This fossil is an Wiwaxia sp. (Walcott, 1911) which might be an extinct mollusc. It was found by Charles Walcott (1850-1927) in 1911 in B...

  The fossil for today's posting is Tennessee's state fossil (I think, the genus name is slightly different). This bivalve mollusk i...

The image is of a Rudist mollusc shell fossil Hippurites rudiosus Des Moulins on display at the British Natural History Museum in Londo...

This image shows a  Hippurites  (Lamarck, 1801) marine bivalve mollusk fossil at the Museo di Paleontologia at Sapienza University of Rom...