spinks, H. B. Shaffer, W. P. McCord, and I. Das .2001 .Phylogenetic relationships among the Asian tortoises of the genus Indotestudo (Reptilia: Testudines: Testudinidae)., Hamadryad, 26 :272 –275 .
no DOI — not checkedF. Lapparent de Broin, 2000a .African chelonians from the Jurassic to the present: phases of development and preliminary catalogue of the fossil record., Palaeontologia Africana, 36 :43 –82 .
no DOI — not checkedF. Lapparent de Broin, 2000b .The oldest pre-Podocnemidid turtle (Chelonii, Pleurodira), from the early Cretaceous, Ceará state, Brasil, and its environment., Treballs del Museu Geologica de Barcelona, 9 :43 –95 .
no DOI — not checkedF. Lapparent de Broin, and M. S. de la Fuente .2001 .Oldest world Chelidae (Chelonii, Pleurodira), from the Cretaceous of Patagonia, Argentina., Earth and Planetary Sciences, 333 :463 –470 .
no DOI — not checkedLeidy, 1870 .[Proceedings of January 11, 1870]., Proceedings of the Academy of Natural Sciences of Philadelphia, 1870 :3 –5 .
no DOI — not checkedLeidy, 1871 .[Proceedings of November 8, 1870]., Proceedings of the Academy of Natural Sciences of Philadelphia, 1871 :102 –103 .
no DOI — not checkedW. A. Lindholm, 1929 .Revidiertes Verzeichnis der Gattungen der rezenten Schildkröten nebst Notizen zur Nomenklatur einiger Arten., Zoologischer Anzeiger, 81 :275 –272 .
no DOI — not checkedR. Lydekker, 1887 .Indian Tertiary and post-Tertiary vertebrates: eocene chelonia from the Salt Range., Palaeontologica Indica, 10 :59 –65 .
no DOI — not checkedS. C. Lynch, and J. F. Parham .2003 .The first report of hard-shelled sea turtles (Cheloniidae sensu lato) from the Miocene of California, including a new species (Euclastes hutchisoni) with unusually plesiomorphic characters., PaleoBios, 23 /3 :21 –35 .
no DOI — not checkedF. J C. Mayer, 1849 .System des Thier-Reiches oder Eintheilung der Thiere nach einem Pricipe entworfen., Verhandlungen des Naturhistorischen Vereins der Preussischen Rheinlande, 1849 :169 –210 .
no DOI — not checkedW. P. McCord, and S. A. Thomson .2002 .A new species of Chelodina (Reptilia: Pleurodira: Chelidae)., Journal of Herpetology, 36 :255 –267 .
no DOI — not checkedW. P. McCord, J. B. Iverson, P. Q. Spinks, and H. B. Shaffer .2000 .A new genus of geoemydid turtle from Asia., Hamadryad, 25 :20 –24 .
no DOI — not checkedP. A. Meylan, 1987 .The phylogenetic relationships of soft-shelled turtles (family Trionychidae)., Bulletin of the American Museum of Natural History, 186 :1 –101 .
no DOI — not checkedP. A. Meylan, 1988 .Peltochelys Dollo and the relationships among the genera of the Carettochelyidae (Testudines: Reptilia)., Herpetologica, 44 :440 –450 .
no DOI — not checkedP. A. Meylan, T. J. Moody, C. A. Walker, and S. D. Chapman .2000 .Sandownia harrisi, a highly derived trionychoid turtle (Testudines: Cryptodira) from the Early Cretaceous of the Isle of Wight., Journal of Vertebrate Paleontology, 20 :522 –532 .
no DOI — not checkedL. A. Nessov, 1977 .A new genus of pitted-shelled turtle from the Upper Cretaceous of Karakalpakia., Paleontological Journal, 11 :96 –107 .
no DOI — not checkedL. A. Nessov, and V. M. Chkhikvadze .1987 .New evidence on Paleocene turtle remains from south Kazakhstan., Bulletin of the Academy of Sciences of the Georgian SSR, 125 :177 –180 .
no DOI — not checkedF. Nopcsa, 1923 .Die Familien der Reptilien., Fortschritte der Geologie und Palaeontologie, 2 :1 –210 .
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no DOI — not checkedJ. F. Parham, and D. E. Fastovsky .1997 .The phylogeny of cheloniid sea turtles revisited., Chelonian Conservation and Biology, 2 :548 –554 .
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no DOI — not checkedR. C. Wood, 1985 .Evolution of the pelomedusid turtles., Studia Palaeocheloniologica, 1 :269 –282 .
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