Vol. 65.] CARBONLFEROTTS LI3IESTONE OF COUNTY CLARE. 559 



(B) Barony of Upper Tulla. 



Lower Limestone Shales (K — ZJ and Lower Limestone 

 (Z„ — y). — These beds, when followed northwards from the Gourna 

 River along the foot of the Slieve Bemagh Mountains, are found' to 

 be everywhere covered by Drift : the only exposure being that of 

 the Anamullaghaun River, between Bodyke and Tomgraney. This 

 section, though fully described in the Irish Geological Survey Memoir 

 (Explanation of Sheet 133), is now almost entirely 'overgrown, 

 and the junction with the Old Red Sandstone cannot be accu- 

 rately determined. The following fossils were obtained from this 

 locality :- — Spirifer aff. clathratus, Rliipidomella michelini, OrtJiotetes 

 crenistria, Prodnctus cf. p>ushd°sus, and Zaplirentis omaliusi, var. 

 densa. These basement-beds are again seen south of the Roman 

 Catholic chapel at Tomgraney, and their passage into the Lower 

 Limestone is well shown, tbe lowest beds of the latter forming a 

 conspicuous rocky knoll in the centre of the village. 



Lower Massive or Fenestella Limestone (C).— Most of the 

 country to the west of Bodyke is covered by esker-like mounds 

 of Drift ; but several isolated exposures are met with along the 

 road to Tulla, which is built on the highest point of the central 

 limestone plain. In the neighbourhood of this village the beds 

 form extensive tracts of bare rock, and are quarried for road- 

 metal. Between Tulla and Milltown Mine, which is situated on 

 the junction between the stratified and the massive limestones, the 

 rocks everywhere abound in fossils, the following being of common 

 occurrence : — Athyris aff. glabristria, Dielasma hastatum, Productus 

 aff. quincuncialis, Fuomphalus pentangulatus, Vestinautilus carini- 

 fer, Trigonoceras paradoxicum, and Fenestella multiporata. 



Upper Limestone, base (SJ. — The junction of the basement 

 eherty beds of this zone with the mottled limestones below is well 

 seen near Dangan Villa, north-west of Lough Cullaunyheeda, the 

 beds having an average dip of 5° to the south-east. The intervening 

 dolomite is also exposed, and can be traced almost continuously 

 westwards to Ballyhickey Mine. The lowest beds are dark-grey, 

 compact, erinoidal limestones with very few fossils ; Lithostrotion 

 martini enters at the base, and is associated with a large Davies- 

 iella in the form of hollow casts. 



(C) Baronies of Upper Bunratty and Islands. 



The southern part of this district is occupied by Upper Lime- 

 stone, forming the central core of the great east-to-west syncline, 

 which is for the most part obscured by Drift and patches of bog. 



Q. J. G. S. No. 260. 2 q 



