TRANSACTIONS OF SECTION C. 611 



monensis, Rhizodopsis sauroides. Among these Macrochedina was fairly 

 abundant. 



The next bed occurred 564 feet 1 inch above the Barnsley Coal. The material 

 was dark-blue bind with ironstone and small cook-balls, and the following forms 

 were present : Lingula mytiloides, Orbiculoidea nitida, Myalina compressa, 

 Straparollus sp., Euphemus urei, Naticopsis sp., Plcuronautilus costatus, Solcno- 

 cheilus, cyclostoma, Acanthodes, Cladodus, Calacanthus, Megolichthys, Platy- 

 somus, Elonichthys or Acrolepis, Rhizodopsis. Among these Straparollus is new 

 to the Middle Coal Measures. 



The next marine band, 20 feet § inch thick, lies 708 feet 10^ inches above the 

 Barnsley Coal, the section being 19 feet ^ inch of dark greyish-blue shale with 

 hard cank-balls, resting on 12 inches of argillaceous limestone. It contains an 

 abundant fauna, including twenty-six genera and thirty-five species of inverte- 

 brates, all marine forms. Ghonetes laguessiana, Lingula mytiloides, Orbicu- 

 loidea nitida, Productus anthrax, Ctenodonta Icevirostris, Myalina compressa, 

 Nucula ozqualis, N. gibbosa, N. luciniformis, Nuculana acuta, Posidoniella 

 lavis, P. sulcata, Pseudamusium anisotum, P. fibrillosuvi, Pterinopecten papy- 

 raceus, Scaldia carbonaria, Schizodus antiquum, Syncyclonema carboniferum, 

 Euphemus d'orbignyi, E. urei, Loxonema acutum, L. ashtonense, L. sp., 

 Bhaphistoma radians, Bellerophon sp., 1 Dimorphoceras gilbertsoni, Ephippio- 

 ceras clittellarium, Gastrioceras carbonarium, ( ?) Glyphioceras paucilobum, G. 

 phillipsi, G. reticulatum, G. sp., Orthoceras asciculare, O. sulcatum = Koninek- 

 ianum, 0. sp., Plcuronautilus costatus, Acanthodes, Cadacanthus, Elonichthys, 

 Listr acanthus, Megolichthys, Platysomus, Rhizodopsis sauroides. Among these 

 Pseudamusium anisotum has not hitherto been found above the Carboniferous 

 Limestone. Among the fish-remains Listracanthus .should be noted. 



The highest bed occurs 1,000 feet below the summit of the Middle Coal 

 Measures, and 1,244^ feet above the Barnsley Coal. It. is 10 feet 11 inches thick, 

 consisting of grey bind with ironstone bands, of greasy appearance. The fauna 

 is poor, but goniatites are not uncommon. Lingula mytiloides, Orbiculoidea 

 nitida, Myalina compressa, Nuculana acuta, 1 Bellerophon sp., Glyphioceras 

 phillipsi, G. sp., Orthoceras sp., Listracanthus, Megolichthys, Rhadinichthys 

 monensis. Among the fish-remains Listracanthus is to be recorded. 



The writer is indebted to Dr. Wheelton Hind, F.G.S., and Dr. A. Smith 

 Woodward, F.R.S., for examining and naming the fossils. 



5. The Geology of the Titter stone Glee Hills. 

 By E. B. L. Dixon, _B.Sc, A.R.C.S., F.G.S. 



The following is a preliminary account of the rocks overlying the Lower Old 

 Red Sandstone of the Titterstone Clee Hills, Shropshire : — 



Sedimentary Series ... 4. Coal-Measures. 



3. Millstone Grit (so-called). 



2. Carboniferous Limestone Series. 



1. Upper Old Red Sandstone. 

 Intrusive rocks .... Dolerite. 



(1) The Upper Old Red Sandstone, consisting largely of sandy and pebbly 

 beds, is fixed in age by its fish-fauna, which has long been known. Its junction 

 with the underlying Lower Old Red marls is perfectly sharp and probably marks 

 an unconformity. Upward, however, the group passes into 



(2) The Carboniferous Limestone Series. The correlation of the local develop- 

 ment with the Avonian of other districts has been sketched by Dr. Vaughan, 1 

 whose chief ('(inclusion, that the highest recognisable horizon is little, if at all, 

 higher than the upper part of the Zaphrentis Zone, holds good throughout the 

 outcrops. The part of the series which overlies this horizon is so thin that 

 it is difficult to believe that the top is much younger, even after making allow- 

 ance for the fact that it consists of such shallow-water deposits that its rale 

 of deposition must have been conditioned by the rate of subsidence of the sea- 



1 Quart. Journ. Geol. Sue, vol. lxi., 1905, pp. 252 — 4. 



