THE 
GEOLOGICAL MAGAZINE. 
NEW SERIES. DECADE It. .VOL.,-VII. 
No. IV.—APRIL, 1880. 
ORIGINAL ARTICLIES. 
J.—Noricr oF THE Occurrence or Upper Devontan GontatitE 
Limestone 1N Dervonsuire,! 
By Prof. Dr. Ferpinanp Roemer, For. M. Geol. Soc. Lond., 
of the University of Breslau. 
(PLATE Y.) 
N a visit to Devonshire, in August, 1879, I was conducted 
by my friend, Mr. John Edward Lee, F.G.S., of Torquay, to 
a recently discovered locality at Lower Dunscombe, near Chudleigh, 
in which large Goniatites occur in considerable numbers in a bed of 
red limestone. On the slope of a chain of hills, not far from one of 
the farm-houses belonging to Lord Clifford, there is a ruined quarry, 
in which a vertical face of limestone is exposed. 
The limestone at the top of the quarry is thinly-bedded, and is 
partly overlain by a red ferruginous limestone, which is separated 
from that beneath by a thin band of clay. This thinly-bedded 
layer is more or less filled with compressed Goniatites; the most 
frequently-occurring species being G. intumescens, Beyr., recognized 
as such by the form of its sutures. It attains sometimes to a 
diameter of nine inches. 
These large specimens are always more or less compressed, and 
the body-chamber is also flattened. G. multilobutus, Beyr. (G. sagit- 
tarius, G. and F. Sandberger) is still more rare,—a smooth, discoidal, 
sharp-edged species, which is so named from the many serrated 
lobes of the closely approaching septa.” 
Besides these Goniatites, a subcylindrical Orthoceras is especially 
abundant. It is perhaps identical with O. acuwariwm, Minster, which 
the brothers Sandberger have obtained at Oberscheld; but it is too 
imperfect to admit of identification with certainty. Numerous 
bivalves are met with, but they are also too imperfectly preserved 
to allow of safe determination, although one of them has the common 
form of Myalina tenuistriata, Sandb., from the Devonian Limestone 
of Oberscheld. More safely determinable is Phacops cryptophthalmus, 
Emmr., which is well known as a characteristic Upper Devonian 
Trilobite. JI found a small, easily-recugnizable head-shield of that 
species in the same rock-fragment with G. intwmescens. Lastly, Mr. 
1 Translated from the Zeitschr. der Deutschen geolog. Gesellschaft, Jahre. 
2 The brothers Sandberger have figured this species beautifully from perfect ex- 
amples found at Oberscheld, and have fully described it under the name of @. sagittarius. 
Beyrich only knew incomplete specimens, but the characteristic form of the lobes and 
the general form of the shell were already correctly given by him, and therefore his 
name has the priority. 
DECADE II.—VOL. VII.—NO. IV. 10 
