332 GREAT SERPENTINE BELT OP NEW SOUTH WALES, vii, 



Several interesting features are seen in this Table. The two 

 species of Syringopora named have, so far, been collected only from 

 the Moore Creek limestone, to which also F. crummeri has hereto- 

 fore been confined. The recognition of three definite species of 

 Tryplasma is an advance on the single form recorded previously 

 from this horizon (6, p. 552); while the occurrence of Foraminifera 

 is a very welcome feature, since, apart from forms occurring in 

 the Devonian limestones of Germany and South Devonshire, no 

 other occurrences of Devonian Foraminifera are known. They 

 were found in a small mass of oolitic limestone about four inches 

 in diameter. The granules, according to Mr. Chapman, form a 

 little more than half the bulk of the rock; "they vary in diameter 

 from 0-46 to 0*7 mm., and only a small proportion are due 

 entirely to oolitic accretion, whether originally of algal origin or 

 not it is impossible to say, on account of their present mineral- 

 ised condition. The nucleus of the oolitic grain, in more than 

 one case, was seen to consist of an ossicle of a crinoid. There 

 is a fair amount of iron-staining in the rock-structure which 

 seems to be entirely secondary, as the stain is de\ eloped more 

 strongly along incipient fracture-lines than in the grains them- 

 selves." (See Appendix i.). The ferruginous matter has doubt- 

 less been introduced from the associated NeminghaRed Breccias. 



The analysis of the limestones from this outcrop are given 

 below (p.334). 



Nearly a mile south of the occurrence in Portion 58, the lime- 

 stone appears again, associated with red, ferruginous keratophyre- 

 breccia crossing the western end of Portion 55; this outcrop is 

 nearly half a mile in length. 



The next outcrop is considerably to the east as well as south 

 of the above, and is probably separated from it by considerable 

 dip-fault, though the intervening alluvium and ploughed land 

 hide the details of the outcrops. This mass is quite small, 

 occurring near the corner of Portions 53 and 52. 



The limestone on Portion 35 has been moved still further to 

 the east, and is separated from the last-mentioned occurrence b}- 

 a large intrusion of dolerite. A small fault traverses this mass, 

 cutting it into two portions, one nearly 600 yards long and 60 



