Gastropod, partial snail that is high-spired and loosely coiled
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Gastropod, partial spire of a snail shell
Bob Campbell Geology Museum Formation: Eastover Formation.
Glabrocingulum grayvillense, shell conical, fairly high-spired with a blunt apex
Bob Campbell Geology Museum Formation: Graham Formation; Wayland shale member.
Goniasma sp., incomplete high-spired snail shell
Bob Campbell Geology Museum Formation: Washington Shale.
Goniobasis tenera, chert packed with silicified gastropod steinkerns
Bob Campbell Geology Museum Formation: Green River Formation; Lumen tongue member.
Goniobasis tenera, chet packed with silicified gastropods and steinkerns
Bob Campbell Geology Museum Formation: Green River Formation.