A. B. HoTWOod — Upper Trias of Leicestershire. 209 



Lane Road 2 feet of shales were found in a well-section under 8 feet 

 of soil and drift, and they outcrop in the ditch on the west side. 



There has been sorae discrepancy as to who first discovered the 

 Rhsetic beds at Leicester. Mr. J. J. H. Teall, F.R.S., reported their 

 occurrence here in 1874, but they were not then actually recorded. 

 Later on Mr. "W. J. Harrison described them in 1876 in the Report 

 of the Geological Section to the Leicester Literary and Philosophical 

 Society. 



The section of Rhsetics at the Spinney Hills, now built over, was 

 described by "W. J. Harrison in 1876. Then three brick-pits were 

 situated on this ridge, which forms the Rhaetic escarpment between 

 Humberstone Road and Victoria Park. The valley between has been 

 excavated, and only the Tea-green Marls are visible, but eastward 

 the Rh 88 tics come on again. The floor of the pits was in Red and 

 Blue Keuper Marl (10 feet) with selenite and salt pseudomorphs. 

 He notes the diminished thickness of the red bands at the top of the 

 Keuper. There are about 16 feet of Tea-green Marls below the 

 Rhsetics here, which are black shales about 10 feet thick. The 

 higher beds with a second nodular limestone were noticed in other 

 excavations. 



The section here (Moore's Pit, junction of Wood Hill and Prospect 

 Hill) was : — 



Soil and drift, with flint implements and Eoman ft. in. 

 pottery, etc. ...... 1 



f Nodular band of limestone, with casts of 



Estheria, Avicula contorta .... 6 



Light-coloured shales, with sandy partings, 

 Modiola minima, Avimila contorta, Cardium 

 rhceticuvi ....... 4 



Dark shales, with sandy partings, Ophiolepis 



dai7iesii,Pholidophomsmottiana{ = higginsi) 1 

 Finely laminated black shales, Avicula con- 

 torta, Cardium rhceticiim . . . . 2 



Sandstone = J.a;mMS bed, worm-tracks . . 1 

 Black shales, coarsely laminated . . .26 

 Bone-bed, Gyrolepis, Saurichthys apicalis, 

 Hybodus minor, Ceratodus, Nemacanthus 

 monilifer. Ichthyosaurus, Plesiosaiirus, 

 I. Sargodon tomicus, etc. .... 3 



TT ( Light-buff sandy shales with hard courses, 



KeuBer I bluish nodules on lower part, fish scales . 16 

 ^ ■ ( Eed and Blue Upper Keuper Marl . . . 10 



37 4 



The upper surface of the Red Marl was uneven, hollowed out in 

 long curves. The dip was south-east. The Tea-green Marl was 

 green in parts, with blue nodules in the lower part, fissured, and 

 with conchoidal fracture. Selenite occurs in it, and pseudomorphs of 

 salt crystals, as well as ripple-marks. Fish-scales are numerous. 

 I have examined these, and they are of the Semionotoid type. In 

 the same material Estheria minuta is abundant. Teeth also occur. 

 Mr. Harrison said he found a single insect wing here, but I think 

 this must have been Estheria, as he said it perished on exposure, 

 a feature common to Estheria. The upper surface was uneven. 



DECADE V. — VOL. X. — NO. V. 14 



Lower 

 Ehsetic. 



