Crilobite (Paradoxides harlani)
Bob Campbell Geology Museum 540 million years old; Formation: Braintree Slate.
Elrathia gregoryensis, complete trilobite cast
Bob Campbell Geology Museum Formation: Conasauga Formation.
Elrathia sp., left side of trilobite thorax in matrix
Bob Campbell Geology Museum Formation: Conasauga Formation.
Modocia laevinucha, three incomplete ex uviae, freecheeks missing
Bob Campbell Geology Museum Formation: Marjum Formation.
Neodrepaneura premesnili, pygidia in matrix
Bob Campbell Geology Museum Formation: Kushan Formation.
Olenellus clarki, two partial cephalons, only anterior portion of glabella
Bob Campbell Geology Museum Formation: Latham Shale.
Peronopsis sp., complete exoskeleton in dorsal view
Bob Campbell Geology Museum Formation: Conasauga Formation.
Peronopsis sp., natural mold of complete exoskeleton
Bob Campbell Geology Museum Formation: Conasauga Formation.
Peronopsis sp., single complete specimen
Bob Campbell Geology Museum Formation: Conasauga Formation.
Peronopsis sp., two complete exoskeletons
Bob Campbell Geology Museum Formation: Conasauga Formation.
Peronopsis sp., two complete exoskeletons
Bob Campbell Geology Museum Formation: Conasauga Formation.
Ptychagnostus sp., elrathia kingii wheeler shale
Bob Campbell Geology Museum Formation: Wheeler Shale.
Trilobite (Acadoparadoxides sp.)
Bob Campbell Geology Museum 545 million years old; Formation: Jbel Wawarmast Formation.
Trilobite (Agnostus interstictus)
Bob Campbell Geology Museum 510 million years old; Formation: Wheeler Shale.
Trilobite (Asaphiscus wheeleri)
Bob Campbell Geology Museum 500 million years old; Donated: H. Abercrombie.