Samlinger Lokaliteter TidstavleFaunalister Blin


Machimosaurus sp.

 Faktiske data om fund 
Katalognummer:
885
Accessionsnummer:
DK 917
Samling:
Danekræsamlingen
Samler:
Statens Naturhistorisk Museum
Finder:
Christian Bach Hansen
Bestemt af:
Jesper Milàn
Lokalitet:
Stratigrafi:
Periode:
Type:
Konkretion
Sediment:

Billede

Foto ©: Sten Lennart Jakobsen


Billede

Foto ©: Sten Lennart Jakobsen


 Beskrivelse:   af  Jesper Milàn 
This is a very nice tooth – and I would definitely say that it is from a crocodile. I am not completely sure, to which taxon the tooth might belong. It could be a Machimosaurus tooth, but the denticulation at the apex is not as crinkled as in the specimens shown in the paper. Alternatively, the tooth might belong to a Goniopholis or close relative from the Wealden – it looks rather similar in shape (although there is some shape overlap with Machimosaurus teeth, so this is why I have thought of this taxon first), size, and also striation of the tooth crown (in particular the fanning out of the small striae at the apex). I have not found good images for Goniopholis teeth, and there has been a lot of new taxonomic stuff been published which means that there are two or three goniopholidid genera around now in the Wealden facies of Northwestern Europe. They have not been described in detail in terms of differences in the dentition, so their teeth might be rather similar to each other.

Summing up, my choice would be that this tooth is from a goniopholidid crocodile. According to Bent Lindow, a similar tooth does not existe in the collection of the SNM, so based on that it is a new addition to the Mesozoic vertebrate record of Denmark and that the tooth is very well preserved and possesses a good exhibitional value.
We will recommend it is declared Danekræ.


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