This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
Name from
Corresponding author (Name, Year)
Linnaeus, 1758
Other languages
scientific
Amphibia
German
Amphibien
Lebenszeitraum in Million Jahren (Ma)
Start age: 251 Ma - End age: 0 Ma
0
0.0117
1.806
5.332
13.65
23.03
37
55.8
65.5
85.8
99.6
130
144.5
161.2
171.6
189.6
203.6
237
251
Start age: 336 Ma - End age: 251 Ma
251.1
265.8
275.6
299
311.7
345.3
Reference- and Source indication, Literature
Automatic Links to external internet sources (Responsibility is with the operator)
A. Mann, 2019 - Diabloroter bolti, a short-bodied recumbirostran ‘microsaur’ from the Francis Creek Shale, Mazon Creek, Illinois - Zoological Journal of the Linnean Society (), 1-12 (journal article, English)
A. Mann, 2019 - Infernovenator steenae, a new serpentine recumbirostran from the ‘Mazon Creek’ Lagertätte further clarifies lysorophian origins - Zoological Journal of the Linnean Society (XX), 1-12 (journal article, English)
M. Szostakiwskyj, 2015 - Micro-CT study of Rhynchonkos stovalli (Lepospondyli, Recumbirostra), with description of two new genera - PLoS ONE (10), e0127- (journal article, English)
S. Glienke, 2015 - Two new species of the genus Batropetes (Tetrapoda, Lepospondyli) from the Central European Rotliegend (basal Permian) in Germany - Journal of Vertebrate Paleontology (35), 1-27 (journal article, English)
S. Glienke, 2013 - A taxonomic revision of Batropetes (Amphibia, Microsauria) from the Rotliegend (basal Permian) of Germany - Neues Jahrbuch für Geologie und Paläontologie (269), 73-96 (journal article, English)
A. K. Huttenlocker, 2013 - Cranial morphology of recumbirostrans (Lepospondyli) from the Permian of Kansas and Nebraska, and early morphological evolution inferred by micro-computed tomography - Journal of Vertebrate Paleontology (33), 540-552 (journal article, English)
A. Hminna, 2012 - On a moderately diverse continental ichnofauna from the Permian Ikakern Formation (Argana Basin, Western High Atlas, Morocco) - Journal of African Earth Sciences (68), 15-23 (journal article, English)
S. Glienke, 2012 - A new ‘‘microsaur’’ (Amphibia; Lepospondyli) from the Rotliegend of the Saar–Palatinate region (Carboniferous/Permian transition; West Germany) - Palaeontologische Zeitschrift (86), 297-311 (journal article, English)
H. C. Maddin, 2012 - The Braincase of Eocaecilia micropodia (Lissamphibia, Gymnophiona) and the Origin of Caecilians - PLoS One (7), e5074- (journal article, English)
A. C. Henrici, 2011 - An Ostodolepid ‘Microsaur’ (Lepospondyli) from the Lower Permian Tambach Formation of Central Germany - Journal of Vertebrate Paleontology (31), 997-1004 (journal article, English)
S. G. Lucas, 2010 - Amphibian Body Impressions from the Mississippian of Pennsylvania, USA - Ichnos (17), 172-176 (journal article, English)
J. S. Anderson, 2009 - Nannaroter mckinziei, a New Ostodolepid ‘Microsaur’ (Tetrapoda, Lepospondyli, Recumbirostra) from the Early Permian of Richards Spur (Ft. Sill), Oklahoma - Journal of Vertebrate Paleontology (29), 379-388 (journal article, English)
M. F. Ivakhnenko, 2008 - Podklass Parareptilia - Iskopaemye pozvonotchnye Rossii i sopredel'nykh stran: Iskopaemye reptilii i ptitsy, Tchast' 1 [Fossil vertebrates of Russia and adjacent countries: Fossil reptiles and birds, Part 1], GEOS, Moscow (), 49-85 (book/book chapter, Russian)
T. Ptaszyński, 2004 - Late Permian vertebrate tracks from the Tumlin Sandstone, Holy Cross Mountains, Poland - Acta Palaeontologica Polonica (49), 289-320 (journal article, English)
