368 



L. Richardson — Rluviic Section at Wigsion. 



'A 



K 



M 

 14 



10 



11 



r Shales, black, at first clayey, with 

 I thin seams of sandstone, the 



\ most noticeable, 14 inches thick, 

 at about 3 feet above 9 

 /■ Limestone, pale bluish-grey, with 

 I fissures filled in with calcita 

 j and occasionally with baryto- 

 \^ celestine 



Shales, black, less fissile in the 

 upper portion 



Limestone-nodules, pale bluish- 

 grey, septariform, with 

 radiating gypsum 



Thickness in 

 ft. in. 



. 9 3 



\ 



1-2 



Shales, fissile, gypseous, some- 

 what sandy 



13 Eust- coloured layer 



Shales, thinly laminated in the 



14 ^ upper portion, but more thickly 



I laminated below 



15 i Bone-bed: to 1 inch 



5 



13 



3 



4 < 



1 



2 8 



1 



29 9 



{[" Estheria miiiuta,^' teste 

 M. Browne.] 



r Isoci/prina £waldi(BoTn.), 

 j Chlamys valoniensis 

 \ (Defrance). 



J \J^ ? Estheria muntia,^' 

 I teste M. Browne.] 



' Isoci/prinaEivaldi(Bovn.), 

 Protocardia rhcetica 

 (Wenav) ,rteriaeontorla 

 (Portlock), Chlamys 

 valouiensis (Defrance), 

 Fholidophorus Higginsi, 

 Egerton, scales of 

 Gyrolepis Alberti, Ag. 



r Pteria contorta (Portlock), 

 Isocyprina Ewaldi 



I (Born.), Gyrolepis 



y Alberti, Ag. (scales and 

 teeth) . 



' Acrndus minimus, Ag., 

 Hyhodus minor, Ag., 

 Saurichthys acuminatus, 

 Ag., Gyrolepis Alberti, 

 Ag., Colobodus sp., 

 ichthyodorulite of 

 Nemacanthus (frag- 

 ments), etc. 



Non- sequence. 



Tea-green Marls ; 12 to 

 C Bed marls with greenish - grey "^ 

 \ zones and pink gypsum : seen J 



15 

 12 



27 seen 



The very sharply defined line between the Tea-green Marls and the 

 Fteria-contoria-'^2\.Q's, would suggest that this was the case, apart 

 from the fact that it is now known that the Sully Beds intervene 

 where the sequence from Keuper to Rhsetic is as complete as it is 

 everywhere in this country. Thus atWigston the Keuper and Rhsetic 

 deposits are conformable to one another, but are nevertheless non- 

 sequential. 



On the south side of the pit, namely, that opposite to Glen-Parva 

 Station, and immediately to the west of the ash-tip, it will be noticed 

 that above the really black shales are pale yellowish and greenish- 

 brown marls, somewhat laminated in places, with a pale-coloured 

 limestone-bed at or near their base. Now it is at or may be a few 



