1923 



TYPE AMMONITES— VI 



DCXIX 



Fig- I 



Fig. 2 



^^'^^ ^^ 



Ammonites quadratus, J. Sowerby 

 (1813, M. C. i, 52 ; XVIII, 3) ; V ertehriceras quadratum S.B., 1920, cit. spec. 



T.A. Ill, 17 ; Cowley, near Oxford ; Lower Calc. Grit 

 S.B. Coll. 2779 ; S. 58, 40, 40, 26, ribs 21 ; 96, 36, 31, 32-5 ; ribs 30 



VERTEBRICERAS QUADRATUM, J. Sowerby sp. 

 Cardioceratan, V ertehriceras ; Topotype. See CXCVIII 



