Please ID bivalves

[Coryander]

Please ID species.

Found it in Algarve, Portugal (miocene, I guess).

I would also ask you to please advise me how to preserve it. Shall I varnish it?

Thank you.

 

 

[Fossildude19]

These are steinkerns - internal casts of shells. 

They will be difficult to identify as there isn't much detail on the inside of the shells. 

[caldigger]

Just to answer your question in every one if your inquiries, I don't think you need to do anything to your finds as far as preservation unless they are in danger of flaking apart or crumbling.

They all look to be quite stable.

[Max-fossils]

As Tim said, steinkerns are usually impossible to be assigned to a species. You can always try to guess possibilities (for example, that very big one could be Arctica islandica), but these guesses are always purely a hunch, and can never be backed up with true evidence.

 

As for preservation, they should be fine as they are. Just put them in a box and it's all good. I've never had any of my steinkerns suffer from any problems. 

 

Did you also find some of those beautiful white fossil scallops in Algarve?  

 

[Coryander]

1 hour ago, Max-fossils said:

Did you also find some of those beautiful white fossil scallops in Algarve?  

 

 

Please look here