Samlinger Lokaliteter TidstavleFaunalister Blin


Nebrius sp.

 Faktiske data om fund 
Katalognummer:
576
Accessionsnummer:
DK 642
Samling:
Danekræsamlingen
Samler:
Statens Naturhistorisk Museum
Finder:
Alice Rasmussen
Bestemt af:
Lokalitet:
Rødvig, Stevns Klint
Stratigrafi:
Periode:
Type:
Sediment:

 Beskrivelse:   af  Jan Adolfssen 
Description:
The specimen is multicuspid with a triangular main cusp which is slightly larger than the cusplets. The main cusp is curved towards the commissure and flanked by three mesial and two small distal cusplets. The cusplets are short and acute and curving towards the main cusp. The crown of the tooth is slightly asymmetrical, wide and low with a smooth and convex labial face. The basal edge of the crown is strongly overhanging the root and the apron is wide and bifid. The lingual face is smooth and convex. The root is missing.

Conclusion:
The tooth is a lateral tooth belonging to the genus Nebrius (family Ginglymostomatidae), differs from Ginglymostoma and Plicatoscyllium in the lesser main cusp and the non­ symmetrical shape of the crown. The oldest known specimen of Nebrius is from the Late Maastrichtian Kemp Fm. in Texas (Case and Cappetta,1997),so this specimen is among the earliest known specimens of this particular genus and the oldest from Europe.

I will recommend that this specimen is declared Danekræ.

References: Case, G. R. and Cappetta,H. 1997. A new selachian Fauna from the Late Maastrichtian of Texas (Upper Cretaceous/Navarroan;Kemp Formation) Munchner Geowiss. Abh. A, 34,131-189


 Note Fisk - haj - Nebrius sp.

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