At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading.

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Legacy product - no abstract available

Legacy product - no abstract available

1st edition Available from GSWA or as a GA Library resource

No abstract available

1st edition Available from GSQ or as a GA Library resource

Well preserved assemblages of plant microfossils have been recovered from Lower Carboniferous sediments - principally or entirely marine in origin and Visean in age encountered in four boreholes in the landward Bonaparte Gulf Basin of Western Australia and Northern Territory. The sediments are representative of the following lithostratigraphic units: Bonaparte Beds (upper portion) and overlying Tanmurra Formation (intersected by Bonaparte Nos 1 and 2 Wells, central basinal province of Bonaparte Gulf Basin, Western Australia); Milligans Beds (Spirit Hill No. 1 Well; Spirit Hill and Milligans No. 1 Bores, all located in the southeastern platform region of the basin, Northern Territory) and overlying Burvill Beds (basal portion) of Milligans No. 1 only. The 55 species of plant microfossils recognized are distributed among 32 genera of trilete sporae dispersae, including one new genus, Exallospora, which is instituted for the reception of distally annulate cingulate forms having typically verrucate sculptural elevations. Twenty-two species are referable (six tentatively so) to previously established taxa. The palynological flora is dominated by the pan-Australian, Famennian to ?mid-Carboniferous species Granulatisporites frustulentus Balme, Hassell (emended herein), which accounts for 44-83 percent of the spore populations. Certain (inevitably subordinate) spore forms, either the same as or closely similar to species known from northern hemisphere Lower Carboniferous sediments, lend confirmation to the Visean age previously adduced from the contained fauna.

This Bulletin describes the trilobite fauna of the Gala Beds, an informally designated stratigraphical unit of late Upper Cambrian age outcropping along the Momedah anticline in the Boulia area, western Queensland. On the basis of their triolobites the Gola Beds are provisionally considered correlatives Franconian to early Trempealeauan interval of North America, and of the Fengshanian of north China, Korea, and Manchuria. Of the 19 genera described below, 10 are new; and of the 25 species, 21 are described for the first time and four are left under open nomenclature owing to lack of material. New taxa are: Pseudagnostus papilio sp. nov., P. clavus sp. nov., Connagnostus junior sp. nov., Distagnostus ergodes gen. et sp. nov., Rudagnostus avius sp. nov., Geragnostus (Micragnostus) acrolebes sp. nov., Richardsonella laciniosa sp. nov., R.(?) kainelliformis sp. nov., Sigmakainel/a translira gen. et sp. nov., S. longilira sp. nov., Kaolishania australis sp. nov., Mansuyites [utilijormis gen. et sp. nov., Palacorona bacculata gen. et sp. nov., Lophosaukia torquata gen. et sp. nov., Eoshumardia cylindrica sp. nov., Del/ea(?) laevis sp. nov., Lorrettina macrops gen. et sp. nov., Crucicephalus ocel/atus gen. et sp. nov., Duplora clara gen. et sp. nov., Golasaphus momedahensis gen. et sp. nov., and Atopasaphus petasatus gen. et sp. Novo Although the fauna is largely new, about one-third of it has affinity with species previously described from North America, notably the pseudagnostinids, richardsonelIinids, and the ptychoparioids Del/ea(?) and Lorrettina. A further third has affinity with east Asian species, in this case the Kaolishaniidae, Saukiidae, and Shumardiidae. Only some agnostids show much affinity with trilobites from South America, Europe, and the USSR.