Subject ASC0001kit
The Quarterly journal of the Geological Society of London.
v.16 (1860), Page 270 (1860)
Smithsonian Libraries
BHL Page 35428045
Keywords
Shell Seashell Fig 2 - shell articulated wormlike animal Nova Scotia freshwater brackish water Pupa vetusta ridge pattern Fig 1 - shell magnified shell structure Fig 3 - shell magnified shell structure from apex shell spiral coal measure nova scotia canada magnify magnified view ridge apex vertical line seashell imprints fossil