A. R. Horwood — Upper Trias of Leicestershire. 213 



that I would draw the line between the Lower and Upper Khgetic ", 

 that is, the second limestone band. But in the section the line is 

 drawn 9ft. Sin. above this bed. He reiterates the statement that 

 the Lower Khaetics here are characterized by absence of hard bands. 

 My own examination resulted in the discovery of several hard but 

 thin beds of gritty or pyritic sandstone. The Upper Limestone is 

 compared by Richardson to bed 9 at Langport and elsewhere. He 

 thinks the Ophiolepis damesii bed should be 2-3 feet below the Lower 

 llhsetic bed. There are two horizons for it at "Wigston, as will be 

 seen. He does not credit the record of Ustheria in these limestone 

 beds by Browne, but it must be remembei'ed Harrison found them on 

 the outside of the same beds. He draws attention to the wrong- 

 correlation between the Ostrea bed and the "White Lias. If the 

 lower part of the compound bed is equivalent to Gotham Marble, then 

 the top is the Ostrea bed, Insect and Crustacean bed or White Lias 

 of Mid- Somerset, but he thinks the compound bed is equivalent to 

 the Pseudomonotis bed of Garden Cliff. 



My own examination of the pit is summarized in the following 

 section. The palaeontology is dealt with elsewhere. Messrs. A. J. S. 

 Cannon and Siddons have made important discoveries here, some of 

 which have already been described, whilst others are reserved for the 

 conclusion of this paper. 



Lower Lias 



(Ps. planorbe 



zone). 



, Upper 

 Ehaetic. 



. 1. Drift, sand, and gravel 



2. Laminated dark shales, weathering 



grey, with a blue line near the 

 top, iron - stained, weathering 

 light brown .... 



3. Dark -greyish blue -centred lime- 



stone, flaggy above, and below 

 massive in the centre ; crushed 

 crystalline limestone, in thickest 

 part, compound, consisting of 

 dark-blue and light-grey variega- 

 tions , false-bedded , dipping south . 

 At the top in the deepest part 

 resembling blue-hearted nodular 

 beds, layer 1 inch thick, bored by 

 vertical worm-tubes (cf . Browne) 



4. Stiff yellowish-brown nodular marl 

 \ with ironstone streaks, coated 

 , with manganese 



5. Blue-hearted nodular limestone, 



with veins of calcite 5 inches, 

 continuous in places, elsewhere 

 broken. In part double, with 

 a marly layer between 



6. Brownish nodular marl 



7. Blue nodular limestone, with iron- 



stained band at base . 



8. Blue laminated shales, with a band 



of pyritic nodules at the base, 

 and 5 feet above the base a rust 

 band ..... 



(to 2 ft. 3 in.) 



1 (to 1 ft. 2i in. 



4i (to 1ft. 2 in.) 



5 (to 1ft. 4 in.) 



5 (to 1 ft. OJ in.) 



1 



11 



Carried forward 



. 20 



