Jurassic bivalve fossils from Western Lithuania

[D.N.FossilmanLithuania]

Good morning everyone,

 

Few days ago I was in Klaipeda district with my godmother and collected many bivalve fossils in black and brown marine erratic boulders. 

The majority of rocks should be typical to Jurassic, some ammonites and bivalves I recently identified speaks that there should be many specimens from Toarcian- Aalenian and younger ages. I would be very happy if you help me to know the precise age of each bivalve specimen because then I would know the age of each erratic boulder and bivalve species that I could use in my further publication about mollusc fossils.

 

Best Regards

Domas 

[D.N.FossilmanLithuania]

The last bivalves and other mollusk remains.

 

[D.N.FossilmanLithuania]

There also could be some Cenozoic rocks with mollusk remains because marine mollusk species can be similar in appearance in various age but I guess you will help me to separate older and younger species.

[D.N.FossilmanLithuania]

The last specimens- I think it is Cryptaulax armatus and Pholadomya sp. If I am correct then the most possible age of these erratic boulders would be Early Jurassic and Aalenian.