1864.] TATE CRETACEOrS ROCKS OF IRELAND. 



Formations in France, England, and Ireland. 



35 



Ireland. 



Upper part of White Limestone ? 



Upper Chalk. 



White 1 E.hynchoiiellaoctoplicata,Terehratiilacarnea, 

 Lime- > Ananchytes ovatus, Belenuiitella mucro- 

 stone. ) nata, Holaster pilula. 



Spougarian I Ventriculites radiatus, Etheridgia mira- 

 Zone. I hills, Cephalites. 



Zone of Ananchytes gibbus. — Echinoconus conicus. 



Absent. 



Hibernian 

 Greensand. 



Absent. 



Zone of 

 Exogyra 

 columba. 



'Lioceramus striatus, Corax falcatus, Tri- 

 gonia Daedalea, Ammonites Lewesiensis, 

 Ptychodus mammillaris, AnatinaRoyana; 

 Exogp'a laciniata. 



"I Zone of 

 Inoceranius 

 Crispi. 



( Pleurotomaria perspectiva, Ostrea fla- 

 ) helliformis, O. canaliculata, Cato- 





pygus colmnharius, Orbitolina con- 

 cava, Cidaris vesiculosa. 



y o [Exogyi'a haliotoidea, Pecten aequicos- 



ZiOne 01 \ i^i^^ Ditrupa deformis, Micraster di- 



Ostrea 

 caj-inata. 



Zone of 



Exogyra 



conica. 



rupa 

 i stinctus, Discoidea suhuculus, Micra- 

 ( bacia coronula. 



i Pecten asper, P. quinquecostatus, P, Du- 

 templei, Myacites mandibula, Ammo- 

 nites varians. 



Hebert ; those of the Turonien and C6nomanien are M. Triger's. 



d2 



