revised ammonite zonation of the Boreal Oxfordian and its application in northeast Greenland
By: [by] Richard M. Sykes and Finn Surlyk.
Contributors: Surlyk, Finn.
Publisher: Lethaia
Published: 1976
Place of publication: Oslo
Language: eng
Notes: Offprint from Lethaia, vol.9, pp.421 - 436.