From 1 - 10 / 516
  • Legacy product - no abstract available

  • 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.

  • BULLETIN 116 is a collection of palaeontological papers,1968

  • The systematic part of this paper is the continuation of my study (bpik, 1958) of the anatomy and concept of the genus Redlichia, presented on the basis of Redlichia forresti from the Negri Group of Western Australia, Redlichia idonea from the Yelvertoft Beds of Queensland, and some other, then unnamed, species. At that time (op. cit., p. 36) the taxonomy of the species was reserved for the future. This paper serves a double purpose-first, in presenting such speciestaxa as can be established from selected and properly preserved material, and second, in establishing a sequence of informal 'biostratigraphic operational units' in advance of a scale of Ordian zones. Such a scale of zones would be premature in view of the difference between the specific composition of Redlichia in Queensland and in the Northern Territory, and because of the incompleteness of data regarding the vertical distribution and specific taxonomy of Redlichia in many sites of the Territory, and the numerous undescribed other fossils of the Ordian of Australia. The fossils are kept in the Museum of the Bureau of Mineral Resources and the specimen numbers (CPC) refer to the Commonwealth Palaeontological (type) Collection.