83 



division of which the tertiary marine deposit at Table Cape is 

 composed. The group is about 80 feet thick where fully ex- 

 posed, and consists of a series of beds of white or gray 

 calcareous sandstone, more or less firmly consolidated. 



Although there are some of the beds in which scarcely any 

 other organism can be seen but the Turritella already referred 

 to ; yet there are others in which organisms are extremely 

 varied and abundant. 



There are also bands frequently occurring throughout the 

 group, some of them can be traced horizontally for about a 

 mile perhaps, in which Cellejwra gamhierensis (Busk) seems 

 to be particularly abundant. 



So much does the latter organism appear to be abound in 

 these bands, that I am of opinion that it is owing to the 

 segregation of the carbonate of lime around this coral, that 

 the great relative hardness of these bands is due. 



The other forms which give a character to these curious 

 bands appear to be Echinodermata and Brachiopoda. Of six 

 distinct species sent to the Rev. J. E. Tenison- Woods for 

 diagnosis.the form resembling Hemipatagas ?';oo Js/^ (Etheridge) 

 (so called after the learned gentleman just referred to) seems 

 to be the most abundant. Among the seven species of 

 Brachiopoda found, the most conspicuous is the fine shell, 

 Waldheimia gamhierensis (Tenison-Woods), also described from 

 specimens supplied by the Rev. J. E. T. Woods, from Mount 

 Gambler, South Australia. The most abundant, however, is 

 a species of Terebratula, resembling a large T. compta {Teri' 

 bratella tenisoni, Tenison-Woods). 



In the less indurated sandstone beds, or between the bands 

 already described, I have discovered 15 or 16 species of Poly- 

 zoa and Corals among which I have been able to recognise 

 many of the Mount Gambler forms, described in " Observa- 

 tions on the Geology of South Australia " by the Rev. J. E. 

 Tenison-Woods, viz., Cellepora numviulina, G. spongiosa, 

 Salicornaria sinuosa, Plachotrochus delioides, P. elongatiis ? 

 Flabellum victoriae t F. gamhierense ? etc., etc. 



As we approach the point of junction with the underlying 

 division we come upon forms common to both divisions, and 

 only distinguished by relative abundance, among which I may 

 mention — Typhis M'Coyi (Tenison-Woods) ; Valuta anti- 

 cinguJata (M'Coy) ; Ancillaria mucronata (Sow) ; Natica 

 Winllei (Tenison-Woods) ; Cucullea cainozoica (Tenison- 

 WoodsJ ; C. Corioensis (M'Coy) ; Fecfinicidus laticostatus 

 (M'Coy) (Tenison-Woods) ; l^ncula ixmida, a small species of 

 Cardita ; a small species of Mgadora ; and two species of 

 Pecten, one of them being an extremely minute species. 



Altogether this group presents a facies so similar to that 



