1870. | JUDD—NEOCOMIAN. 341 
to rest directly upon the Middle Neocomian beds. This fact, taken 
in conjunction with that of the Neocomian being so frequently over- 
lapped by the beds of the Upper Cretaceous, appears to point to the 
conclusion that in Northern Germany, as in this country, an uncon- 
formity exists between the two series. 
In the low land in the neighbourhood of Hildesheim the clays of 
the Middle Neocomian again occur, but are only exposed in a few 
clay-pits. In these I collected :— 
Pecten cinctus, Sow. 
&e. &e. 
Ancyloceras (Crioceras) Emmerici,Lév. 
Belemnites jaculum, Phil. 
Exogyra sinuata, Sow. [ 
In the chain of the Hils the deposits of Neocomian age are very 
well developed. The locality of Elligser Brinke, near Delligsen, is 
especially celebrated—the beds here, which were at first referred to 
the Jurassic System (Oxfordian and Kimmeridge), having yielded a 
very large suite of fossils, particularly rich in Brachiopoda and 
Sponges. 
I found the beds at this place to consist of blue clays, with a few 
septaria of a whitish colour, and also some scattered irregular 
nodules of brown ironstone. At a considerable depth in this clay 
occurs a bed (not now exposed) of argillaceous limestone, crowded 
with oysters, brachiopods, and other shells *. The following fossils 
have been obtained from Elligser Brinke, the beds at which place 
appear to represent the lowest portion of the Middle Neocomian, or 
the top of the Lower Neocomian. 
Belemnites lateralis, Phil. (B. subqua- 
dratus, fom.). 
—— jaculum, Phil. (B. pistillum, 
Rom.). 
Nautilus radiatus, Sow. 
Ammonites noricus, Schloth. 
—-— radiatus, Brug. (A. asper, Me- 
rian). 
clypeiformis, D’ Ord. 
Pleurotomaria suprajurensis, Rém. 
gigantea, Sow. (P. striata, Sow.). 
Turbo clathratus, Rom. (T. subclathra- 
tus, D’ Ord.). 
sulcatus, Koch. 
hilseana, Koch. © 
Trochus scalaris, Rém. 
Ostrea macroptera, Sow. 
Exogyra sinuata, Sow. (O. aquila, 
Brong.). 
Boussingaulti, D’ Orb. (BH. subpli- 
cata, om.). 
EHxogyra tuberculifera, D. g K. (H. 
spiralis, and reniformis, Goldf.). 
undata, Sow. 
haliotoidea. 
Plicatula ornata, Goldf. 
imbricata, Koch § Dunker. 
Pecten cinctus, Sow. (very rare). 
striato-punctatus, Rom. 
Avicula Cornueliana, D’ Orb. (A. ma- 
croptera, Rom.), very abundant. 
Perna Mulleti, Desh. (very rare). 
Lima plana, Pom. 
— subrigida, Rom. 
—— longa, Rém. (L. elongata, Rom.). 
stricta, Rom. 
Modiola rugosa, 6m. 
pulcherrima, om, 
Arca exsculpta, Koch. 
Nucula subtrigona, Rom (? N. subtri- 
angula, K. & D.). 
Venus parva, Sow. (V.subinflexa, Rém.). 
* Tn this bed was found a single specimen of Perna Mulleti, Desh., a shell 
which has also occurred in considerable abundance in sandstones of the same 
age (Middle Neocomian) in the Teutoburger Wald andin Holland. M. Cornuel 
records it (Bull. Soc. Géol. Fr. 2me sér. t. yili.) from the Upper and Lower Neo- 
comian of the Dept. of the Haute-Marne; in this country it has only occurred in 
the Upper Neocomian Atherfield Clay and the cement-beds of Speeton. 
