Otodus chubutensis

(Ameghino, 1901)


Classification: Elasmobranchii Lamniformes Otodontidae

Reference of the original description
Ameghino, F. (1901)
L'âge des formations sédimentaires de Patagonie. Anales de la Sociedad Científica Argentina, 51: 20–39, 65–91

Types
Otodus chubutensis



Description:


Citation: Otodus chubutensis (Ameghino, 1901): 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 Ameghino (1901) p. 83 [50]: Carcharodon chubutensis n. sp. Aussi grande que C. megalodon ; les dents en différent par le bord postérieur plus creusé, et par la présence sur la base d'une paire de saillies larges et basses et á bords dentelés comme le grand cône principal; ces saillies sont accompagnées d'une paire de tous petits tubercules basales. Ces caractères sont plus fortement marqués sur les dents postérieures que sur les antérieures.

References
link: https://molasse-haie-rochen.de/haie/lamniformes/otodus-megaselachus-chubutensis/


References
Perez, V.J. & Leder, R.M. & Badaut, T. (2021)
Body length estimation of Neogene macrophagous lamniform sharks (Carcharodon and Otodus) derived from associated fossil dentitions. Palaeontologia Electronica, 24(1), Article a09
DOI: 10.26879/1140
Godfrey, S.J. & Nance, J.R. & Riker, N.L. (2021)
Otodus-bitten sperm whale tooth from the Neogene of the Coastal Eastern United States. Acta Palaeontologica Polonica, 66(3), 599–603
DOI: 10.4202/app.00820.2020
Maisch, H.M. & Becker, M.A. & Chamberlain, J.A. (2020)
Macroborings in Otodus megalodon and Otodus chubutensis Shark Teeth from the Submerged Shelf of Onslow Bay, North Carolina, USA: Implications for Processes of Lag Deposit Formation. Ichnos, in press
DOI: 10.1080/10420940.2019.1697257
Pollerspöck, J. (2019)
Megalodon und Weißer Hai – Neues zu Evolution, Taxonomie und Paläoökologie. Fossilien, 36(6), 33-38
Condamine, F.L. & Romieu, J. & Guinot, G. (2019)
Climate cooling and clade competition likely drove the decline of lamniform sharks. Proceedings of the National Academy of Sciences of the United States of America, 116(41), 20584–20590
DOI: 10.1073/pnas.1902693116
Maisch, H.M. & Becker, M.A. & Chamberlain, J.A. (2018)
Lamniform and Carcharhiniform Sharks from the Pungo River and Yorktown Formations (Miocene–Pliocene) of the Submerged Continental Shelf, Onslow Bay, North Carolina, USA. Copeia, 106(2), 353–374
DOI: 10.1643/OT-18-016