Its official state fossil is Chesapecten Jeffersonius
[DOC] [TLE] Virginia State Fossil :Chesapecten jeffersonius (Pliocene scallop ... [PAR] Virginia State Fossil :Chesapecten jeffersonius (Pliocene scallop) fossil shell - | 
See ... (a scallop that lived during the Pliocene age) as the official state fossil in 
1993.