Subject ASC0003spy

The geological magazine, or, Monthly journal of geology.
Decade 2:v.4 (1877) [Incomplete], Page 434 (1877)
Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
BHL Page 32579367

Keywords

marl fossilferous sand gravel tuff valey of the timber pliocene ancient geology layers section tiber mountains pilocene

Contributors

Species