R. N. Melchor, 2004 - Small Amphibian and Reptile Footprints from the Permian Carapacha Basin, Argentina - Ichnos (11), 57-78 (journal article, English)
J. S. Anderson, 2003 - A new microsaur (Tetrapoda: Lepospondyli) from the Lower Permian of Richards Spur (Fort Sill), Oklahoma - Canadian Journal of Earth Sciences (40), 499-505 (journal article, English)
M. Ruta, 2003 - Early tetrapod relationships revisited - Biological Reviews (78), 251-345 (journal article, English)
J. S. Anderson, 2003 - Cranial anatomy of Coloraderpeton brilli, postcranial anatomy of Oestocephalus amphiuminus, and reconsideration of Ophiderpetontidae (Tetrapoda: Lepospondyli: Aistopoda) - Journal of Vertebrate Paleontology (23), 532-543 (journal article, English)
J. S. Anderson, 2003 - A New Aïstopod (Tetrapoda: Lepospondyli) from Mazon Creek, Illinois - Journal of Vertebrate Paleontology (23), 79-88 (journal article, English)
J. S. Anderson, 2002 - Revision of the Aïstopod Genus Phlegethontia (Tetrapoda: Lepospondyli) - Journal of Paleontology (76), 1029-1046 (journal article, English)
R. Soler-Gijón, 2001 - Fish and tetrapod trace fossils from the Upper Carboniferous of Puertollano, Spain - Palaeogeography, Palaeoclimatology, Palaeoecology (171), 1-28 (journal article, English)
J. Anderson, 2001 - The phylogenetic trunk: maximal inclusion of taxa with missing data in an analysis of the Lepospondyli (Vertebrata, Tetrapoda) - Systematic Biology (50), 170-193 (journal article, English)
M. Laurin, 2000 - Early tetrapod evolution - Trends in Ecology and Evolution (15), 118-123 (journal article, English)
I. V. Novikov, 2000 - Permian and Triassic anthracosaurs from Eastern Europe - The Age of Dinosaurs in Russia and Mongolia. Cambridge University Press, Cambridge (), 60-70 (book/book chapter, English)
C. Carlson, 1999 - Crossotelos, an Early Permian Nectridean Amphibian - Journal of Vertebrate Paleontology (19), 623-631 (journal article, English)
Y. M. Gubin, 1999 - A New Diplocaulid (Nectridea, Amphibia) from the Early Permian of Kansas (USA) - Paleontological Journal (33), 630-637 (journal article, English)
R. L. Carroll, 1998 - Handbuch der Palaoherpetologie / Encyclopedia of Paleoherpetology Teil 1 / Part 1 Lepospondyli: Microsauria, Nectridea, Lysorophia, Adelospondyli, Aistopoda, Acherontiscidae - (), 1-216 (book, English)
R. R. Reisz, 1996 - Archerpeton anthracos from the Joggins Formation of Nova Scotia: a microsaur, not a reptile - Canadian Journal of Earth Sciences (33), 703-709 (journal article, English)
A. C. Milner, 1996 - A juvenile diplocaulid nectridean amphibian from the Lower Permian of Texas and Oklahoma - Special Papers in Palaeontology (52), 129-138 (journal article, English)
J. M. Dutuit, 1994 - Rachitomes, Lépospondyles et Reptiles due Stephanien (Carbonifere superieur) du basin de Montceau-les-Mines (Massif central, France). In: Quand le Massif Central etait sout l'equateur: un ecosysteme Carbonifere a Montceau-les-Mines - Memoires de la section des Sciences (12), 249-266 (book/book chapter, French)
A. C. Milner, 1994 - The aïstopod amphibian from the Viséan of East Kirkton, West Lothian, Scotland - Transactions of the Royal Society of Edinburgh: Earth Sciences (84), 363-368 (journal article, English)
R. L. Carroll, 1991 - The Oldest Microsaur (Amphibia) - Palaeontology (65), 314-322 (journal article, English)
R. L. Carroll, 1991 - Batropetes from the Lower Permian of Europe - a Microsaur, not a Reptile - Journal of Vertebrate Paleontology (11), 229-242 (journal article, English)
R. L. Carroll, 1990 - A tiny microsaur from the lower Permian of Texas: size constraints in Palaeozoic tetrapods - Palaeontology (33), 893-909 (journal article, English)
