Subject ASC0000z6e
The Quarterly journal of the Geological Society of London.
v.37 (1881), Page 482 (1881)
Smithsonian Libraries
BHL Page 43971752
Keywords
geology silurian Silurian Plant remains Geology plant remains remains silurian plant remains cell idek worm balls circles cells tube sameaslastone rectangle split thin worm tube dots circles cells rock shell fossil inscription tubes seaweed