470 TEOF. E. J. GAEWOOD 0^^ THE LOAVEE CAEBONIFEEOUS [DcC. 1912^ 



Caninia ci/Undrica (Scouler). Eare. 

 DipTiyphyllum cf. lateseptatum IM'Cot. 

 Lithostrotion cf. marfhii Ed. & H. 

 LophcqjhyUam ashfcUense, sji. nov. 

 Byringopora genicv.lata Pbill. 

 Syringopora cUsUois Fisclier. 

 Zaplirentis eniiiskiUeni Ed. k. H. and 

 variants. 



Platycrinns sp. 



Btenopjlintgyaa gen. et sp. nov. Munro. 



Atkyris exjxoisa (Pbill.). 

 Athyris cL planosulcata (PhilL). 

 Choncies pwpiUonacea Phill. 

 Diela)^ma mcculv.s (]\Iart.). 

 Productiis corrugato-hemupTicricui 



Yauglian. 

 Productus laciniatus M'Coy. 

 Frodtictus productifs Mart. 

 Producius pyHdiformis de Kon. 

 P'ugnax cf. pleurodon (PhilL). 

 Beticularia aff. Iinecda (Mart.). 

 Schcllwienella. sp. 

 Sernimda ficoidea Yaughan. 

 Martinia cf. ovaU^ (Phill.). 



Allorisma sulcatum Fleni. 



Aviciclopecten dismnilis Flem. 



Conocardium cdiforme Sby. 

 1 Cucidlcea tenuistria M 'Coy. 

 1 Myalina cra^sa Fleni. 

 1 Myalina vernctnli M'Coy. 

 ^ I^^ucula gibhosa Fleni. 



Sanguinolites clavus M'Coy. 



SanguinoUtcs f^uhcarinatus M'Coy. 



BcUeropkon coskdus Sby. Very abun- 

 dant. 



Bellerophon sidcaius Sby. 

 1 BeUeraphon {Bucania) cormi-arieti& 



Sby. 

 ^ Cap)ulus trdohatus (Phill.). 

 1 Euoraphal'us crofalo.domatus M'Coy. 



Euomp/ialus 2)e')7taugido/us Sby. 

 1 Euoraphalu.^ {Bhymatifer) ^J7/_^///s 

 Phill. 



Straparodus acv.tus Sby. 

 1 Murchisonia Jcendalemsh. 



Naticopsis ampliaia (Phill.). 



Katicopsh elliptica (Pbill.). 



Xaficopfis dongata (Phill.). 



Pladyschisma helicoides (Sby.). 



Schizostoma catUIus (Mart.). 



Psammodus rugosus Ag. 

 Psephodus mogmis M'Coy. 



The geographical distribution in the AVestern Districts 

 is shown in the accompanying maps. In the Eavenstonedale 

 District, the upper portion of the sub-zone is represented by the 

 Ashfell Sandstone ; while, in the Shap District, the whole of the 

 sub-zone is included in the Orton Sandstone. 



(/) The Cyrtina-carbonaria Sub-zone. 



This sub-zone forms a well-marked horizon in the type dis- 

 tricts. It is usually crowded with specimens of the index-fossil 

 and with small gastropods, together with species of Lithostrotion 

 and Syrinrjopora. Its average thickness cannot exceed 50 feet. 

 It is most fossiliferous towards its base, and passes up into the 

 overlying NematopliylJum-minus Beds. Though Cyrtina carhonaria 

 is especially abundant at this horizon, it is not absolutely con- 

 fined to it everywhere. In the Arnside and Grange districts a 

 few specimens (possibly referable to this species) occur at a much 

 lower horizon, namely, in the upper portion of the Athyris- 

 glabristria Zone, while in the Eavenstonedale District individual 

 specimens persist into the base of the Lower DihunopliyUum Zone. 

 In both these cases, however, they are associated with distinct 

 faunas, and do not occur in anything like the same abundance 

 as in this sub-zone. 



Lithology. — The rock is a somewhat compact and gritty grey 

 1 Preserved in Kendal Musetim. 



