The Cai-hon{ferons Skcccsswh below the Coal-Measures. 393 



Lit /i OS f ration Martini, E. & H. Productus giganteus, Mart, i 



Syringiipora sp. Spirifer sp. 



Archceocidaris . (Spiue.) Euonqjhalus sp. 

 Talceechinm. (Plates.) 



(viii) At the top of the hill near Gwaenysgor (lat. 53° 19' 25" N., 

 long. 3° 23' 20" W.) there is a disused quarry, containing a lime- 

 kiln, where the beds are found dipping north-east at 15°, which 

 yielded the following fauna: — 



Dibunophyllum sp. (Not common.) P. hemisphericus, J. Sow. 



JAthostrotion Martini, E. & H. P. margaritaceus, Phill. 



Zaphrentid Coral. P. punctatus (Mart.). 



Criuoids. P. seimreticularia (Mart.). 



Athyris planostdcata, Phill. Pugnax acuminata (Mart.). 



Productus aculeatus (Mart.), Schizophoria restipinata (Mart.). 



jP., sp. nov. Spirifer dnpUeicostatus {?) . (Broad-ribbed 

 P. giganteus (Mart.). (Eather rare;) form with angular ribs.) 



Cantarotocchia pleurodon (Phill.). S. striatus (Mart.). 



productus giganteus (Mart.) (var. Edel- Spirifertna cristata, Schloth. 



burgensis), Phill. Pilcopds sp. 



(ix) In a small quarry on the left-hand side of the road leading 

 from Gwaenysgor to Teilia Farm we collected — 



Cyathnxonia. Spirifer a,&. bisulcatus, Sovf. (Characteristic 



Crinoids. of Dj zone ia Bristol area.) 



Producttis giganteus (Mart.). Martinia glabra (Mai't.). 



Pagnax pugnus (Mart.). Spirifer plaidcostutus (variant). ^ 



S. sp. (Angular-ribbed form.) 



(x) An exposure at the foot of the hill (on the 200 feet contour- 

 line), opposite the Nant Hotel, Prestatyn, and east of the road from 

 that place to Gwaenysgor, yielded — 



? Cyathaxonia sp. Productus fimbriatus. Sow. 



Dibunophyllum sp. P. semireticulata-longispimts. 



Choietes papilionacea, Phill. Martinia glabra (Mart.). 



A little further to the south-east, in the wood, may be seen Ihe 

 upper beds of limestone, with Productus giganteus (Mart.) fairly 

 common. 



(xi) In a quarry at Pentre, near Gronant (see infra, Part II, 

 paragraph xxxv), there is a magnificent section in the chert beds, 

 of which there is not less than 70 feet exposed. They are largely 

 worked for ' setts,' used in the grinding of china-stone, etc., for the 

 manufacture of pottery. In these cherts we observed — 



Productus longispinus, Sow. 



P. punctatus (Mart.). 



P. sp. (Very spinose.) 



(xii) In an old, disused limestone quarry north of Axton Mine we 

 noted — 



Fenestella. P. elegans, 



Athyris planosulcafa, Vhill. P. punctatus (Jsl^xi.). 



melasma hastata (Sow.). P. semireticulatus (Mart.). 



Martinia glabra (Mart.). Schizophoria resupinata (Mart.). 



Productus giganteus (Mart.). Spirifer sp. ("With broad, angular folds.) 



This, probably, is the quarry referred to by G. H. Morton.^ 



1 A similar variety occurs at Curkeen according to Dr. A. Yaughan. 



2 G. H. Morton: Proc. Liverpool Geol. Soc, vol. v, p. 181. 



