154 



BRITISH PALAEOZOIC PHYLLOCARIDA. 



The fossiliferous horizon in the quarry is not far below the base of the Millstone- 

 grit at this place. 



In a letter dated December 4th, 1897, Dr. W. Hind has favoured us with the 

 following section of the strata shown in this quarry : 



I 



A. Shales with marine fauna and Dithyrocaris. 



* Indicates the horizon at which D. tesluiliitea was found. 



B. Shales with Glyphoceras spirale. 



c. Quartzose ganuister-like sandstone with plant-remains. 



In Dr. W. Hind's opinion these do not belong to the so-called Yoredale series, 

 and he describes them in detail thus : 



The quarry shows the following strata downwards : 



A. Dark shales, with thin bands of concretionary limestone or seams of 

 calcareous nodules, all more or less fossiliferous ; with (Jh/phoceras diade)aa, and 

 the fauna noted in Dr. W. Hind's Monograph, and in the ' Geol. Mag.,' 1897, 

 pages 207, 208 : 15'. 



It was in the lower part of these shales that the Dithyrocaris [D. testudinea) 

 was found, together with Ceratiocaris Ortonensis. 



B. Thin carbonaceous shales with Gli/phoceras spirale, Posidoniella Isevis, 

 Productus cora, and Sfreptorhijnchns erenistrin : V. 



c. Hard gannister-like quartzite, with shale-partings and plant-remains : 20'. 

 Loamy shale : 4'. Hard compact fine-grained quartzite : 4'. Dark shales a few 

 feet to the floor. 



At page 72 of the ' Mem. Geol. Survey : Country round Stockport, &c.,' 1866, 

 the strata seen in this quarry at a, b, c, are thus described : 



In a quarry by the road-side, south-west of Holly "Wood, we have — 



Dark shale, with fossil-beariug nodules of limestones : 15'. Hard, dark-grey 

 quartz rock (gaunister), with thin jJartings of dark shale, containing layers of 

 coal, from one-eighth to one-fourth of an inch thick ; large Stigmaria with 

 rootlets : 20'. 



The following is a section of the Lower Carboniferous strata in Cheshire, where 

 the roadside quarry, south-west of Holly Wood, referred to by Dr. W. Hind, is 

 situated. 



