LOWER 6HALK—NORTH-EAST OF FRANCE. 
249 
1 
2 
3 
Rhynchonella compressa, Lain. 
,, depressa Sow. 
X 
. 
- 
X 
X 
,, grasiana, d'Orb. 
X 
X 
X 
,, Martini, Mant. - 
X 
— 
X 
,, Schloenbachi, Dav. - 
— 
X 
Terebratula semiglobosa, Sow. - 
— . 
— 
X 
, squamosa, Mant. 
- 
— 
X 
,, dutempleana d'Orb. (= biplicata) 
- 
— 
X 
Terebratulina rigida, Sow. 
X 
- 
- 
,, striata, Wahl. - 
X 
— 
X 
Magas sp. - 
— 
- 
— 
Pollicipes sp. ----- - 
X 
- 
X 
Vermicularia concava, Sow. - 
„ polygonalis, Phil. - 
— 
X 
— 
X 
Discoidea subuculus, Klein 
— 
X 
Pseudodiadema sp. - 
— 
— 
X 
Micrabacia coronula, Goldf. 
X 
— 
- 
Oncliotrochus Carteri, Dune. - 
X 
— 
- 
Polycoelia laevigata, Roemer - 
X 
— 
~ 
Stauronema (in black phosphate) - 
— 
— 
X 
Hylospongia (in black phosphate) - 
- 
- 
X 
Of the species recorded from the Marne de Givron all except live 
occur in the Lower Chalk or Chloritic Marl of southern England. 
The five exceptions are Aporrhais varicosa, Pleurotomaria Gueran- 
geri y Turbo Mulleti, Ostrea ricordeana, and Polyccelia Icevigata, 
and the first four of these are all French Upper Cenomanian species 
