454 Dr. Wheelton Hind 8i John T. Stohhs— 



Higher again in the series a section consisting of laminated dark 

 shales is seen on the eastern side of the Baggilt Old Koad, near the 

 bottom of the valley about f mile from Holywell (lat. 53° 16' 12" N., 

 long. 3° 12' 35" W.). The following famia was collected : — 



Fosidouiella Icevis (Brown). (Very abundaut.) 

 Pteo-iiiopecten carboiiarins, Hiud. 

 P. papijraceiis (Sow.). 



Near the summit of the sharp rise from the bottom of the valley^ 

 200 yards further on the same road from Holywell, there is an 

 exposure of soft black shales, which are rather barren of fossil 

 remains. 



The cutting on the north side of the Glyn Abbot Road 

 (lat. 53° 16' 22" N., long. 3° 12' 20" W.) presents a fairly thick 

 series of soft, pyritous, black shales, which are the highest beds of 

 the Pendleside Series examined in situ by us in this district. A few 

 feet above the level of the road is a band of black limestone about 

 3 inches thick, which in one layer is crowded with a peculiar 

 Prochtctus, which is also found about this horizon at Congleton Edge, 

 Cheshire, and according to Dr. A. Vaughan occurs in stage e of the 

 Bristol area. Concerning Productiis e, Dr. Vaughan reports that it 

 shows effects of convergence with Froductns aff. Cora and P. aff.^ 

 heminphericns and homceomorphy with P. semireticnlafHs. It is a very 

 complex type, and is identical with the most abundant form which 

 is found in the Upper DibunojdiyUum zone and stage t near Wick, East 

 Bristol area. In the above section the shales overlying the thin 

 limestone yielded — 



Lingula mytiloides, Sow. Actinopteria persitlcata, M'Coy, sp. 



Leiopteria hngirostria, Hiud. Glyphiocrras diadcmn, I3erg. 



rosidoniella Ucvisifixovcxi). (Very common.) 0. Fhillipsi, Crick. 



P. minor (Brown). Orthoceras fiteinhaiicri. Sow. 



Fterinopecttit carbonarius, Hind. Keed-like plant-remains. 



P. papyraceiis (Sow.). 



(c) The Millstone Grit. 



This member of the Carboniferous system is represented in North 

 Flint by the massive grit so extensively quarried in the neighbour- 

 hood of Gwespj'r and Tahicre, where its thickness is at least 

 300 feet; it is usually referred to as the Gwespyr Sandstone. 

 There is a small exposure in the road leading from Kelston Farm 

 to the bridoe near the head of Talacre Dingle, whose stream, also, 

 has cut tlirough the same thick sandstone, where it forms steep 

 bank-sides, and gives rise to the dantesque scenery for which the 

 dingle is well known. At the top end of the smaller lake which 

 the stream of the Dingle enters, there is a small exposure of 

 ' crowstoues.' At the village of Gwespyr the bedding-planes of 

 the large blocks of grit obtained from the quarries are marked by 

 abundant debris of leaves and stems of plants ; iStigmaria Jicoides 

 (Sternb.) was collected from one of these layers. 



Reference has been made {ante, p. 446) to the representative of the 

 Gwespyr Sandstone near Berwig station, the most soutlierly point 

 at which any representative of the Millstone Grit appears in force. 



