6

5

5,

4

2

3

1

DSC01547

DSC00178

DSC02415

Jeletzkytes nebrascensis, cretacico,Dakota,USA

DSC01628

DSC01636

Douvilleiceras mammillatum,Albiense,Mahajanga, Madagascar

DSC01631

DSC01633

Kosmoceras s.p ,calloviense, Rusia

DSC01629

DSC02410

DSC01652

DSC01656

DSC01645

DSC01646

DSC01719

Solenopleuropsis torali,cambrico medio,Barrios de Luna,leon

DSC01714

DSC01713

DSC01699

DSC01553

DSC01717

DSC01717

DSC01716

DSC01751

DSC01740

DSC01738

DSC01728

DSC01727

DSC01727

DSC02395

DSC01726