The Victorian naturalist . s the possibihty offinding the remains of amphibians inthe same rocks is enhanced. The initial discovery was made byus in March 1975. It consisted of afew fragments of bones which wereembedded in float boulders of a toughconglomeratic sediment in the GenoaRiver. In nearby red shales, plant re-mains were also discovered (identi-fied by G. A. Thomas as Lepto-phloeum australe). In January 1976, three of us (Al-ston, Bennett and Stainforth) re-turned to the area with the hope offinding in-situ material. Such in-situmaterial was located and the as-sociated stratigraphy do
The Victorian naturalist . s the possibihty offinding the remains of amphibians inthe same rocks is enhanced. The initial discovery was made byus in March 1975. It consisted of afew fragments of bones which wereembedded in float boulders of a toughconglomeratic sediment in the GenoaRiver. In nearby red shales, plant re-mains were also discovered (identi-fied by G. A. Thomas as Lepto-phloeum australe). In January 1976, three of us (Al-ston, Bennett and Stainforth) re-turned to the area with the hope offinding in-situ material. Such in-situmaterial was located and the as-sociated stratigraphy documented(figure 1). With the aid of two Uni-versity of Melbourne research stu-dents, prehminary sampUng of thein-situ material was conducted. In ad-dition, the area between this localityand that of the footprints wasmapped. The lack of access into the areamakes work difficult. Although thearea is one of open forest, the onlyfeasible route into the fossil bone * Company Geologists withUrangesellschaft of Australia Pty. MarchApril 59 locality involves an arduous walkthrough the thick scrubby terrain ofthe deeply entrenched Genoa River,of which several crossings have to bemade. (In 1971 a helicopter was usedto remove material from the footprintlocahty.) The fossiliferous outcrop sampledis on an east bank of the river and isin the form of an overhang. Thebones are contained in a 25 cm thickmedium grained sand to conglomeraticlens. This lens is overlain directly by3 m of very massive, coarsely cross-bedded, medium fine grained, redsandstone. Underlying the lens, inorder of stratigraphic descent, is45 cm of green silty shale, approxi- mately 2 m of red silt and then at least12 m of fissile, deep red, fine siltysandstone. Associated with the bone bearinglens and the green and red silty sedi-ments immediately underlying it, is adegree of secondary copper enrich-ment (predominantly malachite). Inparticular the malachite occasionallylines joints and fractures and fillscores of much
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Keywords: ., bookcentury1800, bookdec, booksubjectnaturalhistory, bookyear1884
