cclxii 



INFERIOR OOLITE AMMONITES 



Zonal Ammonites mixed, 7 



Zone, erroneous ideas concerning species in a, 446 ; 

 species of a, not necessarily contemporaneous ; 

 immense time to deposit, 446 ; commune, 

 bifrons, concavum, falciferum, Harpoceras, 

 henleyi, lmmphriesianum, ibex, jamesoni, 

 jurensis Ce), margaritatus, murchisonae, opa- 

 linum (us), parkinsoni, Posidonomya Bronni, 

 sauzei, sowerbvi, spinatum, Stephanoceras, 

 Steplianoccratites, Trigonia navis, torulosus 



Zones, and sub-zones, 2 ; Oppel, 49 ; and beds, 166 ; 



coalesced, 274 

 Zurcher and Zurclieria, 293 

 Zurcheri, Sonninia, and Fontannesia, cxc 

 Zurcheria, p. 293; Suppl., p. cxci ; inconstans, 



parvispinata, pertinax, pugnax, *ubaldi 

 Zurclieria, 287, 314, 436, cci ; Foreign species of, 



described, 298 ; from Haplopleuroceras, 300 ; 



from Sonninia, 314; classification, cxcviii 



1>RJNTED BY ADLARD AND SON, LONDON AND DORKINO. 



