Volume 42 



Hoepen, Egbert C. N. van 



Die gekielde amraoniete van die Suid-Afrikaanae Gault. 



1941 I. Dipoloceratidae, Cechenooeratidaa en Drepanooeratidae. 1 



1942 II. Dropanocoratidae, Pervinquieridae, Arestocoratidae, 

 Cainooeratidae. 2 



1944 III* Pervinquieridae en Branoooeratidae. 3 



1945 Monofilie of polifilie in verband met ammonitie van die 

 Suid-Afrikaanse Gault. 4 







Die gekielde amr.oniete van die Suid-Afrikaanse Gault. 



1946 IV. Cechenoceratidae, Dipolocoratidae, Drepanoceratidae, 



Are stoceratidae . 5 



1946 V. Monophyletism or polyphyletism in connection with 



ammonites of the South African Gault* 6 



i * 



1955 New and little known ammonites from the Albian of Zululand. 7 

 1955 Turonian-Coniacian ammonites from Zululand. 8 



1955 A new family of keeled ammonites from the Albian of Zululand. 9 



Housa, Vaclav 



1965 Sexual dimorphism and the system of Jurassic and Cretaceous 



Ammonoidea (preliminary note)* 10 



House, Michael R. 



1956 Devonian goniatites from North Cornwall. 11 



1956 The Fuller's Earth outcrop in South Dorset* 12 



1957 Discovery of ammonoids of the Upper Devonian Hocklumoria 



Zone in North Cornwall. 13 