J.-M. Dutuit, 1988 - Diplocaulus minimus n. sp. (Amphibia: Nectridea), Lépospondyle de la formation d’ Argana, dans l’Atlas occidental marocain - Comptes Rendus de l'Academie des Sciences Paris, Série II (307), 851-854 (journal article, French)
D. S. Berman, 1988 - Stegotretus agyrus a new genus and species of microsaur (amphibian) from the Permo-Pennsylvanian of New Mexico - Annals of Carnegie Museum (57), 293-323 (journal article, English)
R. L. Carroll, 1988 - - Vertebrate Paleontology and Evolution (), 1-698 (compendium, English)
R. W. Hook, 1986 - The Diamond Coal Mine of Linton, Ohio, and Its Pennsylvanian-Age Vertebrates - Journal of Vertebrate Paleontology (6), 174-190 (journal article, English)
D. W. Thayer, 1985 - New Pennsylvanian Lepospondyl Amphibians from the Swisshelm Mountains, Arizona - Journal of Paleontology (59), 684-700 (journal article, English)
P. E. Olsen, 1984 - A review of the reptile and amphibian assemblages from the Stormberg of southern Africa, with special emphasis on the footprints and the age of the Stormberg - Palaeontologia Africana (25), 87-110 (journal article, English)
C. Civet, 1982 - Etude d'un nouvel Amphibien Fosile du Basin Houiller de Montceau-les-Mines Scincosuarus spinosus nov. sp. - "La Physiophile" Societe d'etudes des sciences Naturelles et Historigues de Montceau-les-Mines (96), 73-79 (journal article, French)
C. F. Wellstead, 1982 - A Lower Carboniferous Aistopod Amphibian from Scotland - Palaeontology (25), 193-208 (journal article, English)
H. P. Schultze, 1981 - A new gymnarthrid microsaur from the Lower Permian of Kansas with a review of the tuditanomorph microsaurs (Amphibia) - Occ. Pap. Mus. Nat. Hist. Univ. Kan (91), 1-25 (journal article, English)
A. C. Milner, 1980 - A review of the Nectridea (Amphibia) - The Terrestrial Environment and the Origin of Land Vertebrates (), 377-405 (book chapter, English)
R. Lund, 1978 - Anatomy and Relationships of the Family Phlegethontiidae (Amphibia, Aïstopoda) - Annals of Carnegie Museum (47), 53-79 (journal article, English)
J. Zidek, 1978 - Cercariomorphus Cope, 1885, identified as the aïstopod amphibian Ophiderpeton - Journal of Paleontology (52), 561-564 (journal article, English)
R. L. Carroll, 1978 - The Order Microsauria - Memoirs of the American Philosophical Society (126), 1-211 (serial monograph, English)
P. Ellenberger, 1974 - Contribution à la classification des pistes de Vertébrés du Trias: les types du Stormberg d'Afrique du Sud (IIème partie: Le Stormberg superieur - I. Le biome de la zone B/1 ou niveau de Moyeni: ses biocénoses) [Contribution to the classification of the v - Palaeovertebrata (Mém. Ext.), 1-147 (serial monograph, French)
E. Daly, 1973 - A Lower Permian vertebrate fauna from southern Oklahoma - Journal of Paleontology (47), 562-589 (journal article, English)
E. C. Olson, 1972 - Diplocaulus parvus n. sp. (Amphibian: Nectridea) from the Chickasha Formation (Permian; Guadalupian) of Oklahoma - Journal of Paleontology (46), 656-659 (journal article, English)
P. Ellenberger, 1972 - Contribution à la classification des Pistes de Vertébrés du Trias: Les types du Stormberg d’Afrique du Sud (I) [Contribution to the classification of Triassic vertebrate footprints: the types from the Stormberg of South Africa (I)] - Palaeovertebrata (Mem. Ext.), 1-152 (serial monograph, French)
P. P. Vaughn, 1972 - More vertebrates including a new microsaur from the Upper Pennsylvanian of central Colorado - Los Angeles County Museum Contributions in Science (223), 1-30 (journal article, English)
