Subject ASC0003yje
The geologist : a popular monthly magazine of geology.
v.3 (1860), Page 321 (1860)
American Museum of Natural History Library
BHL Page 47622289
Keywords
Ammonites Bouchardianus ammonite spiral shell chamber marine ocean water cross section of a spiral shell amonites Bouchardianus Folkstone S. J. Mackie geology Mackie S.J. ammonites Bouchardianus cephalopod fossils snail