Ammonites polyopsis Dujardin, 1837 and the Cretaceous ammonite family Placenticeratidae Hyatt, 1900
Kennedy, W. J. (William James) Wright, C. W. (Claud William)
Article
1983
Palaeontology
26
855--873
BioStor
English
London, Palaeontological Association, 1957-
BioStor: https://biostor.org/reference/165557