50 
THE CRETACEOUS llOCKS OE BRITAIN. 
grey marly chalk at the base, with Rhynchonella mantelliana. 
Cuttings on the railway one mile north of Otford Station also show 
the topmost of the Lower Chalk. 
The following list of fossils from the Lower Chalk of Burham 
Wouldham, Holborough, and Cuxton, has been compiled mainly 
from one given by Mr. G. E. Diblev, supplemented by the record 
of a few specimens collected for the Geological Survey. 
Fossils from the Lower Chalk of the Medway Valley. 
Zone of 
Am. varians 
Vertebrata. 
Apateodus striatus, Ag. 
Beryx microcephalus, An. (Ctenothrissa) 
■- 
- 
- 
- 
- 
Dercetis elongatus, Ag. 
Enchodus sp.. 
Edaphodon Mantelli, Bnckl. - 
» sp. - 
Homonotus dorsalis, Dixon - 
Notidanus microdon, Ag. 
Oxyrhina angustidens, Reuse - 
- 
- 
- 
- 
- 
- 
Pachyrhizodus Gardneri, Mason 
- 
- 
- 
- 
- 
„ sp. 
Plethodus oblongus, Dixon 
Portheus sp.. 
Protosphyrsena sp. ... 
Ptycbodus decurrens, Ag. 
„ depressus, Dixon - 
„ lsevis, A.S.W. 
,, polygyrus, Ag. 
Tomognathus mordax, Dixon 
- 
- 
- 
- 
- 
- 
Invertebrata. 
Ammonites [Acanthoceras] Mantelli, Sow. 
- 
- 
+ 
[ „ ] rotomagensis, Brongn. 
- 
+ 
,, [Schloenbacnia] varians, Sow. 
- 
+ 
„ [ ,, ] Coupei, Brongn. 
- 
+ 
Turrilites costatus, Lam. 
- 
+ 
„ tuberculatus, Bose. 
- 
4- 
Scaphites aequalis, Sow. 
- 
+ 
„ obliquus, Sow. 
- 
a- 
Hamites armatus, Sow. [Anisoceras] 
- 
+ 
Baculites sp.. 
+ 
Nautilus elegans ? Sow. - 
+ 
„ deslongcliampsianus, d'Orb. 
- 
+ . 
Actinocamax plenus, Blainv. 
- 
Solarium ornatum ? Sow. 
- 
_ 
Pleurotomaria perspectiva, Mant. 
- 
Area sp. . 
Exogyra haliotoidea ? Sow. 
+ 
Lima aspera, Mant. 
- 
,, eebinata, Eth. 
- 
+ 
„ elongata, Sow. 
- 
Inoceramus Cripsi ? Mant. 
„ latus, d’Orb., non Mant. 
- 
+ 
„ striatus, Mant. - 
. 
Ostrea hippopodium, d’Orb. - 
- 
Pecten Beaveri, Sow. 
- 
,, orbicularis, Sow. 
- 
+ 
,, iissicosta, Eth. - 
- 
„ new sp. .... 
_ 
Pinna decussata, Goldf. - 
Plicatula inflata, Sow. - 
. 
+ 
Pleuromya sp. . 
* 
. 
+ 
Pholadomya decussata, Phil. 
. 
+ 
Teredo amphisbsena, Goldf. - 
_ 
Terebratula biplicata, Sow. - 
„ semiglobosa, Sow. 
- 
+ 
,, squamosa, Mant. 
- 
— 
Rhynchonella mantelliana, Sow. - 
. 
„ dimidiata? Sou\ 
„ 
+ 
Kingena lima, Defr. 
+ 
Enoploclytia Leachi, Mant. - 
_ 
,, sussexiensis, Mant. - 
Serpula ampullacea, Soiv. 
„ umbonata, Soiv. 
_ 
+ 
Discoidea cylindrica, Lam. 
Holaster subglobosus, Leske - 
_ • 
„ trecensis, Legrn. 
Pseudodiadema ornatum, Goldf. - 
Axogaster cretacea, Lonsd. • 
m 
Coniferous wood 
a 
. 
- Zone of 
Hoi. subgl. 
+ 
+ 
+ 
-j- 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
*b 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
4* * 
+ 
+ 
-}• 
'+• 
.+ 
-T ! 
' + 
+■ 
+ 
+ 
4 * 
+ 
