1923 



TYPE AMMONITES— IV 



CD 



Fig. la 



Fig. I 



LlSSOCER.\S OOLITHICUM 



Sandford Lane] " near Sherborne, Dorset " ; 'Fossil Bed, middle part] 



(O.J.G.S. XLIX, 1893, 493, 494) ; S.B., 'ex Darell, Coll. 932 



S. 24, 48, 36, 21 ; 51, 46-5, 31, 23 ; max. 77 4- 



LISSOCERAS SEMICOSTULATUM, xov. 

 Sonninian, mollis ; Holotype. Cf. CCCIII 



