Vol. 58.] ASSOCIATED BEDS OF THE MALVERN HILLS. 135 
basal shales) together with the Purley Beds, or lowest division of the 
Stockingford Shales. Otherwise no representatives of these shales 
exist in the Malverns. 
The shales with Polyphyma Lapworths in the southern part of 
the district, like the shales with Spherophthalmus farther north, 
are probably faulted against the older rocks. They may represent 
the Swedish zone of ‘ Beyrachia’ Angelini, and, perhaps at the same 
time, the Ffestiniog Beds of North Wales. It is, however, equally, 
or more, probable that they represent the uppermost part of the Para- 
doxidian, since they contain the Swedish fossil Kutorgina pusilla. 
The zone of Agnostus pisiformis has so far not been detected in the 
Malvern area, the fossils attributed to this species being referable to 
A, trisectus. | 
The greater part of the Malvern Black Shales belongs to the zone 
of Spherophthulmus alatus and its associates. It is possible, how- 
ever, that other zones, both immediately above and immediately below 
this, may be represented in the district, but no fossils characteristic 
of the zones of Parabolina spinulosa, Leptoplastus and Hurycare, 
or Cyclognathus, have been detected hitherto. 
The lowest part of the Bronsil Shales has furnished only a few 
minute fossils, but the middle part has yielded many Tremadoc and 
Shineton forms, including Asaphids and Olenids, in association 
with Dictyonema sociale. The Dictyonema-beds of Malvern, 
and probably of North Wales and other parts of 
Britain, are to be classed with the Tremadoc Series 
{Huloma- Niobe fauna), and may conveniently be 
taken as marking the base of the Ordovician. 
It remains for me to tender my best thanks to Sir Archibald 
Geikie, Prof. T. McKenny Hughes, Prof. Charles Lapworth, the Rev. 
G. E. Mackie, Prof. W. J. Sollas, the officers of the Malvern Field 
Naturalists’ Club, and the authorities in charge of the Museum at 
Worcester, who have kindly facilitated my work by the loan or gift 
of fossils. 
APPENDIX. 
On the CAMBRIAN BRACHIOPODA of the MAtvurn Hixts. 
By Cuartrs ALFRED Mattey, Esq., B.Sc., F.G.S. 
(1) Introductory. 
Berore entering upon a description of the Malvern Cambrian 
brachiopoda which I have had the opportunity of examining, it may 
be well to make a few brief remarks as to our present: knowledge 
of these fossils. 
Although the Cambrian rocks of the Malvern district have been 
patiently hammered over by more than one generation of geologists 
{among whom, of those now passed away, may be mentioned 
Prof. Phillips, Dr. Grindrod, Dr. Holl, the Rev. W. 8. Symonds, and 
