MIDDLE CHALK—SUFFOLK AND NORFOLK. 
477 
From this pit Mr. Eh odes obtained a few fossils, which have been 
identified as follows : — 
Inoceramus mytiloides. 
Terebratula semiglobosa. 
Rhynchonella Cuvieri. 
Hblaster (? planus). 
Galerites subrotundus. 
Discoidea minima. 
Cardiaster (*1 pygmoeus). 
Cidaris spines. 
The third quarry is half-a-mile south of Thornham, and shows 
about 30 feet of hard veiny chalk with several layers of large grey 
flints ; this is probably in the upper part of the zone. 
The following is a list of such fossils as have been found in the 
Middle Chalk of these counties, compiled partly from Professor 
Barrois’ work, but chiefly from the Survey Memoirs on Sheets, 51, 
65, and 69 :— 
Zone of 
R. 
Cuvieri. 
Zone of 
T. 
gracilis. 
Cephalopoda. 
Ammonites [Acanth.] nodosoides, Schliiter 
X 
- 
„ [Pachydiscus] peramplus, Maui. 
X 
- 
„ [Acanth] rusticus ? Sow. 
X 
- 
,, large smooth sp . ----- 
X 
— 
Lamellibranc/iiata. 
Inoceramus Brongniarti, Sow. . 
1 - 
X 
,, Cuvieri, d'Orb. ----- 
X 
X 
,, Lamarcki, Park. . 
— 
X 
„ mytiloides, Mant. 
X 
X 
Ostrea vesicularis, Lam. - 
X 
Plicatula Barroisi, Per on - 
— 
X 
Brachiopoda. 
Rhynchonella Cuvieri, d'Orb. ----- 
X 
X 
,, „ (small var.) - 
X 
X 
Terebratula semiglobosa, Sow. . 
X 
X 
Terebratulina striata, Wahl. . 
„ gracilis, var. lata, Eth. 
X 
— 
— 
X 
Echinodermata. 
Cidaris hirudo, Sorig. ...... 
X 
— 
„ Sp. -------- 
— 
X 
Cardiaster (? pygmseus, Forbes) . 
- 
X 
Discoidea minima, Ag. 
X 
— 
Galerites subrotundus, Brongn. - - - 
X 
X 
Holaster planus, Mant. - - - - 
— 
? 
