THE MIDDLE LIAS OF NORTHAMPTONSHIRE 
313 
8.—Fish-Bed, somewhat nodular, nearly white exte- 
rior, dark purplish inside in places, not a 
continuous bed, containing many “ PlanulateT 
ammonites, a few “ Falcifer ” ones, Belemnites, 
Euomplialus minatus , fragments, Wood, dec. 0 4 
“ Transition ” LVd. 
A. —Layer of dark blue and red sandy clay, very much 
mixed up ; no fossils noticed ... ... ... 0 3 
A yellowish sandy limestone, rather soft, the fossils 
only casts, with here and there a harder piece 
from which a few fossils could he obtained. 
Ammonites acutus , Macrodon, G aster opods, dc. 0 4 
“ Spinatus ” Zone. 
B. —Rock-Bed, a sandy limestone, containing a good 
deal of iron, layers of ossicles, “ Jacks,” several 
irregular inconstant partings of red sand. 
Fossils in sandy part only casts. Usual fossils, 
Waldheimia resupinata rather abundant ... 6 0 
C. —Marly Clay, containing concretionary ferruginous 
nodules ... ... .. ... ... ... 1 6 
D. —Shaly Ferruginous Limestone, rather sandy, 
fossils fairly abundant. Ostrea cymbium, Pecten 
liasinus, Limea acuticosta, Protocardium truncci- 
tum, dc. ... ... ... ... ... ... 0 4 
E. —Marly Clay, similar to “ C.” ... ... ... 2 7 
“ Margaritatus" Zone. 
F. —Sandy Ferruginous Limestone, rather soft and 
shaly, containing Ammonites margaritatus in 
abundance, Pleuromya costata (abundant), 
Turbo aciculus, Ostrea cymbium var. obliquata, 
Flicatula sfdnosa, Inoceramits substriatus, Modiola 
numismalis, Cardita multicostata, dc. (seep. 188) 3 2 
G. —Sandy Marl, containing Ammonites margaritatus, dc. 6 2 
H. —Soft Sandy Limestone, containing Ammonites 
margaritatus, Pholadomya ambigua in abundance, 
Fucoui impressions, dc. (see p. 187) ... ... 3 3 
Beds 1 to 8, as also A and B, may be best examined near 
to Byfield, both along the line and in a small quarry on the 
south side of the line ; D to H, best on the south side of the 
line near to Byfield Pool, though since the line has been put 
in working order again none of the beds below B can be well 
seen. I may add that I have never myself seen the soft 
beds C, E, and G, the description of them having been taken 
from Mr. Walford’s pamphlet. Mr. Walford says that a hard 
