ITable Y. — Raasatax 



SCOTLAXD AXD 

 Strata. 



YOEKSHIRE,- 



about 85 feet. 



Beds 13-16 with 

 Derocerates. 



about 10 feet. 



lavffe 



Bed 18. 'The Upper Coney- 

 hearei bed ' with IE. apla- 

 natum. 



Bed 20. Shale with Echio- 

 ceras maedonnellii. 



Absent. 



The tvpe of Am. miles 

 caine froni Whitby.] 



The type of Am. armatus 

 came from Whitb^'.] 



jed 23. Amm. of suh- 

 pi anicosta ty^e. Dero- 

 ceras ohsoletum (Blake) 

 =^Am. densinodus anctt. 

 Deroceras nodohlongum. 



3ed 23. 1 ^ A. densinodtts 

 1 [ohsoletus] is plentiful 

 jiu a band about 2 feet 

 labove [J. raricostatns] ' 

 Tate & Blake, p. 77- 



'Ai'mattts zone. A. den, 

 nodns (several spp.), . 

 muticus, A . subplm 

 casta, common.' 



Maricostatus zone. 

 densinodus, A. ra} 

 costatus.' 



; to be published by the Geological Survey. The 

 Scottish Survey in ascending the Allt Fearns Val 

 Yorkshire Type Ammonites ' ii (1914) p. 96 d. 

 urv. 1915, p. 70. 

 a. S. vol. Iv (1899) p. 71. 

 and personal observations. 

 'V (1914) p. 321, and see remarks, Table III, footn 

 5outh Wales Line ' Q. J. G. S. vol. Iviii (1902) p 



