2005, Paterson, John R

The taxonomy of Discomesites and Estaingia from the Lower Cambrian Cymbric Vale Formation of western New South Wales is revised. Discomesites is regarded as a valid subgenus of Pagetides. Pagetides (Discomesites) fragum is considered a senior subjective synonym of P. (D.) lunatulus. Pagetides (Discomesites) spinosus from the Shackleton Limestone in the Holyoake Range, Transantarctic Mountains, is considered to be a junior subjective synonym of P. (D.) fragum. Estaingia cerastes from the Cymbric Vale Formation is considered to be synonymous with Hsuaspis cf. H. bilobata from the Shackleton Limestone. The Cymbric Vale Formation trilobite fauna is of late Early Cambrian (late Botoman) age, equivalent to the Pararaia janeae Zone of South Australia, based on correlation of the Syringocnema favus archaeocyathan fauna. Absolute ages of recently dated tuffs from the Cymbric Vale and Billy Creek Formations are questioned, based on new information regarding the stratigraphic position of the Cymbric Vale Formation tuff in relation to archaeocyathan and trilobite biostratigraphy. The co-occurrence of Pagetides (Discomesites) fragum and Estaingia cerastes in the upper part of the Cymbric Vale Formation and in the Shackleton Limestone represents the first species-level correlation between the Lower Cambrian of Australia and Antarctica using trilobites. The distribution of these trilobite species, in association with the Syringocnema favus archaeocyathan fauna, provides supporting evidence that Australia and Antarctica were connected by a continuous carbonate-detrital shelf during the late Early Cambrian (mid-late Botoman),allowing faunal exchange between these regions.

2005, Paterson, John R

Taxonomy of the Cambrian trilobite family Nepeidae is revised. Morphometric analyses of the genera 'Nepea' and 'Penarosa' demonstrate that use of proportions of linear dimensions of the cranidium to differentiate species is invalid, and that infrageneric variation is continuous. The taxonomy and biostratigraphy of all Australian species of Nepeidae is revised. Species considered valid herein include: 'Nepea narinosa' (type species), 'N. tonsillata', 'N. nans', 'Penarosa retifera' (type species), 'P. elaticeps', 'P. rhinodelphis', 'P. netenta', 'Loxonepea loxophrys' (type species) and Ferenepea hispida (type species). Folliceps is considered to be a junior subjective synonym of 'Nepea', 'Trinepea' is regarded as a junior subjective synonym of 'Penarosa', and Ascionepea is considered to be a junior subjective synonym of Ferenepea.

2012, Jago, James B, Gehling, James G, Paterson, John R, Brock, Glenn A, Zang, Wenlong

The lower Cambrian sediments of the Flinders Ranges, South Australia can be divided into three sequence sets. They rest unconformably on the Ediacaran succession. Sequence set ϵ1 comprises lower clastic units overlain by a carbonate dominated marine succession that shows marked lateral and vertical facies changes. Sequence sets ϵ2 and ϵ3 together comprise a largely clastic dominated succession of marginal marine to non-marine sediments with subordinate shallow marine carbonates. Sequence set ϵ1 is richly fossiliferous at some levels with biostratigraphy established for trilobites, archaeocyaths, brachiopods, small shelly fossils, acritarchs and molluscs. The Emu Bay Shale Lagerstätte (Cambrian Series 2) from the north coast of Kangaroo Island occurs within a clastic-rich shelf succession dominated by conglomerate and sandstone. The fossil content is dominated by trilobites in terms of relative abundance and currently over 50 taxa are known including, Anomalocaris, the bivalved arthropods 'Isoxys' and 'Tuzoia', the nektaspids 'Emucaris' and 'Kangacaris', the megacheiran 'Oestokerkus' amongst a variety of other arthropods. Other common taxa include palaeoscolecid worms, 'Myoscolex', sponges, hyoliths, brachiopods, a vetulicolian and several other enigmatic forms. The oldest known well preserved complex arthropod eyes occur in this biota.

2004, Paterson, John R, Laurie, John R

An early Late Cambrian (late Mindyallan-Idamean) trilobite fauna is described from limestone bodies in the Dolodrook River area, eastern Victoria. Seven taxa are referred to previously described species: 'Innitagnostus inexpectans' (Kobayashi, 1938), 'Pseudagnostus idalis' Öpik, 1967, 'Corynexochus plumula' Whitehouse, 1939, 'Rhyssometopus thielei' (Chapman, 1911), 'Eugonocare tessellatum' Whitehouse, 1939, 'Protemnites magnificans' Shergold & Webers, 1992 arid 'Meteoraspis etheridgei' (Chapman, 1911), seven taxa are left under open nomenclature: 'Idolagnostus ?agrestis' Öpik, 1967, Peratagnostus aff.'invalidus' (Lu & Lin, 1989), 'Amrnagnostus' sp., 'Tomagnostella' sp., 'Pterocephaliid?' gen. et sp. indet., Tsinaniid gen. et sp. indet. 1 and Tsinaniid gen. et sp. indet. 2, and one represents a new species: 'Mindycrusta oepiki' sp. nov. 'Protemnites' Whitehouse, 1939 is considered to be a senior subjective synonym of 'Prismenaspis' Henderson, I976a. Two trilobite assemblages are recognised: the 'Protemnites' Assemblage aid the 'Mindycrusta' Assemblage. The Protemnites Assemblage is interpreted as representing an autochthonous assemblage inhabiting a moderate to high energy, inner shelf (peritidal) environment. The Mindycrusta Assemblage represents a parautochthonous assemblage inhabi ing a low to moderate energy, open ocean-facing, outer shelf to upper slope environment.

