﻿Vol. 64.] THE FOSSILIFEROTJS SILTJRIAN EOCKS OF TOETWORTH. 



529 



No. 2 entered red and green calcareous sandstone or sandy 

 limestone, with bands of compact rubbly limestone, at the 

 depth of about 6 feet. The overlying material consisted of 

 clay, with blocks of the same rocks as those that lower down 



were found in 



Pig. 4. — Plan of trenches dug on the hill-slope 

 south of Little DanieVs Wood. 



Trench No 4 



situ. No fossils 

 were met with, 

 except obscure 

 crinoidsandbra- 

 chiopods. The 

 rock closely re- 

 sembles depo- 

 sits of undoubt- 

 edly Wenlock 

 age in various 

 parts of the 

 area. At the 

 spot marked X 

 in the accom- 

 panying plan 

 (fig. 4) a slight 

 scarp occurs, 

 and at this point 

 a cutting was 

 made, which 

 (though it dis- 

 closed nothing 

 in situ) brought 

 to light large 

 numbers of 



blocks of Wen- 

 lock Limestone. 

 The presence of 

 Wenlock strata 

 here and at trench No. 2 is in harmony with the westerly 

 dip of the Ludlow at trench No. 3. 

 No. 3, at the depth of about a foot, entered red calcareous sand- 

 stone with limestone-bands dipping 15° westwards, that is, 

 in a direction the reverse of that of the prevalent dip of the 

 Wenlock throughout all the region on the west and south. 

 The calcareous sandstone is full of lamellibranchs — Pterincea 

 retrofleoca^ Wahl., Modiolopsis cf. Nilssoni, His., Modiolopsis 

 sp., Orthonota cf. amygdalina. Sow., Orthonota cf. decipiens^ 

 M'Coy, Anodontopsis cf. securiformis, M'Coy ; and contains 

 also Nudeospira pisum, ^ow. ,0)'this elegantida, Rhynchonella 

 nucula, Sow., Chonetes striatella (?) Dalm., Cornulites serpu- 

 larius^ Schloth., and Favosites sp. The thin limestone-bands 

 contain many crinoid-stems. This assemblage of fossils, 

 although not that typical of the Ludlow of Herefordshire 

 and Shropshire, is rather of a Ludlow than of a Wenlock 

 character, and indicates that Murchison was justified in his 



Scale: i mile= 12 inches. 



(Approximately) 



[The ii'regular line enclosing the area on which the 

 trenches were diig marks the boundary of a field.] 



