1870. | JUDD—NEOCOMIAN. 343 
of Prof. Beyrich *, beds clearly referable by their fossils to the Neo- 
comian. These beds dip at a very high angle (70°), and perhaps 
form an anticlinal; they consequently occupy only a very small area. 
I found these beds to vary very greatly in character within short 
distances, sometimes consisting of dark-blue clays, in places contain- 
ing beds of ironstone, sometimes passing into interstratified clays 
and limestones (greatly resembling those of Tealby), and sometimes 
consisting of unfossiliferous white, greenish, and brown, often con- 
glomeratic, sands and sandstones. The clays and limestones here 
yield an abundant fauna, which enables us to refer the beds, with- 
out the slightest doubt, to the Middle Neocomian. The fossils which 
I collected from these beds in the vicinity of Ocker are as follows :— 
Pecten orbicularis, Sow. 
Serpula antiquata, Sow. 
filiformis, Sow. 
Pecten cinctus, Sow. (very abundant). 
Exogyra sinuata, Sow. (very abundant). 
Belemnites jaculum, Phil. (very abun- 
dant). Terebratula, sp. 
lateralis, Phil. ? Rhynchonella multiformis, Rom. 
Ostrea macroptera, Sow. Sponges. 
Northwards from Goslar, at the brickyard of Olhey, blue clays 
are dug, containing Ammonites Deshayesr, Leym., Ammonites Martini, 
D’Orb., Crioceras, sp., and other shells, which show clearly that 
these beds belong to the Upper Neocomian. 
The “Subhercynischer Unter-Quader-Sandstein,” like the Hils- 
sandstein, which it resembles in general characters, contains but 
few fossils. These beds have been referred by M. von Strom- 
beck to the Gault; it is not improbable, however, that they will 
prove to represent the highest member of the Neocomian. 
6. Brunswick.—In this country the Neocomian series is more 
complete than in any other part of North-Western Germany ; and it 
has been most admirably illustrated by the map and the various 
memoirs by M. von Strombeck?t, who during many years has 
devoted himself with so much zeal and success to the study of the 
geology of this district. 
The Upper Neocomian is represented by the following succession 
of beds. 
(1) Whitish marly clay seen in the neighbourhood of Brunswick and at 
several other points—‘ Gargas-Mergel”’ (‘zone of Ammonites Nisus,” 
Von Strombeck). The fossils of this bed are— 
Belemnites Ewaldi, Von Strom. Rhynchonella lineolata, Phi. 
Ammonites Nisus, D’ Ord. Terebratula Martiniana, D’ Ord. 
Deshayesi, Leym. Moutoniana, D’ Orb. 
Martini, D’ Ord. hippopus, D’ Orbd., non Rom. 
Toxoceras Royerianus, D’ Ord. Pollicipes, sp. 
Avicula aptiensis, D’ Ord. Cidaris, sp. 
* Beyrich, Zeitschr. d. deutschen geol. Gesellsch. i. p. 302, Karte iii. Karte 15; 
ix. p. 415; xi. p. 73, &c. 
+t Geognostiche Karte des Herzogthums Braunschweig, 1856. Beilage zu der 
geognostiche Karte des Herzogthums Braunschweig, 1857, ‘‘ Ueber die Neoco- 
mien-Bildung,” &e., Zeitschr. d. d. geol. Gesell. vol. i. p. 462. ‘“‘ Ueber die Echi- 
miden des Hils-Konglomerat,” &e. Neu. Jahrb. 1855, p. 641. “ Bemerkungen 
tiber des Hils-Konglomerat und den Speeton-Clay bei Braunschweig,” Neu. 
Jahrb. 1855, p. 159,“ Ueber der Gault,” &c. Zeitschr. d. d. geol. Gesell. 1861, 
p. 20, &e. &e. 
