154 



MR. S. S. BUCK5IAN OX 



[June i 913, 



Athzeta zone. 



Greyish, calcareous, oolitic. 



Peltoceras subtense Bean sp. 

 P. bifidum (?) Quenstedt sp. 



Bonarellia sp. = bipartita Quenstedt, 

 'Amin. Schwab. Jura' 1886-87, 

 pi. lxxxv, fig. 3. 



Brown, calcareous, oolitic ; mixed with irony sand, 

 much iron-stained. 



Matrix and fossils 



Peltoceras athleta Phillips sp. 



P. subtense Bean sp. 



P. reversum Simpson-Leckenby sp. 



P. propinquum (?) Waagen. 



P. cf. chauvinianum d'Orbigny sp. 



P. murrayanum(?) Simpson-Leckenby 



sp. 

 Quenstedtoceras aff. gregarium Bean- 



Leckenby sp. 

 Q. longcevum Bean sp. 

 Cosmoceras gemmatum Phillips sp. 



Cosmoceras Jason (?) Reinecke sp.= 



elizabethcs Pratt sp., Ann. Mag. Nat. 



Hist. vol. viii (1842) pi. iii, fig. 3 (cf. 



C.pollucinum Teisseyre, ' Cephalop. 



d. Ornatenthone in Bjasan' Sitzb. k. 



Akad.Wissensch.Wien,vol.lxxxviii, 



1883, pi. v, fig. 30). 

 C. jason spinosum Quenstedt sp., 



'Amm. Schwab. Jura' 1886-87, 



pi. lxxxiii, fig. 28. 

 C. elizabethcs (?) Pratt sp. op. cit. 1842, 



pi. iii, fig. 4(cf. C. pollu.v Teisseyre, 



op. cit. 1883, pi. iv, fig. 27). 



Peltoceras cf, propinquum Waagen. Cosmoceras duncani J. Sowerby sp. 



Lunuloceras aplanatum Tsytovitch sp. SiemiradzJda aff. comptoni Pratt sp. 

 L. lahuseni Tsytovitch sp. 



The species below the line show a grey sandstone matrix, which is 

 presumably only a less decomposed condition of the bed. C. duncani 

 shows the grey sandstone matrix in the chambers, but the irony sand with 

 oolitic grains outside. 



Orxatvm zone. 



Grey or yellowish grey, with many coarse grains which fall out readily. 



Cosmoceras compressum Quenstedt sp. | Cosmoceras cf. transitionis Nikitin. 

 C rotundurn Quenstedt sp. I Quenstedtoceras placenta Simpson- 



C. ornatum (?) Nikitin. Leckenby sp. 



Kcexigi ZONE. 



Light brown, calcareous, with many small oolitic grains. 



Proplanulites Jcoenigi J. Sowerby sp. 



Pr. arciruga Teisseyre. 



Cadoceras (?) sp. cf. chrysoolithicum 



Waagen sp. 

 C.grewingki Pompeckj. 

 C. sp. nov. = long cecum Bean sp. pars. 



Phlycticeras hyperbolimim Simpson- 

 Leckenby sp. 



Kepplerites toricellii Oppel sp. 



K. s\).=gowerianum Phillips sp. non 

 Sowerby. 



Cadoceras sublceve J. Sowerby sp., in a loose sandy matrix. 



The following Yorkshire species, which for various reasons have 

 not yet been thoroughly studied, are tentatively assigned as 

 under : — 



