Cederstroemia triangulata

Siverson, 1995


Classification: Elasmobranchii Orectolobiformes Orectolobidae

Reference of the original description
Siversson, M. (1995)
Revision of Cretorectolobus (Neoselachii) and description of Cederstroemia n. gen., a Cretaceous carpet shark (Orectolobiformes) with a cutting dentition. Journal of Paleontology, 69(5), 974–979

Types
Cederstroemia triangulata
Holotype: LU: LO 6724; Paratype: LU: LO 6723; LU: LO 6725; LU: LO 6726;


Description:


Citation: Cederstroemia triangulata Siverson, 1995: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 12/2024

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Description
Original diagnose after Siverson (1995) p. 976 [2215]: Basal face of root subtriangular, hemiaulacorhizous or holaulacorhizous. Hemiaulacorhizous teeth with a central foramen much larger than mediolingual foramen that opens on lingual protuberance. Distally directed cusp poorly detached from mesial oblique heel in lateral files.

Remarks
shark-references Species-ID=1216;
type species of Cederstroemia Siverson, 1995 p. 975 [2215] by original designation (Art. 68.2 ICZN);

valid after Siverson (1995) p. 976 [2215]; Guinot et al. (2013) p. 621 [24889];


References
Guinot, G. & Condamine, F.L. (2023)
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Siversson, M. (1995)
Revision of Cretorectolobus (Neoselachii) and description of Cederstroemia n. gen., a Cretaceous carpet shark (Orectolobiformes) with a cutting dentition. Journal of Paleontology, 69(5), 974–979