﻿part 4] PHILLIPSASTR^A HENNAtJI, AND ORIONASTRjKA. 



293 



outcrop of that limestone is exposed by a chain of old quarries 

 extending from the south side of the village to Stob Hill, near 

 Cheesburn Grange, some 2 miles in a north-easterly direction. 



In that locality the Fell Top Limestone lies somewhere about 

 1000 feet above the Great Limestone, and is between 20 and 

 30 feet thick (I have, not been able, however, to expose the actual 

 base nor find the exact top). The lower portion consists of well- 

 bedded crystalline limestone; the middle is much more argillaceous, 

 and is divided up by bands and partings of shale ; but the 

 upper part, again, is more massive and more purely calcareous. 



The fauna does not materially differ from that of the lime- 

 stones between it -and the Great Limestone, except in a few 

 (but noteworthy) particulars— namely, the presence of Aulina 

 and the abundance of Litliostrotion cf . junceum (but approaching 

 L. irregulare), which occurs as small stunted colonies of tortuous 

 growth-habit. These colonies form in places a band at the top of 

 the lower and more massive portion, and appear to have been 

 buried as they lived by the overlying silt (now calcareous shale). 

 DibunopJiyllum near \p Vaughan (small, conical and often twisted 

 forms) is plentiful, and Litliostrotion portlocki is common. 

 The most striking feature of the brachiopod-fauna is the great 

 abundance of Productus latissimus. Fenestella is present in 

 large quantity. 



The other locality in which Aulina has been found is Hurdor- 

 thwaite Moor, from a thin series of limestones and shales inter- 

 calated in the Millstone Grit, to which series Prof. E. J. Garwood 

 has given the name of Botany Beds, 1 after the farm north of 

 their outcrops. 



Prof. Gai-wood 2 defines the stratigraphical position and geo- 

 graphical situation of the beds, and describes their character in the 

 following passages : — 



' The beds lie some distance [200 feet or so] above the base of this series 

 [the Millstone Grit] , and occupy a tract extending- for 2 miles in a general 

 east-and-west direction on Hurdorthwaite Moor, south of Botany Farm. 

 They are repeated by a strike-fault with a southward upthrow, which causes 

 an extension of the outcrop round the south of the moor, and affords additional 

 exposures. • 



' The beds are well seen in several old quarries at Scoletree, Howgill 

 Head, and Greenhill. They consist of a few feet of compact crystallized lime- 

 stone at the base, which is overlain by some 10 to 15 feet of impure calcareous 

 and ferruginous shales ' [and I may add — especially towards the top — lime- 

 stone-bands] . 



The sequence suggests at once the Fell Top Limestone, and 

 the resemblance is still further strengthened by the characteristic 

 appearance of the pale crumbly shale packed with Fenestella. 

 Faunistically also the two series bear a striking similarity, since, 

 in addition to Aulina, the Botany Beds have yielded the same 



1 Botany Farm lies 2£ miles west-south-west of Romaldkirk, and about 

 half a mile north of the Eeservoir (Quarter Sheet 102 S.E. New Series 31). 



2 Q. J. G. S. vol. lxviii (1912) p. 542. . 



