146 president's address — section c. 



seen to succeed one another conformably in the Haughton Range — 

 south latitude 19° S., and east longitude 127° E. Both series have 

 yielded an assemblage of purely Carboniferous fossils : — Lepidoden- 

 dron, sp. ; Stigmaria, sp. ; Stromatopora concentrica (?) ; Stromatopora 

 placenta, sp. ; Pachypora tumida ; Zaphrentis, sp. ; Syringopora, sp. ; 

 Actinocrinus, sp. ; Platycrinus, sp. ; Poteriocrinus crassus, Miller ; 

 Pentremites, sp. ; Serpula ; Spirohis, sp. ; Fenestella plebeia (antiqua), 

 M'Coy ; ProducUis giganteus ; Productus longispinus ; Productus 

 semireticulatus ; Chonetes, sp. ; Chonetes Hardrensis ; Discina ; Orthis 

 resupinata ; Strophalosia Clarhei, Eth. fil ; Rhynchonella pugnus ; 

 Rhjnchonella pleurodon ; Rhynchonella cuboides ; Orthotetes crenistria, 

 Phillips ; Streptorhynchus crenistria ; Terebratula hastata (?) / Tere- 

 hratula sacculus (?) ; Pleurotomaria, sp. ; Toxonema, small sp. ; Natica, 

 sp. ; Ceriopora, sp. ; Choetetes tumidus ; Stenopora Tasmaniensis ; 

 Cyathophyllum, sp. ; Cyathophyllum virgatum ; Cyathophijllum de- 

 pressum ; Lithodendron afpne. 



So far as observations on the Kimberley Carboniferous rocks have 

 been carried, no boulder beds have yet been recognised, though in 

 view of the occurrence of glacial conglomerates in India within 18° 

 of the equator their presence in Kimberley would cause little surprise. 

 The necessity for a further more or less detailed geological examination 

 of a portion of the Kimberley district is at the present moment under 

 consideration by the Government, and the solution of the many econo- 

 mic questions involved in the stratigraphical research which such an in- 

 vestigation entails is of no less importance to the community than the 

 purely scientific results which of necessity follow. 



The Gascoyne beds cover a very large area between the 22nd and 

 the 26th parallels of south latitude, and excellent sections of them may 

 be seen in the valleys of the Wooramel, Gascoyne, Lyons, Minilya, 

 and Lyndon rivers. Like their representatives in Kimberley, the 

 strata are divisible into an upper or sandstone and a lower or limestone 

 series. The sandstone series, which is seen resting conformably upon 

 the limestone, is well exposed in the Carandibby, Kennedy, and the 

 Moogooloo Ranges, making a bold outcrop of almost 200 miles in length. 

 The beds forming these ranges were until quite recently regarded as 

 of Mesozoic Age. The discovery, however, of Spirifera, Ath^jris (?), 

 Productus and Strophalosia in the Kennedy Range, near Trig. Station 

 K 37, on the northern bank of the Gascoyne River, definitely sets at 

 rest the conflicting views until quite recently held regarding their 

 position in the geological time scale. 



The country to the east of the Kennedy Range is underlaid by 

 fossiliferous beds of the limestone series, associated with which is the 

 glacial boulder bed. This bed, which forms a valuable stratigraphical 

 horizon, has been traced across country for a distance of about 60 or 

 70 miles. 



At the most southerly locality at which the boulder bed has been 

 detected in Wooramel Valley, the boulders are of very large size, and 

 is composed of rocks identical in character with those forming the 

 older underlying rocks to the east, e.g., granite and other crystalline 

 and metamorphic rocks. 



