﻿235 



GEOLOGICAL DISTRIBUTION OF BRITISH TRIGOXLE. 



CRETACEOUS SYSTEM. 



MxDDLE Neocomax Fobmatiox. 



PAGE 



Clavellat^. 

 Quadrate . 



ScAPHOrDES. 

 QUADKAli... 



/- T. ingen?, lye. PI. riii, figs. 1, 2 a. '2 b, 3; pi. rsxvi, figs. 5, 6 (Tealbv and 



\ W. Norfolk) ..... 24, 207 



V. T. Keepingi, lye. PL ott, figs. 1, 2 (Tealbj- and W. Norfolk) 



f T. nodosa. Sou:, {ear.) Pi. ixt, fig. 2 (Tealby) 



(. T. Tealbvensis, Lye. PI. xxriii, fig. 7 (Tealbv) 



( T. esaltota. Lye. PI. mTiii, fig. 2 (W. Norfolk) 



i T. scapha, Ag. PI. nrriii, fig. 6 (W. Norfolk) 



196 

 106 

 114 

 184 

 1S3 



SCABRJ:. 



BlSSIFEBi . 



Upper Neocoiqax Fokicatiox. 



...T. nodosa, So«. PL xxiT, figs. 1, la, 2, 3 {ear. Orbignyana) ; pi. rLrrii, 



figs. 5, 5 a, 6 

 rX. caadaU, Ag. PI. rrri, figs. 5, 6, 6 ct, 6 S, 7 



T. EtheridgeL Lye. PL xrrii, figs. 1, 1 o, 1 6, 2, 3, 3 o . 

 , T. omaU, d'Orb. PL xxIt, figs. 6, 7 



I T. Upwarensis, Lye. PL xsiii. figs. S, 9 ; pi. xxsis, fig. 4 (Up ware) 

 Lt. Tectiana, Lye. PL uiv, figs. 10, 10 a, 10 5, 11 : pi. xir, fig. 7 

 ...T.parinata, Ag. PL hit, figs. 4, 4 a, 5, 5 a, 6, 6 a 



106 

 129 

 127 

 139 

 143 

 123 

 179 



QUADBAI-E 



SCABR£. 



B t.tBB V. 



QUAOKAT.£. 



SCABE^. 



GREEX SANDS OF BLACKDOWN AND H.ALDON. 



fX. dadalea. Pari- (BlackdoTn). PL niii, figs. 2, 3; pi. nii, figs. 7, 8; 



J pi. iiTiii, fig. 8 . . . .100 



I — rar. confosa. Lye. (Little Haldon). PL xxiii, fig. 1 102, 211 



\T. speetAbilis, Sow. PL xiri, figs. 1, 2, 3, 4 . . . . 112 



rT. aliformis, Fark. PL isr, figs. 3, 3 a, 4, 4 a ; pi. xxTiii, figs. 5, 5 a 116 



I T. Fittoni, Desk. PL -rriii, figs. 4, 4 a, 4 6, 5 (Gault) . . . 132 



-{ X. scabricob. Lye. PL xrrii, figs. 4, 5, 5 a, 5 i . . 130 



X. spinosa. Pari. P. rrir, figs. S, 9 . .136 



'^ X. Ticarvana, Zyc. PL niii, fig. 7 . . 141,203 

 /- T. exccntrica. Park. PL xs, figs. 5, 6 ; pi. XTJi, figs. 5, 5 o ; pi. xxviii, figs. 6, 



] 6 a, 9, 10 . . . . . .94 



^ X. Isrioscola, Lye. PL xxiL fig. 6 . . . .96 



UPPER GREEN SANDS AND CHLORITIC MARLS. 



Species donbtfol. Donscombe Clife (Meyer). 



X. aliformis (tor. attenuata), iyc. PL iiv, figs. 5, 6 . . .118 



X. Archiaciana, d'Orb. ? PL xxr, fig, 10 . . . 140, 202 



X. costigera, Xyc. PL xL fig- 17 . • . . 205 



X. crenulifera. Lye. PL il, fig«. 1, 1 a, 1 6, 7, 9 o, 9 6 . . .189 



X. Conningtoni, Lye. PL xziii, fig. 4 . . . . 146 



X. Mej-erL iyf. PL rxiii, fig. 6 ; pL ili, figs, l.i, 16 . . 125 



\ X. pennaU, Scne. PL rriv, fi^. 4, 5 ; pL ixxrii, figs. 4, 4 a . . 133 



X. ecabricola. Lye. PL nrii, figs. 4, 5, 5 a, 5 6 . . 1 30 



201 



T. spinosa. Park. PL xxiii, fig. 10 (rar. snbovau) ; pL xxviii, figs 



1.2 



