Samlinger Lokaliteter TidstavleFaunalister Blin


Isurus desori

 Faktiske data om fund 
Katalognummer:
513
Accessionsnummer:
DK 572
Samling:
Danekræsamlingen
Samler:
Statens Naturhistorisk Museum
Finder:
Mette Hofstedt
Bestemt af:
Gilles Cuny
Lokalitet:
Lyby Strand, Salling
Stratigrafi:
Vejle Fjord Formationen
Periode:
Sen Oligocæn [Chattien]
Type:
Sediment:

Billede

Foto ©: Sten Lennart Jakobsen


 Beskrivelse:   af  Gilles Cuny 
DK 572 is a large shark tooth found in a nodule. Details of the locality are given below at the end of this report. It is 36 mm high and shows a narrow but robust crown devoid of ornamentation but with well-developed cutting edges and a deep root. The labial face of the crown is almost flat whereas the lingual one is convex. In mesial or distal view, the crown shows a clear sigmoid curvature. Such characters indicate that this tooth is a second right lower tooth of Isurus desori. Although well known in the Miocene, this species is rare in the Oligocene, having only been mentioned from the Lower Oligocene of Belgium, and the validity of the species is controversial. Although a single tooth will not allow settling the current dispute about its validity, such a specimen will be quite important for a complete revision of the species. Moreover, it is a very nice specimen of display quality. I therefore support its nomination as a Danekræ fossil.

 Note Bruskfisk - haj - Isurus desori

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