1925 



TYPE AMMONITES— VI 



DCVa 



Fig- 4 



Fig. 3 



Fig. I 



Fig. 2 



Ammonites triplex ; W. H. Smyth, 1851, Fig. Spec. 

 iEdes Hartwellianae, p. 24 ; " Brick Pit, Field 151 

 " Hartwell Estate, Bucks ; rubble above clay " (Lee's Catalog) 

 Buff stone with small lydites ; Bucks County Mus., Lee Coll., 2060/H 



LYDISTRATITES BIFORMIS, nov. 

 Paravirgatitan, lyditicus ; Holotype. See CCCLIII 



