Subject ASC0001i6o
The Quarterly journal of the Geological Society of London.
v.13 (1857), Page 125 (1857)
Smithsonian Libraries
BHL Page 35315502
Keywords
geology fossil fish shark Barton Clay London Paris Belgium ivy-leaved duckweed duckweed water plants range of spiecies reptilia pisces London area Paris area Belgian area barton clay london paris belgium Barton clay Bartonclay Barton Clay Pisces Reptilia Belian Lowersands Londonclay Bracklesham SablesdeBracheux Calcairegrossier LitsCoquilliers SablesMoyens SystemeBruxellien SystemLackenien