4i6 



ME. J. F. JACKSON OX 



[vol. 1 



XXYlll, 



Sa III mato- 

 ceras?] 



Section VIII — The jLyciioy-llED, iizasuked ox a Block: ox the Talus 



AT THE WesTEEX £>'D OF WaTTO' ClIFF, EaST OF ETPESrMOUTn. 



Hemerae. Strata and Fauna. Fe^f inches. 



JDumortieria. A. Traces of blue sand}' ' Upper Lias ' clav. 

 Transitional from 



B. Hard, sandy, ferruginous clay with ochreous veins. 

 Coarsely-ribbed Diimortierice in friable condition ; 

 obscure gastropod-remains, fragments of Iso- 

 crinns sp. 3-5 



Transitional fi'om 



C. "VThitish eurtliy limestone in two irregular la^-ers. 

 A seam of small slender Selemnites sp. 2-5 



Xou -sequence. 



D. Intensely hard, finely laminated, lithographic lime- 

 stone ; the lamiriae are of various shades of pale 

 brown and bluish grey. The lower poition splits 

 readily into thm platy slabs, covered with tine 

 dendrites ; the upper portion is more massive, 

 and breaks with a sub-conchoid al fracture. Many 

 finely - preserved ammonites ; no other fossils 

 observed. I 7-8 



[5323, Alocoli/foceras cf. genua ini (D'Orbigny), i 

 a smooth cast, ornament almost obliterated; 5684, ' 

 FrecJiieJIa atf. suhcarinata (Young & Bird), a 

 brephomorph, beautifully pi-eserved. with white 

 matrix in the body-chamber : this shows the 

 transition from Cymhites to the Faroniceras | 

 stage, but has not got to the FrecJiiella stage of, 

 bisulcate periphery ; 5324,5325a & b, 5680, 5682, ■ 

 costate forms, more than one species, like Ammo- 

 nites rugaUihis Simpson, also like A. midti- 

 foJiatus Simpson, but more costate ; 5325, 5679, 

 56796, costulate to capillate forms, like A. similis 

 Simpson, but thinner ; 5325 c, a micromorph of, 

 presumably, G^rammoceras-striatidnm type.j 



Impersistent earthy parting: non-sequence. 



Intensely hard, greyish - yellow, non -laminated, 

 sandy limestone. Xo recognizable fossils, except 

 fragments of a small i?7/y«c7iO//f??« sp. 5-6 



Apparently transitional fi-om 



Massive cream-coloured limestone. FeJemnites sp. 4-5 



Apparently transitional fi"om j 



Cream-coloured shelly limestone, crowded with | 

 Gi'ammoceras sp. [5326, G. aif. fJiouarsense], \ 

 especially at the base. Many minute gastropoda: I 

 AiiiberJet/a, Ataphrus, Cerithium, Cryptcenia,\ 

 TroeTius, etc. ; FhyncTionella sp.. Isocrimcs sp., • 

 echinoid radiole. ' 3-4 



Apparently transitional fi"om 

 I D4. Pale cream-coloured laminated limestone. 3 



I Distinct parting. 



I U5. Compact, cream-coloured, laminated limestone, 

 somewhat false-bedded on a minute scale. 

 j TvagVLieiit oi IS'au.til us s'p., Ataphrus sp. 2-10 



Besting unconforjnably upon 

 \Thorncomhi- U. Hard yellowish-brown ferruginous rock of ' marl- 

 ensis^ I stone ' type, almost identical in lithic characters 



with the T.-thorncombiensis Bed of the Western 

 Cliffs. Fhpnchonella sp. Tetrarhynchia fhorn- 

 comhiensis common; Felemnites ^-p.: fi-agment 

 oflAYgeSai'poce'ras on the top of the bed, but 

 probably not belonging to it. 0-10 



Very irregular base. 

 Falciferum ? M r Massive, pinkish and yellow mottled limestone. 8-9 



Very obscure parting. [ 



^Ei ? Similar, but harder limestone. Seen to I 9-10 



r»3. 



