606 
In 1869 the late Eev. W. E. Clarke reported* the discovery of a femur of a 
btruthious Bird, subsequently named by Owen Dromornis australis, at the depth of 
188 feet in drift resting on granite, from a well in' that part of Peak Downs which 
lies between Lord’s Table Mountain and the head of Theresa Creek, near the track 
from Clermont to Broad Sound. The bone was found in a deposit of drift pebbles and 
boulders one hundred and fifty feet thick, overlaid by thirty feet of black trappean 
alluvial soil. 
In the same communication, Mr. Clarke says, “In some of the creeks running more 
to the south-eastward from the Peak Downs, and, like Theresa Creek, belonging to the 
McKenzie Elver system {e.g., Crinum Creek), occur bones of Trionyx and Crocodile." 
The late Mr. E. Daintree, iu his Paper on the Geology of Queensland,t says 
“Prom the Gulf of Carpentaria, in the north, to Darling Downs, in the south, 
the tossil remains of extinct mammalia have been found in breccias and indurated 
muds, which are representatives of the beds of old watercourses, through which the 
present creeks cut their channels. At Maryvale Creek, in Latitude 19° 30' South good 
seebons of these old brecciated alluvia occur. The fossils from this section, as determined 
by Professor Owen, ara-.—Diprotodon australis. Macropus Titan, Thylacoleo, Phascolomys, 
iaototherium. Crocodile teeth, &c.J 
“ Imbedded in the same matrix occur several genera of mollusca of species 
undistinguishable from those inhabiting the Maryvale Creek. My friend and late 
colleague, Mr. Eobert Etheridge, jun., has compared these with the Eeeent forms, and 
finds them to consist of — 
“ Gasteropoda.— J felaw/n! pagoda, M. area, M. suhimbricata, M. masta, M. sp., 
Limncea rimosa, Physa truncata, P. sp.§ 
“ Lamelltbeanchiata.— C orimw/a australis; TJnio, sp. 
“ The fact of these older alluvia forming both the bed and banks of the present 
watercourse .... goes to prove that Diprotodon and its allies inhabited the 
Queensland valleys when they presented little difference in physical aspect or elevation 
from that of the present time. The Crocodile {Crocodilus australis-), however, had then 
a greater range inland than it has now. 
“ A study of these Biprotodon-'bTQccias leads to the conclusion that the remains 
were chiefly entombed in what were the most permanent ‘ waterholes ’ in seasons of 
excessive drought, and that the animals came there in a weak and exhausted state to 
drink and die, just as bullocks do under similar conditions at the present time. 
“No human bones, flint-flakes, or any kind of native weapon have yet been dis- 
covered with the extinct mammalia of Queensland.” 
j Geological Features of the South-eastern District of 
QueenslaiM, j| Mr. A. C. Gregory gives the following description of the “Older Alluvial 
or Possil Drift — 
, . . deposit is restricted to the valleys descending westerly from the main range 
ividing the waters flowing to the east coast from those which flow westerly to the 
Darling and Murray Elvers. Its limits are not well defined ; but it forms the banks of 
the present watercourses, near the summit of the range, and extends down them to the 
• Geological Magazine (1869), iv., p. 383. 
+ Quart. Joum. Geol. Soo. 1872, xxviii., p. 274. 
by my Colleague (see Post-Tertiary Organic Remains) as follows :-C'roco<iil«s 
poiosus; Diprotodon australis, Owen; Macropus Titan, Owen. 
Adams and Colleague (itid.) as i6\\o^na -.-CorUeula nepeanensis, -Losson, Melania onca, 
II Brisbane : by Authority : 1879. 
