Ginglymostoma obliquum

Leidy, 1877


Classification: Elasmobranchii Orectolobiformes Ginglymostomatidae

Reference of the original description
Leidy, J. (1877)
Description of vertebrate remains, chiefly from the Phosphate Beds of South Carolina. Journal of the Academy of Natural Sciences of Philadelphia, 8(2): 209–261, pl. 30–34

Types
Ginglymostoma obliquum



Description:


Citation: Ginglymostoma obliquum Leidy, 1877: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 12/2021

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Description
Original diagnose after Leidy (1877) p. 250: Figure 14, Plate xxxiv., represents a tooth nearly like those just described, but having the main point directed to one side so as to recall to mind the teeth of Galeocerdo. The specimen was obtained in the in marl of Monmouth Co., New Jersey, and was presented to the Academy by Dr. Knieskern. The inner acute border of the crown is the longer, and is convex in its course from the base of the main point. It presents seven denticles successively decreasing in size. The outer side presents two larger denticles succeeded by four minute ones. The construction of the base of the crown is like that of the preceding teeth. Length of the tooth, 3 lines; breadth, 3 1/4 lines; thickness at base, 2 3/4 lines. I have regarded the tooth as representing a species distinct from that to which the Ashley fossils pertain, under the name above given.

Remarks
valid after Case (1981) p. 61 [391];

References
Távora, V.R. & Santos, A.A.R. & Araújo, R.N. (2010)
Sobre novos achados de sirenios (Sirenotherium pirabense Paula Couto, 1976) na Formacao Pirabas (Para, Brasil). Boletim do Museu Paraense Emílio Goeldi Ciências Naturais, Belém 5(2): 207-224
Dos Reis, M.A.F. & Balbino, A.C. & Antunes, M.T. (2006)
Comparação entre faunas miocénicas de elasmobrânquios do Brasil e de Portugal [Comparisons between Miocene Elasmobranch faunas from Brazil and Portugal] [Abstract]. Abstracts VII Congresso Nacional de Geologia, Estremoz, 29 de Junho a 13 de Julho de 2006
Kruckow, T. & Thies, D. (1990)
Die Neoselachier der Paleokaribik (Pisces: Elasmobranchii). Courier Forschungsinstitut Senckenberg, 119: 1–102
Case, G.R. (1981)
Late Eocene selachians from South-central Georgia. Palaeontographica, Abt. A, 176(1–3), 52–79
Case, G.R. (1975)
Shark's teeth. Outdoors in Georgia, 4(3): 5–10
Santos, R.S. & Travassos, H. (1960)
Contribuicão à Paleontologia do estado do Pará. Peixes fósseis da Formacão Pirabas. Divisao de Geologia e Mineralogia, Rio de Janeiro, Monografia, 16: 35 p., 11 fig., 5 pl.
Leriche, M. (1942)
Contribution à l'étude des faunes ichthyologiques marines des terrains tertiaires de la Plaine Côtière Atlantique et du centre des Etats-Unis. Les synchronismes des formations tertiaires des deux côtés de l'Atlantique. Mémoires de la Société géologique de France, 45(2–4): 1–110, 8 pl.
Fowler, H.W. (1911)
A description of the fossil fish remains of the Cretaceous, Eocene and Miocene formations of New-Jersey. Geological Survey of New Jersey Bulletin, 4: 182 p., 108 fig.
Hay, O.P. (1902)
Bibliography and catalogue of the fossil Vertebrata of North America. Bulletin of the United States Geological and Geographical Survey of the Territories, 179: 1–868