26 NEW YORK STATE MUSEUM 



While the localities of the Rock)' mountain region demonstrate the 

 presence of the Normanskill fauna in the easternmost part of the Pacific basin, 

 Australia has also furnished ample evidence of the presence of this fauna 

 in the southwestern part of the basin. T. S. Hall records the presence of 

 the beds characterized by the Dicranograptidae from New South Wales 

 [1902] and Victoria [1896, 1899]. 



From the former colony are cited: 

 Dicellograptus cf. divaricatus J . Hall Diplograptus foliaceus Murchison 



D. cf. elegans Carruthers D. cf. whitfieldi /. Hall 



Dicranograptus zic-zac var. minimus Lap- Climacograptus bicornis /. Hall 



worth Glossograptus cf. mucronatus (J. Hall) 



Clathrograptus cf. geinitzianus (J. Hall) 



From Victoria we find cited by the same careful author : 

 Nemagraptus gracilis (/. Hall) D. elegans Carruthers 



Dicranograptus ramosus (J. Hall) Diplograptus pristis Hisinger 



D. nicholsoni Hopkinson Cryptograptus tricornis Carruthers 



Dicellograptus cf. sextans J. Hall Climacograptus bicornis J . Hall 



D. anceps Nicholson Lasiograptus sp. 



Associated with these forms are however new species, as Dip lo - 

 graptus thielei and Climacograptus wellingtonensis at 

 Mt Wellington, which give the faunules a provincially different aspect. 



Turning now to the east side of the Atlantic basin, we find that the 



identity of a prominent graptolite zone in Great Britain with the Xormans- 



kill shale was early recognized by Lapworth [1879 an( l 1880]. He states 



[1880, p. 198] of his "5. zone of C o e n ogr a p t u s gracilis Hall (or 



Dicellograptus sextans Hall)" which, by the way, is designated 



as the first of the " Upper Ordovician " : 



This is typically developed in the lower portion of the Glenkiln shales 

 of the south of Scotland. It is the first of the Dicellograptidian zones, ami 

 is well particularized by the peculiar genus Coenograptus. Only a single 

 Dichograptid (D . superstes Lapworth) survives. Dicranograptidae 

 are abundant. Dicranograptus zic-zac Lapworth, D. formosus 

 Hopkinson, Dicellograptus sextans Hall, D. in tortus Lap- 

 worth are peculiar, and several Diplograpti, such as Hallograptus 

 bi mucronatus Nicholson, H.? mucronatus Hall, Diplo- 



