BASIN. 
Lurestones AND AssocrIaTED Bens. 
RE EIR ED ae 
LirnHoLoGy—REMARKS. 
Some oF THE CHARACTERISTIC Fossits. 
ll 
Reddish Cale Grits, often cherty, 
with sometimes marly shales. 
Dirty earthy Limestones, very 
unfossiliferous. 
Hard caleareous bands and soft 
sub-calcareous Shales. 
< Bl. & 
{  Belemnites nitidus, Dollf. Am. varicos- 
tatus, Buckl. A. alternans, Von Buch. 
Ostrea bullata, Sow. Gryphea subgibossa, 
H. Pecten Midas, D’Orb. Modiola 
cancellata, Rim. Lucina aspera, Buvig. 
L. substriata, Rim. Thracia depressa, 
Phil. Goniomya, Pleuromya, etc. 
Boulders of Thamnastrea con- 
einna, and branches of Rhab- 
dophyllia im an intercoralline 
brash. 
Variety of Corals; often mas- 
sive, sometimes compactand cherty, 
rarely oolitic. 
Compact Limestones ; massive 
Coral Bands, shelly brash, rarely 
oolitic. 
Fine white Oolites, with Coral- 
shell Beds in the upper part. 
Usually compact creamy Lime- 
stones with sparry Shells, calca- 
reous Pastes with Oolitic granules. 
Clean white Oolites, sometimes 
a little marly, burnt for lime. 
Zone of A. plicatils. 
An Arenaceous Cale Grit, some- 
times with Shell-beds, where it 
graduates into the overlying series. 
Building. 
Small-grained Oolites,  fre- 
quently rather gritty, much used 
tor lime. 
Gritty small-grained Oolites, 
often very impure, quarried for 
lime and roadstone. 
Thick-bedded Oolites, formerly 
much burnt for lime. 
Coarse gritty Limestones, often 
ferruginous. 
The basement beds not well dis- 
tinguished here. 
Fig-seedy Limestones, with 
much grit—building, road stones. 
Upper Part of Zone of A. perarmatus. 
< dema hemisphericum, 
( Aim. varicostatus (Buckl.) var. of A. pli- 
catilis. Purpuroidea nodulata, Y. and B. 
Natica maxima, Y.andB. Cerithium lime- 
forme, Rem. Nerinea Remeri, Goldf. 
Littorina muricata, Sow. Turbo funicu- 
latus, Phil. Ostrea duriuscula, Phil. 
Peeten vimineus, Sow. Lima pectenifor- 
mis, Schlot. Arca quadrisculata, Sow. 
Astarte rhomboidalis, Phil. Opis virdu- 
nensis, Buvig. Terebratula insignis, Schibl. 
Cidaris Smithii, Wr. C. florigemma, Phil. 
Hemicidaris intermedia, Flem. Pseudodia- 
Ag.—Corat Rac. 
A. pli- 
Chem- 
=, 
Belemnites abbreviatus, Mill. 
catilis, Sow. A. cordatus, Sow. 
nitzia heddingtonensis, Sow. Nerinea 
visurgis, auct. Cerithium muricatum, 
Sow. Peeten intertectus, Roem. Cucullea 
corallina, Damon. Trigonia Meriani, Ag. 
T. perlata, Ag. Lucina aliena, Phil. As- 
tarte Duboisiana, D’Orb. Pygurus Haus- 
manni, K. and D.—CoRALLINE OoLITE. 
N.B.—The top shell-bed of the Lower 
Limestones is included with the Coralline 
{ Oolite paleontologically. 
floriceps, Phil. 
Belemnites abbreviatus, Mill. A. perar- 
| matus, Sow. A. cordatus, Sow. (ewca- 
vatus.) A. goliathus, D’Orb. Cylindrites 
elongatus, Phil. Avicula ovalis, Phil. 
A. expansa, Phil. Pecten Jibrosus, Sow. 
Gervillia avieuloides, Sow. Myacites, Pho- 
ladomyq.  Echinobrissus scutatus, Lam. 
Holectypus. 
Ammonites Williamsoni, Phil. A, goli- 
athus, D’Orb. Avicula ovalis, Phil., and 
expansa, Phil. Gervillia awiculoides, Sow. 
Trigonia clavellata2 Sow. T. triquetra, 
Von Seeb. 7. Snaintonensis, Lye. Sower- 
bya triangularis, Phil. Waldheimia buc- | 
culenta, Sow. W. Hudlestoni, Walk. ZFere- | 
bratula fileyensis, Walk. Rhynch. Thur- 
manni, Voltz. Glyphea rostrata, Phil. 
Millericrinus echinatus, Goldt. Spongia 
