395 
stone, wliieli has been quarried for building purposes ; and below tbis, down to tbe edge 
of a waterbole supplying tbe bouse, is a series of sandstones and argillaceous limestones, 
containing numerous organic remains. 
“These I have submitted to Mr. Etheridge [Senr.], for examination and correla- 
tion, the result of which will appear in the Appendix to my paper; I, however, attach 
hero a summary of the forms determined by him from this locality : — 
Inoceramus marailwnensis, Eth.* 
„ allied to problematicus. 
„ pernoides, Eth. 
„ miiltiplieatus, Stoh, var. elongatus, Eth. 
“ From these beds also came McCoy’s Eeptilia. 
“ The ‘ Marathon ’ Beds, as they may be designated, are undulating, with an 
uncertain dip. Proceeding from ‘ Marathou ’ up the Flinders River (most probably over 
u series of older beds) no clifC-sections are met with; but at Stewart’s wash-pool, on 
the main road, the Avicula hughendenensis, Eth. [_-=Aucella hugliendcnensis, Eth. til.] 
of Hughendon is found in abundance. 
“ At Robert Grey’s HughenJen Station, however, which lies about three miles 
cast of Mount Walker, a series of ealcareo-argillaceous beds crop out, containing a 
marked and well-preserved fauua, indicating no great difference in facies from that of 
Marathon.” 
A section accompanying Daintree’s text “of a cliff on Bett’s Creek, intermediate 
between Marathon and Ilughendeu,” and another “ on the bank of the Flinders,” “ show 
how nearly horizontal the great Mesozoic system of the Flinders remains ; but the 
latter indicates their general dip towards the north-east [north-w’est must be meantj^ 
und therefore places the Ilugheuden Beds below those of Marathon. The observations 
Collected on the journey between these two places give the same result. The paleonto- 
logical evidence is not sufficient to enable Mr. Etheridge [Senr.] to draw any great line 
of demarcation. His determination of the species from the Hughendeu beds is as 
follows : — 
Ammonites Beudanti, D’Orb, var. Milcliellii, Eth. 
„ Baintreei, Eth. 
Avicula hughendenensis, Eth. 
Pecten, &c. 
“ These were obtained from horizontal ealcareo-argillaceous beds, fronting the 
Water-hole where the sheep-wash is placed, about half a mile from the Hughendeu 
Station. The Avicula bed, which is a very marked band, about four inches thick, gives 
by analysis : — 
Kesidue insoluble in IICl, chiefly clay ... ... ... ... ... 17'230 
Ammonia-precipitate, of wliicli 1 '219 per cent, was ferric-oxide ... 9‘368 
Carbonate oflime... ... ... ... ... ... ... 67’888 
Carbonate of magnesia ... ... ... ... ... ... 2‘520 
Undetermined, water, &c. ... ... ... ... ... 2'994 
lOO’OOO 
“ The Hughendeu Cattle-station is twenty miles further up the Flinders than the 
Mughenden Hoad Station. Hero hundreds of Belomnites are strewn over the surface of 
the twm ridges which front the Cattle-station huts, but they are rarely found in the soft 
shales which crop out from under an escarpment of ‘ Desert Sandstone.’ 
*The names quoted here must be understood to be subordinate to those hereafter given by my 
Colleague. 
