These pictures are of pieces of the  Asaphus expansis trilobite fossil. They were found in Gillberga Quarry (Hjorthamn Limestone?) on ...

The cone-in-cone structures form in sedimentary environment.The specimen pictured appears to be from the Coral Ridge Member of the New Provi...

Fossil appears to be a  Pleurodictyum maximum coral. It is credited to Gerard Troost in the 1840 5th Annual Report on the Geology of Tennes...