Pliocene gastropod from lignite deposit, Mesontopsis?

[Mahnmut]

Dear fellow forum members,

some years ago I acquired some remnants of an old collection with poor documentation, most fossils where from germany.

Among these was a gastropod shell in very light matrix I assumed to be lignite or something similar.

Yesterday I found a very similar shell for sale online with the following ID:

"Schnecke, Mesontopsis nehringi, Tertiär, Pliozän,Tagenbau Hambach"

"Tagebau" is open pit mining, lignite in that case.

The one on red background is mine.

I think I can assume they are the same species. I just cannot find any information on "Mesontopsis nehringi" except for that online auction.

Who knows that snail?

[FranzBernhard]

Mesodontopsis nehringi (link to wikipedia)

 

Btw, the matrix isn´t lignite.

 

Franz Bernhard

 

[Mahnmut]

Thanks Franz,

that was quick!

you are of course right,  on closer inspection the matrix appears like sandstone. The specimen was in a box with coal fossils and the matrix looks brownish in parts, which had me fooled. The surface seems somehow coated, I assumed it had to be stabilized. 

Best Regards,

Jan