Qeological Society. 583 



PUOCEl': DINGS UF LKAliNHD SOClia'IES. 

 (J EC) LOO I C A L SOCI KT Y . 



February 7lh, 19(>0.— W. Whitaker, R.A., F.R.S.. 

 President, in the Chair. 



The following communication was read : — 



' Foramiuifcra from an Upper Cambrian Horizon in the Malverns.' 

 By Frederick Chapman, Esq., A.L.S., F.R.M.S. 



The foraminifera described in this paper were fuund in a shaly 

 limestone which Prof, (irooni obtained ' from the debris of a 

 email ridge composed of black shales, with intercalated basalts, 

 which forms a spur on the north-west side of Chase End Hill. 

 The rock belonji^s to the well-known and widely-spread zone of 

 Sphirrophthahnns, Peltitra, and Ctenopyge^ which in Britain forms 

 the upper half of the Dolgelly Beds or Uj^per Lj/^^^/rt-Flags.' The 

 specimens have been sliced, and have yielded a few forms other than 

 Spirilliiia ; sections of echinoderm-spines, ostra cod- tests, and occa- 

 sionally sponge-spicules (?) are also to be seen in the slides. Tho 

 tests of the foraminifera are infilled with a crystalline substance. 



The following species are mentioned : — Lar/ena Umna, Montagu, 

 L. apicniaia, Reuss, L. ovum, Ehrenberg, No'Iosorid py(pniPa (?) 

 Terquem, y. ahnonnis (?) Reuss, Mar<jiaula soluta (?) Reuss, 

 CristeUann acHtanricxdaris (?) (Fichtel & Moll) ; and a new species 

 of SpiriUina is described. The HpinHuue are in a good state of 

 preservation ; and the valves of mollusca, cut through in section, 

 are sometimes seen to be quite tilled with the tests of this genus. 



A record is given of some of the earliest known foraminifera, 

 including tho somewhat doubtful forms described by Cayeux from 

 pre-Cambrian rocks in Britanny, those by Ehrenberg from the so- 

 called ' Silurian Clay ' near St. Petersburg, by W. D. & 0. F. 

 Afatthew from the rocks bearing the Proiohnus-iixwwd in New 

 Brunswick, by Keeping from the shales above the Bala Limestone 

 near Welshpool, by Blake from the Llandovery of Cwm Synilog, 

 by Brady from the Woolhope Limestone of the ^lalverus, and by 

 Terquem from the Ujiper Silurian rocks of Indiana. Tho Author 

 has also frequently met with Layena in the Wenlock Limestone of 

 Shropshire. 