R. L. Carroll, 1971 - A captorhinomorph reptile from the Lower Permian of Europe - Journal of Paleontology (45), 450-463 (journal article, English)
P. Ellenberger, 1970 - Les niveaux paléontologiques de première apparition des mammifères primoridaux en Afrique du Sud et leur ichnologie. Establissement de zones stratigraphiques detaillees dans le Stormberg du Lesotho (Afrique du Sud) (Trias Supérieur à Jurassique) [The pal - In: S. H. Haughton (ed.), Second Symposium on Gondwana Stratigraphy and Paleontology, International Union of Geological Sciences. Council for Scientific and Industrial Research, Pretoria (), 343-370 (journal article, French)
E. C. Olson, 1970 - New and little known genera and species of vertebrates from the Lower Permian of Oklahoma - Fieldiana: Geology (18), 359-434 (serial monograph, English)
A. L. Panchen, 1970 - Handbuch der Palaoherpetologie / Encyclopedia of Paleoherpetology Teil 5 / Part 5 Batrachosauria Teil A / Part A Anthracosauria - (), 1-84 (book, English)
R. L. Carroll, 1969 - A new family of Carboniferous amphibians - Palaeontology (12), - (journal article, English)
P. P. Vaughn, 1969 - Upper Pennsylvanian vertebrates from the Sangre de Cristo Formation of central Colorado - Los Angeles County Museum Contributions in Science (164), 1-28 (journal article, English)
H. J. McGinnis, 1967 - The Osteology of Phlegethontia, a Carboniferous and Permian Aïstopod Amphibian - University of California Publications in Geological Sciences (71), 1-46 (serial monograph, English)
M. C. Brough, 1967 - Studies on Early Tetrapods I: The Lower Carboniferous Microsaurs - Philosophical Transactions of the Royal Society of London B: Biological Sciences (252), 107-129 (journal article, English)
R. L. Carroll, 1966 - Microsaurs from the Westphalian B of Joggins, Nova Scotia - Proceedings of the Linnean Society of London (177), 63-97 (journal article, English)
D. Baird, 1964 - The aistopod amphibians surveyed - Breviora (206), 1-17 (journal article, English)
R. L. Carroll, 1964 - The earliest reptiles - Journal of the Linnean Society (45), 61-83 (journal article, English)
O. Kuhn, 1964 - Ungelöste Probleme der Stammesgeschichte der Amphibien und Reptilien [Unsolved problems of the phylogeny of amphibians and reptiles] - Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg (118/119), 293-325 (journal article, German)
J. R. Beerbower, 1963 - Morphology, paleoecology, and phylogeny of the Permo-Pennsylvania amphibian Diploceraspis - Bulletin of the Museum of Comparative Zoology (130), 31-108 (journal article, English)
E. C. Olson, 1962 - Permian vertebrates from Oklahoma and Texas. Part I.—Vertebrates from the Flowerpot Formation, Permian of Oklahoma - Oklahoma Geological Survey, Circular (59), 5-48 (serial monograph, English)
O. Kuhn, 1959 - Ein neuer Microsaurier aus dem deutschen Rotliegenden [A new microsaur from the German Rotliegenden] - Neues Jahrbuch für Geologie und Paläontologie Monatshefte (1959), 424-426 (journal article, German)
O. Kuhn, 1958 - - Die Fährten der vorzeitlichen Amphibien und Reptilien [The Tracks of Prehistoric Amphibians and Reptiles] (), 1-64 (book, English)
J. T. Gregory, 1956 - Revision of the Gymnarthridae - American Permian Microsaurs - Bulletin of the Peabody Museum of Natural History (10), 1-77 (serial monograph, English)
W. D. Turnbull, 1955 - A Recently Discovered Phlegethontia from Illinois - Fieldiana Zoology (37), 523-535 (journal article, English)
E. C. Olson, 1952 - Fauna of the upper Vale and Choza: 6. Diplocaulus - Fieldiana: Geology (10), 147-166 (journal article, English)
