1925 



TYPE AMMONITES— VI 



DCXVI B 



Fig. 1 



Fig. 2 



S.S.B. 



Cardioceras CORDATUM 

 Horton Brickyard, Horton-cum-Studley, Oxfordshire 

 "Oxford Clay"; S.B. Coll. 4443, purch. ; (ES, O), Li, OV 

 S. 16, 44, Z7. 29 ; 33, 43. 32, 30, ribs 26 



CARDIOCERAS COSTELLATUM, nov. 

 Cardioceratan, cardia ; Paratype. Cf. DLXXXVIII 



