LOWER CHALK—NORTH-WEST OF FRANCE. 
257 
Zone of 
Turrilites 
Bergeri. 
Zo.se of 
Ammonites 
Mantelli. 
Zone of 
Ammonites 
Rotomagensis. 
A.rca ligeriensis, d'Orb . - - 
- 
- 
— 
X 
— 
„ passyana, d'Orb. - 
- . 
- 
— 
X 
— 
Cardium hillanum, Sow. 
■ - ■ 
- 
— 
X 
— 
Cor bis rotundata, d'Orb. 
- 
- 
— 
. — 
X 
Cyprina ligeriensis, d'Orb. 
Lucina coquandiana ? d'Orb. 
- 
- 
— 
X 
— 
- 
- 
— 
X 
— 
Pholadomya mailleana, d'Orb. 
- 
- 
— 
X 
Sanguinolaria ?. 
X 
Spondylus striatus, Sow. 
- 
- 
X 
— 
Trigonia crenulata, d'Orb. 
- 
- 
— 
X 
,, spinosa, d'Orb. ( = vicaryana V) - 
- 
- 
- 
— 
X 
Venus rotomagensis, d'Orb. - 
- 
- 
— 
— 
X 
Brachiopoda. 
Kingena lima, Defr. 
- 
- 
- 
X 
— 
Magas Geinitzi ? Schloenb. - 
. - 
- 
— 
X 
— 
Rhynchonella dimidiata, $ 010 . 
- ■ 
- 
X 
X 
X 
„ Schloenbachi, Dav. - 
- 
- 
— 
X 
X 
„ grasiana, d'Orb. 
- 
- 
X 
X 
— 
„ lamarckiana, d'Orb. 
- 
— 
— 
X 
Terebratula arcuata, Roemer - 
- 
— 
— 
X 
„ biplicata, Sow. - 
- 
- 
— 
X 
i 
„ tornacensis, d'Arch. - 
- 
- 
- 
X 
Bryozoa. 
Diastopora sp. - 
- 
X 
Entalophora ramosissima, d'Orb. - 
- 
- 
— 
X 
_ 
Micropora sp. - 
- 
— 
X 
— 
Reptomulticlausa papularis, d'Orb. 
- 
- 
- 
X 
- 
Echinoderma ta. 
Calliderma latum, Forbes 
_ 
X 
_ 
_ 
Catopygus columbarius, Lam. 
_ 
_ 
■ — 
X 
X 
Cidaris vesiculosa, Goldf. 
_ 
_ 
X 
X 
„ glandifera, Goldf. 
- 
- 
: -f 
X 
_ 
Cottaldia Benettise, Koenig - 
- 
_ 
— 
X 
X 
Discoidea subuculus, Klein - 
- 
_ 
X 
_ 
X 
Epiaster crassissimus, Dtfr. - 
- 
- 
— 
X 
Glyphocyphus radiatus, Hoen. - 
- 
X 
e 
Hemiaster bufo, Brong. 
- 
_ 
— 
X 
Holaster carinatus, Ag. ( = lsevis) 
_ 
_ 
X 
„ suborbicularis, Cott. non d’Orb. 
.. 
_ 
X 
Pseudodiadema ornatum, Goldf. 
- 
_ 
X 
X 
,, Micbelini, Ag. 
- 
_ 
— 
X 
X 
„ variolare, Ag. 
- 
- 
— 
X 
X 
Pentacrinus (joints) .... 
- 
X 
— 
- 
Spongida. 
Plocoscypbia sp. 
X 
_ 
Guettardia stellata, Mich. - 
_ 
_ 
X 
_ 
Tremacystia d’Orbignyi, Hinde - 
— 
X 
_ 
F oraminifera. 
Patellina concava, Lam. 
- 
- 
X 
- 
X 
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