E. C. Olson, 1951 - Diplocaulus, a Study in Growth and Variation - Fieldiana: Geology (11), 57-154 (journal article, English)
J. T. Gregory, 1948 - A New Limbless Vertebrate from the Pennsylvanian of Mazon Creek, Illinois - American Journal of Science (246), 636-663 (journal article, English)
A. S. Romer, 1947 - Review of the Labyrinthodontia - Bulletin of the Museum of Comparative Zoology (99), 1-368 (journal article, English)
O. Kuhn, 1946 - Das System der fossilen und rezenten Amphibien und Reptilien [The system of fossil and recent amphibians and reptiles] - Bericht der Naturforschenden Gesellschaft in Bamberg (29), 49-67 (journal article, German)
E. C. Case, 1946 - A Census of the Determinable Genera of the Stegocephalia - Transactions of the American Philosophical Society, New Series (35), 325-420 (journal article, English)
E. C. Olson, 1939 - The fauna of the Lysorophus pockets n the Clear Fork Permian, Baylor County, Texas - The Journal of Geology (47), 389-398 (journal article, English)
M. C. Steen, 1938 - On the fossil Amphibia from the Gas Coal of Nyrany and other deposits of Czechoslovakia - Proceedings of the Zoological Society of London (108), 205-283 (journal article, English)
O. P. Hay, 1930 - - Second Bibliography and Catalogue of the Fossil Vertebrata of North America (390), 1-1074 (book, English)
T. H. Aldrich, 1930 - Footprints from the coal measures of Alabama - Alabama Museum of Natural History Museum Paper (9), 1-64 (journal article, English)
A. S. Romer, 1930 - The Pennsylvanian Tetrapods of Linton, Ohio - Bulletin of the American Museum of Natural History (59), 77-147 (journal article, English)
D. M. S. Watson, 1926 - Croonian lecture.—The evolution and origin of the Amphibia - Proceedings of the Royal Society of London, Series B (214), 189-257 (serial monograph, English)
R. L. Moodie, 1916 - The Coal Measures Amphibia of North America - Carnegie Institution of Washington Publication (238), 1-222 (serial monograph, English)
S. W. Williston, 1913 - Ostodolepis brevispinatus, a new reptile from the Permian of Texas - Journal of Geology (21), 363-366 (journal article, English)
D. M. S. Watson, 1913 - Batrachiderpeton lineatum Hancock & Atthey, a Coal‐Measure Stegocephalian - Proceedings of the Zoological Society of London (83), 949-962 (journal article, English)
O. Jaekel, 1911 - - Die Wirbeltiere. Eine Übersicht über die Fossilen und Lebenden Formen [The Vertebrates. An Overview of the Fossil and Living Forms] (), viii-252 (book, German)
E. C. Case, 1910 - New or little known reptiles and amphibians from the Permian (?) of Texas - Bulletin of the American Museum of Natural History (28), 163-181 (serial monograph, English)
R. L. Moodie, 1909 - A contribution to a monograph of the extinct Amphibia of North America. New forms from the Carboniferous - Journal of Geology (17), 38-82 (journal article, English)
R. L. Moodie, 1909 - Carboniferous air-breathing vertebrates of the United States National Museum - Proceedings of the United States National Museum (37), 11-28 (journal article, English)
A. Thevenin, 1906 - Amphibiens et reptiles du terrain Houiller de France - Annales de Paleontologie (1), 145-163 (journal article, French)
F. Broili, 1904 - Permische Stegocephalen und Reptilien aus Texas - Palaeontographica (51), 1-120 (journal article, German)
O. P. Hay, 1902 - - Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey (179), 1-868 (serial monograph, English)
H. Gadow, 1898 - - A Classification of Vertebrata Recent and Extinct (), xvii-82 (book, English)
