36 Transactions. 
related to Permian forms from the Salt Range of India, and from the 
Guadalupian fauna of New Mexico." No eastern Australian forms are 
present. In Keidel’s (1922) recent work (for the translation of which the 
writer is indebted to Professor Elder) the marine beds in the Pre-Cordillera 
of the western Argentine, supposed by Stappenbeck (1910) to be of Upper 
Carboniferous or later age on account of the presence of a form resembling 
Spirifera supramosquensis, are shown to be interstratified with tillite, and 
to contam a number of other species of Spirifera, Dielasma, and other 
brachiopods, Pleurotomaria, and several other gasteropods, all rather imper- 
fectly preserved and not yet specifically determined. This group of glacial 
and marine beds has been traced for about a hundred kilometres north and 
south, and throughout has been thrust to the east on to the Gondwanan 
continental massif. It appears, however, to have been deposited uncon- 
formably on the Lower Carboniferous and earlier Palaeozoic beds that 
form the western margin of that massif. Keidel terms these glacial and 
marine beds the Tontal series, and correlates them with the Permian beds of 
Australia. Some unnamed marine fossils of this age have been found by 
Oliveira and recorded by Woodworth (1912) from Rio Negro in south-eastern 
Brazil, and in south-western Africa Conularia and the Indian form Eury- 
desma globosum have been found by Schroeder (1909) associated with the 
Dwyka tillite. There is thus no clear evidence of the migration of marine 
forms during the Permo-Carboniferous period along a hypothetical Southern 
Pacific Gondwanaland coast between Australasia and South America 
We return to consider the Permo-Carboniferous or Permian record їп. 
age of the Maitai series was at first influenced by the supposed presence 
of Aphanaia therein, a form belonging to the “ Upper Marine ” series of 
New South Wales, in which also the other New Zealand forms are 
represented, excepting Spirifera cf. bisulcata, which occurs in the Lower 
Marine beds but more usually in the Lower Carboniferous, and Rhynchonella 
or the “ Aphanaia” of Trechmann, are widespread in the greywackes 
throughout the South Island, and in default of better evidence may be 
taken characterizing “ Maitai” rocks in several regions in South 
Canterbury and North Otago, and 
Professor Park (1921) has recently 
PME to the same series, at the northern end of the Livingstone 
ange, west of Lake Wakatipu. In these he noticed the presence of 
ure corals and gasteropods. The suggestion 
