Agassiz, L. (1835). Kritische Revision der in der Ittiolitoiogin Veronese abgebildeten fossilen Fische. Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde, pp. 290–316.
Aguilera, O. (2010). Peces Fósiles del Caribe de Venezuela. Washington, DC: Gorham Printing.
Google Scholar
Alvarado-Ortega, J., Garibay-Romero, L. M., Blanco-Piñon, A., González-Barba, G., Vega-Vera, F. J., & Centeno-García, E. (2006). Los peces fósiles de la Formación Mexcala (Cretácico Superior) en el Estado de Guerrero, México. Revista Brasileira de Paleontología,
9(3), 261–272.
Article
Google Scholar
Antunes, M. T., & Cappetta, H. (2002). Sélaciens du Crétacé (Albién-Maastrichtien) d’Angola. Palaeontographica, Abtheilung A,
264, 85–146.
Google Scholar
Blanco-Pinion, A., Garibay-Romero, L., & Alvarado-Ortega, J. (2007). The oldest stratigraphic record of the Late Cretaceous shark Ptychodus mortoni Agassiz, from Vallecillo, Nuevo Leon, northeastern Mexico. Revista Mexicana de Ciencias Geológicas,
24(1), 25–30.
Google Scholar
Brito, P. M., & Janvier, P. (2002). A ptychodontid (Chondrichthyes, Elasmobranchii) from the Upper Cretaceous of South America. Geodiversitas,
24(4), 785–790.
Google Scholar
Cappetta, H. (2012). Chondrichthyes II: Mesozoic and Cenozoic Elasmobranchii: Teeth. In H.-P. Schultze (Ed.), Handbook of Paleoichthyology (Vol. 3E). München: Gustav Fischer Verlag.
Carrillo, J. (2009). Presencia del genero Ptychodus (Elasmobranchii: Ptychodontiade) en el Cretácico superior de los Andes de Trujillo Venezuela. Geominas,
37(50), 207–210.
Google Scholar
Carrillo-Briceño, J. (2012a). Presencia de Ptychodus mortoni (Elasmobranchii: Ptychodontidae) en el Cretácico Superior de Venezuela. Revista Geológica de América Central,
46, 145–150.
Google Scholar
Carrillo-Briceño, J. (2012b). El Cretácico Marino y su fauna de Vertebrados. In M. R. Sánchez-Villagra (Ed.), Venezuela Paleontológica: Evolución de la diversidad en el pasado (pp. 119–132). St. Gallen: Printwork Art GmbH.
Google Scholar
Garrity, C. P., Hackley, P. C., & Urbani, P. F. (2010). Digital shaded relief map of Venezuela (v.20): US Geological Survey Open-File Report 2004-1322. http://pubs.usgs.gov/of/2004/1322/.
Hamm, S. (2009). New data on the occurrence and distribution of Ptychodus from the Upper Cretaceous (Coniacian-Santonian) of Texas. Dallas Paleontological Society Occasional Papers,
8, 48–77.
Google Scholar
Hamm, S. A., & Cicimurri, D. J. (2011). Early Coniacian (Late Cretaceous) selachian fauna from the basal Atco Formation, lower Austin Group. North Central Texas. Paludicola,
8(3), 107–127.
Google Scholar
Hamm, S., & Shimada, K. (2004). A Late Cretaceous Shark, Ptychodus martini Williston from Texas. The Texas Journal of Science,
56(3), 215–222.
Google Scholar
Huxley, T. H. (1880). On the application of the laws of evolution to the arrangement of the Vertebrata and more particularly of the Mammalia. Proceedings of the Zoological Society of London,
1880, 649–662.
Google Scholar
Jaekel, O. (1898). Die Selachier aus dem oberen Muschel kalk Lothringens. Abhandlungen Geologische Spezialk. Elasass-Lothringen, Series,
3(4), 273–332.
Google Scholar
Johnson, S. C., Lucas, S. G., & Friedman, V. (2002). Stratigraphic range and biostratigraphic utility of the Cretaceous shark genus Ptychodus. Geological Society of America, Abstracts with Programs,
34(6), 462.
Google Scholar
Kauffman, E. G. (1972). Ptychodus predation upon a Cretaceous Inoceramus. Palaeontology,
15, 439–444.
Google Scholar
La Marca, E. (1997). Origen y Evolución Geológica de la Cordillera de Mérida, Venezuela. Mérida: Universidad de Los Andes, Cuadernos Geográficos.
Google Scholar
Leriche, M. (1902). Révision de la fauna icthyologique des terrains cretaces du Nord de la France. Annales de la Société Géologique du Nord,
31, 87–155.
Google Scholar
MacLeod, N. (1982). The first North American occurrence of the Late Cretaceous elasmobranch Ptychodus rugosus Dixon with comments on the functional morphology of the dentition and dermal denticles. Journal of Paleontology,
56, 403–409.
