376 
^. 1892.—Prof. Tate described 19 both Molluscan and Trilo- 
bite remains from another locality on Yorke Peninsula, Curra- 
mulka. The latter were called Microdiscus subsagittatus and 
Olenellus pritehardi. Both at this locality and at the typical 
one, Ardrossan, Tate regarded the beds as Lower Cambrian or 
"'Olenellus Zone," formerly termed by him Lower Silurian. 
1895.—On the downs, five miles to the northward of 
Alexandria Cattle Station, Playford Creek, Northern Terri- 
tory, in sinking a well, soft argillaceous rocks were met with to 
a depth of 200 feet. In the spoil from this well Mr. H. Y. 
. Brown, the Government Geologist, found a Trilobite 
eéphalon.(4) This I described as Olenellus browni.09 The 
discovery and determination of this fossil, found in 1894, wes 
the Northern Territory.06 Mr. Brown cites a number of 
localities at which the lithological characters of this limestone 
formation are similar, and concludes by saying :—‘‘The occur- 
rence of Cambrian fossils near the Daly River and Alexandria 
Station proves that these widely-separated expanses of lime- 
stone are identical in age." 07 “He had, however, previously 
stated his conviction that the limestone seen “at the Daly 
Telegraph Station, the Katherine River, and down the View 
toria River was a continuation of that struck at the Alexandria 
Cattle Station bore." Q9 In this limestone at the Katherine 
iver, . H. J. Jensen stated r. Brown found both 
Salterella hardmani and Olenellus forresti, but I am not 
acquainted with Brown's reference. 
1896.—In 1896 appeared a paper by myself in which I 
suggested the presence of Cambrian rocks at Mount Ida, near 
Heathcote, in Victoria, basing my opinion on the presence of 
some fragmentary but very interesting remains, to whic 
gave the name of Dinesus ida. (09 
_ 1902.— Two additional Trilobites from a further Cam- 
brian locality, about 150 miles south-west of Alexandria Old. 
Cattle Station, were obtained by Mr. Brown, and described 
_.43) Tate: Trans. R. Soc. S. Austr., xv., pt. ii., 1892, p. 183, 
pl. ii., figs. 9, 11-13. 
09 Brown: “Report N. Territory Explorations," S. Austr. 
Parl. Papers, No. 82, 1895, p. 24, chart E 
05) Etheridge: “Of. Contrib. Pal. S. Austr," No. 9, S. 
ap Dur Papers, No. 127, 1897, p. 13, pl. i., fig. 1. 4 
16 Brown: “Northern Territory, ete., Reports Geological an 
pe ee S. Austr. Parl. Papers, No. 35. 1906, p. 14. 
19 Brown: ‘Report N. Territ orations”’ S. Austr. 
; No. 82. 1895, * - ey Explorations, 
Etheridge: Proe. Roy. Soc. Vict., viii. (n.s.), 1896, p. 56. 
