Observations on the lithostratigraphy and ammonite succession across the Cenomanian-Turonian boundary in the environs of Le Mans (Sarthe, N.W. France)
- 5 March 1973
- journal article
- Published by Schweizerbart in Newsletters on Stratigraphy
- Vol. 2 (4) , 189-202
- https://doi.org/10.1127/nos/2/1973/189