Ammonite (Eopachydiscus marcianus)Bob Campbell Geology Museum100 million years old; Formation: Duck Creek Limestone; Donated: Mr. and Mrs. Alvin Gosnell.
Ammonite (Mortaniceras equidistans)Bob Campbell Geology Museum100 million years old; Formation: Duck Creek Limestone; Donated: Mr. and Mrs. Alvin Gosnell.
Amphibian (Branchiosaurus petrolei)Bob Campbell Geology Museum288 million years old; Formation: Odernheim Schichten; Donated: Mr. and Mrs. Robert Campell.
Amphibian (Branchiosaurus petrolei)Bob Campbell Geology Museum288 million years old; Formation: Odernheim Schichten; Donated: Mr. and Mrs. Robert Campell.