E. D. Cope, 1897 - On New Paleozoic Vertebrata from Illinois, Ohio and Pennsylvania - Proceedings of the American Philosophical Society (36), 71-91 (journal article, English)
E. D. Cope, 1896 - The reptilian order Cotylosauria - Proceedings of the American Philosophical Society (34), 436-457 (journal article, English)
H. Credner, 1890 - Die stegocephalen und Saurier aus dem Rothliegenden des Plauen'schen Grundes bei Dresden, IX Theil. Hylonomus geinitzi Cred. Petrobates truncatus Cred. Discosaurus Permianus Cred. - Zeitschrift der Deutschen Geologischen Gesellschaft (42), 240-277 (journal article, German)
R. Lydekker, 1889 - Part III - Palaeozoology. Vertebrata - Manual of palaeontology for the use of students with a general introduction on the principles of palaeontology. Volume II. 3rd edn. William Blackwood and Sons, Edinburgh and London (), 600 p- (book/book chapter, English)
K. A. von Zittel, 1887 - - Handbuch der Palæontologie. I. Abtheilung - Palæozoologie. III. Band - Vertebrata (Pisces, Amphibia, Reptilia, Aves) (), 900 p- (book, German)
E. D. Cope, 1885 - Second continuation of researches among the Batrachia of the Coal Measures of Ohio - Proceedings of the American Phiosophical Society (22), 405-408 (journal article, English)
A. Fritsch, 1883 - Fauna der Gaskohle und der Kalksteine der Permformation Bohmens. Band 1 (1879-1883) - (1), - (book, German)
J. W. Dawson, 1882 - On the Results of Recent Explorations of Erect Trees Containing Animal Remains in the Coal-Formation of Nova Scotia - Philosophical Transactions of the Royal Society of London (173), 621-668 (journal article, English)
E. D. Cope, 1882 - Third contribution to the history of the Vertebrata of the Permian formation of Texas - Proceedings of the American Philosophical Society (20), 447-461 (journal article, English)
H. B. Geinitz, 1882 - Die Saurier der unteren Dyas von Sachsen [Saurians from the Lower Dyas of Saxony] - Palaeontographica (9), 1-46 (journal article, German)
E. D. Cope, 1881 - On some new Batrachia and Reptilia from the Permian beds of Texas - Bulletin of the United States Geological and Geographical Survey (6), 79-82 (journal article, English)
E. D. Cope, 1881 - Catalogue of the Vertebrata of the Permian Formation of the United States - The American Naturalist (15), 162-164 (journal article, English)
A. Fritsch, 1880 - Fauna der Gaskohle und der Kalksteine der Permformation Bohmens - (1), - (book, German)
E. D. Cope, 1878 - Descriptions of extinct Batrachia and Reptilia from the Permian formations of Texas - Proceedings of the American Philosophical Society (17), 505-530 (journal article, English)
E. D. Cope, 1877 - Descriptions of extinct Vertebrata from the Permian and Triassic formations of the United States - Proceedings of the American Philosophical Society (17), 182-193 (journal article, English)
E. D. Cope, 1877 - A continuation of researches among the Batrachia of the Coal Measures of Ohio - Proceedings of the American Philosophical Society (22), 573-578 (journal article, English)
A. Fritsch, 1876 - Über die Fauna der Gaskohle des Pilsner und Rakonitzer Beckens - Sitzungs-Berichte der koniglichen bohmischen Gellschaft der Wissenschaften Prag (1875), 70-78 (journal article, English)
E. D. Cope, 1875 - The extinct Batrachia of Ohio - Proceedings of the Academy of Natural Sciences of Philadelphia (16), - (journal article, English)
E. D. Cope, 1875 - Synopsis of the Extinct Batrachia from the Coal Measures - Report of the Geological Survey of Ohio (2), 349-411 (book/book chapter, English)
