1925 



TYPE AMMONITES— VI 



DCXVIA 



Fig. I 



Fig. 2 



S.S.B. 



Cardioceras CORDATUM 

 Horton Brickyard, Horton-cum-Studley, Oxfordshire 

 "Oxford Clay"; S.B. Coll. 4442, purch. ; (ES, O), Li, OV 

 S. 33. 40, 30, 30 ; 49. 43. 32, 30 ; ribs 28 



CARDIOCERAS COSTELLATUM, NOV. 

 Cardioceratan, cardia ; Holotype. Cf. DLXXXVIII 



