1922 



TYPE A MMOMTES—^I \ ' 



CCCXXXI 



X I 



j-^j/^ 



" Ammonites koenigi " 



" Gristhorpe, Scarborough, Yorkshire ; Kelloway Rock " 



Geological Survey of England (Hudleston Coll.) 30777 



S. 2b, 34'5, 29, 42 ; ribs 27 ; size 30 mm. 



PROPLANULITES ARCIRUGA, Teisseyre (T.A. Ill, p. 38) 

 ProplanuUtan, fracidus. See CCCXXX 