L. C. Miall, 1875 - On the Structure and Classification of the Labyrinthodonts - Report of the British Association for the Advancement of Science (44), 149-192 (serial monograph, English)
E. D. Cope, 1875 - Check-list of North American Batrachia and Reptilia; with a systematic list of the higher groups, and an essay on geographical distribution. Based on the specimens contained in the U. S. National Museum - Bulletin of the United States National Museum (1), 1-109 (journal article, English)
A. Fritsch, 1875 - Uber die Fauna der Gaskohle des Pilsner und Rakonitzer Beckens - Sitz. K. boehmischen Gesellsch. der Wiss. In Prag. Jahrgang (), 70-79 (journal article, German)
E. D. Cope, 1871 - Stated Meeting, Nov. 3d, 1871 - Proceedings of the American Philosophical Society (12), 176-177 (journal article, English)
E. P. Wright, 1871 - On a Collection of Fossil Vertebrata, from the Jarrow Colliery, County of Kilkenny, Ireland - Transactions of the Royal Irish Academy (24), 351-370 (journal article, English)
E. D. Cope, 1869 - - Synopsis of the Extinct Batrachia, Reptilia and Aves of North America. Part I. Transactions of the American Philosophical Society, New Series (14), 1-104 (serial monograph, English)
A. Hancock, 1869 - On a new labyrinthodont from the Northumberland coal field, and on the occurrence in the same locality of Anthracosaurus russelli - Annals and Magazine of Natural History (4), 182-189 (journal article, English)
E. D. Cope, 1868 - Synopsis of the Extinct Batrachia of North America - Proceedings of the Academy of Natural Sciences of Philadelphia (1868), 208-221 (journal article, English)
T. H. Huxley, 1867 - On a collection of fossil Vertebrata from the Jarrow Colliery, County of Kilkenny, Ireland - Transactions of the Royal Irish Academy (24), 351-368 (journal article, English)
E. Haeckel, 1866 - - Generelle Morphologie der Organismen, Allgemeine Grundzuge der Organischen Formen-Wissenschaft, Mechanisch Begründet Durch die von Charles Darwin Reformirte Descendez-Theorie. Verlag von Georg Reimer, Berlin (), CLX-462 (book, German)
E. P. Wright, 1866 - Pn a collection of fossils from the Jarrow Colliery, Kilkenny - Geological Magazine (3), 165-171 (journal article, English)
H. v. Meyer, 1866 - Reptilien aus dem Kupfer-Sandstein des West-Uralischen Gouvernements Orenburg - Palaeontographica (15), 97-130 (journal article, German)
J. W. Dawson, 1863 - - Air-Breathers of the Coal Period: A Descriptive Account of the Remains of Land Animals Found in the Coal Formation of Nova Scotia with Remarks on their Bearing on Theories of the Formation of Coal and of the Origin of Species. Dawson Brothers, Montreal (), 81 p.- (book/book chapter, English)
R. Owen, 1862 - Description of Specimens of Fossil Reptilia discovered in the Coal-measures of the South Joggins, Nova Scotia, by Dr. J. W. Dawson, FGS, etc - Quarterly Journal of the Geological Society of London (18), 238-244 (journal article, English)
H. B. Geinitz, 1861 - Sauriern des Rothliegenden [Saurians from the Rothliegenden] - Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrfakten-Kunde (1861), 65-67 (journal article, German)
F. A. Ritgen, 1828 - Versuch einer natürlichen Eintheilung der Amphibien [Attempt of a natural division of the amphibians] - Verhandlungen der Kaiserlichen Leopoldinisch-Carolinischen Akademie der Naturforscher (14), 247-284 (journal article, German)
C. Linnaeus, 1758 - - Systema Naturae per Regna Tria Naturae, Secundum Classes, Ordines, Genera, Species, cum Characteribus, Differentiis, Synonymis, Locis. Editio Decima (1), 1-824 (book, other)
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