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Carinodens minalmamar

 Faktiske data om fund 
Katalognummer:
877
Accessionsnummer:
DK 907
Samling:
Danekræsamlingen
Samler:
Statens Naturhistorisk Museum
Finder:
Stefan Lips
Bestemt af:
Jesper Milàn
Lokalitet:
ved Mandehoved, Stevns Klint
Stratigrafi:
Højerup Member
Periode:
Sen Maastrichtien
Type:
Sediment:
Skrivekridt

Billede

Foto ©: Sten Lennart Jakobsen


 Beskrivelse:   af  Jesper Milàn 
DK-907 represents a tooth of the rare durophagous mosasaur Carinodens minalmamar found in the uppermost Maastrichtian Højerup Member at Stevns Klint, representing the very last 50.000 years of the Maastrictian. The find is a shed tooth probably representing a tooth from position #11-13 in the jaw. Carinodens is known from the Maastrichtian of Belgium and The Netherlands, and the new tooth represents the northernmost occurrence of Carinodens. Previous mosasaur finds from Denmark has all been from the carnivorous mosasaurids Mosasaurus hofmanni and Plioplatecarpus sp. The small durophagous mosasaur Carinodens belgicus (Dollo, 1913) is known from a handful of dentaries and a few dozen isolated teeth (e.g., Mulder et al., 2013); the smaller and somewhat more gracile Carinodens minalmamar is even rarer (Schulp et al., 2010). This mosasaur genus has been reported from both sides of the Northern and Southern Atlantic, and additional occurrences range into the eastern Tethyan realm. To date, the taxon has been reported from the Netherlands, Belgium, Bulgaria, Russia, Ukraine, Morocco, Jordan, Angola and the Congo Basin, the USA, and Brazil (Schulp et al., 2004; Mulder et al., 2013 and refs therein). Interestingly, most of these occurrences have been recognized and reported in the last decade only. DK-907 now extends the range of Carinodens further north to Denmark, and we recommend it to be declared Danekræ.

Kommentarer af Sten Lennart Jakobsen:
Mosasaurer var store, marine krybdyr med et krokodille-formet hoved og en slangelignende krop, der ligesom dinosaurerne og mange andre dyregrupper uddøde på overgangen mellem Kridt og Danien for omkring 65 mill. år siden. Mosasaurerne levede i havet, men formodentlig holdt de især til på lavt vand nær datidens kyster. I det mindste er de fleste rester af mosasaurer i det dansk-sydsvenske område fundet i det nordøstlige Skåne, hvor aflejringer fra skrivekridthavets kystnære del er bevaret. Fra det danske skrivekridt kendes enkelte tænder, som blot vidner om at dyrene lejlighedsvis har befundet sig det danske område.


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