Google Scholar
Maisey, J. G., Naylor, G. J. P., & Ward, D. J. (2004). Mesozoic elasmobranchs, neoselachian phylogeny and the rise of modern elasmobranch diversity. In G. Arratia & A. Tintori (Eds.), Mesozoic fishes 3, systematic, paleoenvironment and biodiversity (pp. 17–56). München: Verlag Dr. Friedrich Pfeil.
Google Scholar
Mantell, G. A. (1839). The Wonders of Geology; or, a Familiar Exposition of Geological Phenomena; Being the Substance of a Course of Lectures Delivered at Brighton (3rd ed., Vols. 2). London: Reese and Fletcher.
Marcou, J. (1858). Geology of North America, with two reports on the prairies of Arkansas and Texas, the Rocky Mountains of New Mexico, and the Sierra Nevada of California. Zurcher and Furrer: Originally made for the United States Government. Zürich.
Google Scholar
Meyer, R. E. (1974). Late Cretaceous elasmobranchs from the Mississippi and east Texas embayments of the Gulf Coastal Plain. Unpublished Ph.D. Dissertation, Southern Methodist University, Dallas, TX, p. 419.
Müller, A. (2008). Ein artikulierter fund von Ptychodus aus dem Obercenoman von Westfalen. Geologie und Paläontologie in Westfalen,
70, 55–63.
Google Scholar
Mutter, R. J., Iturralde-Vinet, M., & Carmona, J. F. (2005). The first Mesozoic Caribbean shark is from the Turonian of Cuba: Ptychodus cyclodontis sp. nov. (? Neoselachii). Journal of Vertebrate Paleontology,
25(4), 976–978.
Article
Google Scholar
Reinhart, R. T. (1951). A new shark of the family ptychodontide from South America. University of California Publications, Bulletin of Geological Sciences,
28, 195–202.
Google Scholar
Romer, A. S. (1945). Vertebrate Paleontology. Chicago: University of Chicago press.
Google Scholar
Shimada, K. (2012). Dentition of late Cretaceous shark, Ptychodus mortoni (Elasmobranchii, Ptychodontidae). Journal of Vertebrate Paleontology,
32(6), 1271–1284.
Article
Google Scholar
Shimada, K., Rigsby, C. K., & Kim, S. H. (2009). Partial skull of Late Cretaceous durophagous shark, Ptychodus occidentalis (Elasmobranchii: Ptychodontidae), from Nebraska, USA. Journal of Vertebrate Paleontology,
29, 336–349.
Article
Google Scholar
Silva, M. (2007). Os vertebrados da Bacia da Paraíba: Cretáceo superior-Paleoceno, Nordeste do Brasil. Unpublished Magister Dissertation. Universidad federal of Pernambuco, Brasil, p. 201.
Underwood, C. J., & Cumbaa, S. L. (2010). Chondrichthyans from a Cenomanian (Late Cretaceous) bonebed, Saskatchewan, Canada. Palaeontology,
53, 903–944.
Article
Google Scholar
Verma, O., Prasad, G. V. R., Goswami, A., & Parmar, V. (2012). Ptychodus decurrens Agassiz (Elasmobranchii: Ptychodontidae) from the Upper Cretaceous of India. Cretaceous Research,
33, 183–188.
Article
Google Scholar
Welton, B. J., & Farish, R. F. (1993). The Collector’s Guide to Fossils Sharks and Rays from the Cretaceous of Texas. Lewisvile, TX: Before time.
Google Scholar
Wenz, S. (1972). Présence du Sélacien Ptychodus (P. chappelli) dans le Crétacé supérieur de l’Equateur (Amérique du Sud). Bulletin du Muséum National d’Histoire Naturelle,
74, 91–94.
Google Scholar
Williamson, T. E., Lucas, S. G., & Kirkland, J. I. (1991). The Cretaceous elasmobranch Ptychodus decurrens Agassiz from North America. Geobios,
24, 595–598.
Article
Google Scholar
Williamson, T. E., Lucas, S. G., & Pence, R. (1989). Selachians from the Hosta Tongue of the Point Lookout Sandstone (Upper Cretaceous, Santonian), central New Mexico. New Mexico Geological Society, Guidebook,
40, 239–245.
Google Scholar
Williston, S. W. (1900). Some fish teeth from the Kansas Cretaceous. Kansas University Quarterly,
9, 27–42.
Google Scholar
Woodward, A. S. (1889). Catalogue of the fossil fishes in the British Museum (Part 1, p 474). London: British Museum of Natural History.
Woodward, A. S. (1904). On the Jaws of Ptychodus from the Chalk. Quarterly Journal of the Geological Society,
60, 133–136.
Article
Google Scholar