1928 



TYPE AMMONITES- \ II 



DCCLXXM B 



Cosmoceras parkinsoni ; S. Buckman, 1881, cit. spec. 

 Bradford Abbas, Dorset ; S.B. Coll. 3807 

 S. 89, 34, 26, 41 ; 146, 33*5, 23, 42*5 ; max., with lappet, 147 

 Primary ribs, 47 ; SI. degenerate and degenerating 



DUROTRIGENSIA PARKINSONI, J. Sowerbv sp. 1821 

 Parkinsonian, parkinsoni ; Chorotype. See DCCLXVIII 



