67 
NEWER SILURIAN FOSSILS OF EASTERN VICTORIA, 
PART I. 
By Frederick Chapman , A.L.S., 6r»c., Palceontologist to the National 
Museum , M elhourne. 
THE FOSSILIFEROUS SANDSTONES AND CONGLOMERATES OF THE 
UPPER THOMSON AND ABERFELDY RIVERS, MOUNT BAW BAW. 
QUARTER SHEET No. 22 N.W. (NEW SERIES). 
Bell’s Track, (no. 37 on locality map.) 
Lithological Characters.—Specimens Nos. 5 to 26, from Bell’s Track, 
are, generally speaking, fine-grained pale yellowish to brown sandstone. 
The rocks contain a little white mica and a few sub-angular quartz pebbles; 
they are highly fossiliferous, but the fossils are fragmentary and badly 
preserved, occurring chiefly as, hollow casts with a thin limonitic stain. 
Fossil Determinations. 
Specimen Number. 
10, 15, 25 
11, 12, l6 
7, 9, I 8 , 21 
17 
5 
8 
• • • • • • 
14 
• • • • 
7 , 12, 16, 19, 20, 
22, 23^ 24, 25 
24 
19 
10, 15, 16, 20 
5 • • • • • 1 
Fossils, with Remarks thereon. 
Crinoid columnars, 4 mm. in diameter; articular 
surface coarsely, radiately striate in the peri¬ 
pheral zone. 
Crinoid columnars, 9 mm. in diameter, approxi¬ 
mately ; articular surface radiately striate and 
granulate. 
(?) Strophomena or (?) Stropheodonta . Frag¬ 
ments only. 
Chonetes cresswelli , Chapm. 
Chonetes sp. Referable to the section “ pli- 
cosse,” of which C. mucronata, J. Hall is an 
example. 
Chonetes sp.— cf. C. acutiradiata, J. Hall; or 
perhaps young example o'f C. cresswelli. 
( ?) Camarotcechia sp.— cf. C. decemplicata , Sow. 
sp. 
Fragments of brachiopods, indeterminable. 
Spjrifer sp. 
(?) Nucula sp. An internal cast, showing some 
of the teeth of a taxodont hinge-line. 
Fragments of trilobites—indeterminable. 
(?) Proetus sp. Portion of a cephalon. 
Waterloo Gully, Thomson River. (No. 38 on Locality Map.) 
Lithological Characters. —Nos. 27 and 28 are fossiliferous conglomer¬ 
ates, with included pebbles of quartz, and chips of indurated mudstone. 
The rock shows a distinctly bedded structure, and it is largely composed of 
remains of crinoids, brachiopods and monticuliporoids, chiefly as casts in 
a limonitic material. 
Nos. 29 to 38 are fossiliferous sandstones, with numerous remains of 
crinoids and brachiopods. The rock is well stratified, and usually shows 
signs of current-bedding. It is darker in colour than the preceding (Nos. 
27, 28), and shows some quartz and numerous fragments of shale. Some 
of these rocks have undergone a certain amount of thrusting, as shown by 
their sheared character, and distortion of the included brachiopods. 
The nature of these rocks points to their having been deposited in very 
shallow water. 
D 2 
