RAWLINSON NEW RED SANDSTONE FOOTPRINTS. 37 



Cephalopoda, 



Ammonites armatus, Sow, Belemnites ; 2 species. 

 ; 2 new species. 



Serpula ; 2 species. 



Fragments. 



Annelida. 

 Crustacea. 



I beg to express my sincere thanks to the Rev. P. B. Brodie, 

 H. E. Strickland, Esq., and Dr. Wright, for the kind assistance they 

 have afforded me in naming the fossils, as well as for other infor- 

 mation. 



On Foot-tracks found in the New Red Sandstone at Lymm, 

 Cheshire. By Robert Rawlinson, Esq., Civil Engineer. 



[Communicated by the Eight Hon. the Earl of Ellesmere, F.G.S.] 

 (Read June 16, 1852*.) 



The quarries from which these footsteps were obtained are opened 

 in an elevated ridge of land near Lymm, half-way between the towns 

 of Altringham and Warrington, on the south side of the Bridgewater 

 Canal, and about one mile distant from itf . The ridge runs nearly 

 due east and west, and is about 200 feet above the level of the 

 sea. This ridge and a parallel one on the north of the same ele- 

 vation form the boundary of the valley of the Rivers Mersey and 

 Irwell, and by skirting this valley the Bridgewater Canal obtains its 

 level, crossing both rivers by aqueducts at Barton and at Stretford. 



The quarries now worked are three in number, lying in a line 

 nearly due east and west, and are opened at intervals of about half a 

 mile from each other. They are worked to a depth of about 23 feet, 

 and the following is the order of stratification in all, from above 

 downwards : — 



Feet. 



Soil, from 9 inches to 1 



Red marly shale 5 



Light blue and yellow shale 9 



Red rock, in parallel beds, varying 1 o J The footsteps are found 



from 3 to 12 inches in thickness J \ in these beds only. 



23 



* For the other papers read at this evening's meeting, see Quart. Journ. Geol. 

 Soc. vol. viii. p. 381 et seq. 



t A cast of a slab with foot-prints now at Worsley Hall has been presented to 

 the Society by the Earl of Ellesmere. Prof. Owen has examined the slab, and 

 reports that there are four prints of the hind-feet of the Cheirotherium Kaupii, 

 and that the fore-foot has been so lightly impressed that the ball of the foot only 

 has left its mark, without the toes touching or sinking in the bed. The hind 

 prints, he adds, are unusually well and regularly impressed. — [J. C. M. Sec. G.S.] 