2006, Jago, James B, Zang, Wen-Long, Sun, Xiaowen, Brock, Glenn A, Paterson, John R, Skovsted, Christian B

Cambrian rocks in South Australia occur in the Stansbury, Arrowie, eastern Officer and Warburton Basins. The succession in the Stansbury and Arrowie Basins can be divided into three sequence sets (supersequences), C1, C2 and C3. Sequence set C1 can be divided into five third-order sequences: C1.0, C1.1A, C1.1B, C1.2 and C1.3. Trilobites from the Stansbury and Arrowie Basins are restricted largely to the lower part of the succession. Four trilobite zones are recognized: 'Abadiella huoi' (latest Atdabanian–earliest Botoman), 'Pararaia tatei', 'Pararaia bunyerooensis' and 'Pararaia janeae' Zones (all Botoman). Trilobites higher in the succession are known from only a few horizons and in part correlate with the upper Lower Cambrian Lungwangmiaoan Stage of China, equivalent to the top Toyonian. 'Pagetia sp.' has been reported in the Coobowie Formation of the Stansbury Basin, thus suggesting an early Middle Cambrian age. The Cambrian faunas of the Warburton Basin range in age from early Middle Cambrian (Late Templetonian) to very Late Cambrian, although the richest faunal assemblages are late Middle Cambrian ('Ptychagnostus punctuosus to Goniagnostus nathorsti' Zones). Conodonts, including 'Cordylodus proavus', occur in a Datsonian fauna. The Arrowie Basin contains the most complete and best studied archaeocyath succession in the Australia–Antarctica region. The 'Warriootacyathus wilkawillensis', 'Spirillicyathus tenuis' and 'Jugalicyathus tardus' Zones from the lower Wilkawillina Limestone (Arrowie Basin) and equivalents are correlated with the Atdabanian. Botoman archaeocyathids occur higher in the Wilkawillina Limestone. The youngest (Toyonian) archaeocyath fauna in Australia occurs in the Wirrealpa Limestone (Arrowie Basin). Brachiopods and molluscs of the Arrowie and Stansbury Basins can be divided into four biostratigraphic assemblages. Several informal Early Cambrian SSF biostratigraphic assemblages are recognized. Probable tabulate-like corals occur in the Botoman Moorowie Formation. Seven informal acritarch assemblages occur in the Early Cambrian of the Stansbury and Arrowie Basins. Trace fossils may mark the Precambrian–Cambrian boundary. Only two of several tuffaceous horizons from the Stansbury and Arrowie Basins have been dated (i) a date of 522.0 ± 2.1 Ma from the Heatherdale Shale of the Stansbury Basin, about 400m above latest Atdabanian archaeocyathids and (ii) a date of 522.0 ± 1.8 Ma from the lower part of the Billy Creek Formation in the Arrowie Basin. Neither date is regarded as reliable.

2003, Paterson, John R, Brock, Glenn A

Two new late Early Ordovician orthide brachiopods, 'Celsiorthis bulancis' n.gen. and n.sp. and Alocorthis psygmatelos n.gen. and n.sp., are described from the Tabita and Pingbilly formations at Mount Arrowsmith, northwestern New South Wales. The associated conodont assemblage from the succession at Mount Arrowsmith indicates a late Bendigonian to Chewtonian age for the brachiopod bearing horizons.

2014, Laurie, JR, Paterson, JR, Brock, GA

The Memoir series publishes peer reviewed papers on all aspects of palaeontology and its applications in the earth and biological sciences, including taxonomy, biostratigraphy, vertebrate and invertebrate palaeontology, palaeoichnology, palaeobotany, palynology, palaeobiology, palaeoecology, palaeobiogeography and biogeochemistry among others. The Memoir series is designed for longer monographic treatments, but will also consider thematic sets of papers and commonly publishes conference proceedings.

2009, Laurie, John R, Brock, Glenn A, Paterson, John R

The Memoirs series publishes peer reviewed papers on all aspects of palaeontology and its applications in the earth and biological sciences, including taxonomy, biostratigraphy, vertebrate and invertebrate palaontology, palaeoichnology, palaeobotany, palynology, palaeobiology, palaeoecology, palaeobiogeography and biogeochemistry among others. The Memoir series is designed for longer monographic treatments, but will also consider thematic sets of papers and commonly publishes conference proceedings.

2011, Laurie, J R, Paterson, John R, Brock, G A

The Memoir series publishes peer reviewed papers on all aspects of palaeontology and its applications in the earth and biological sciences, including taxonomy, biostratigraphy, vertebrate and invertebrate palaeontology, palaeoichnology, palaeobotany, palynology, palaeobiology, palaeoecology, palaeobiogeography and biogeochemistry among others. The Memoir series is designed for longer monographic treatments, but will also consider thematic sets of papers and commonly publishes conference proceedings.

2007, Paterson, John R, Brock, Glenn A

Trilobites from the Lower Cambrian succession at Angorichina in the eastern Flinders Ranges, South Australia, are described. Silicified material from the Mernmerna Formation reveals the presence of a new assemblage from the 'Pararaia bunyerooensis' Zone, including the eponymous species, 'Yorkella' aff. 'australis, Eoredlichia' sp. 'Redlichia' sp., and the new species 'Wutingaspis euryoptilos' and 'Yunnaocephalus macromelos'. Trilobites of the 'Pararaia bunyerooensis' Zone show a strong affinity with those from the Yu'anshan Member of the Heilinpu Formation in Chengjiang and Jinning Countries, Yunnan Province, southwest China. The 'Pararaia bunyerooensis' Zone is correlated with the 'Yunnanocephalus' Assemblage subzone (upper 'Eoredlichia-Wutungaspis' Zone) of the Chiungchussuan (=Qiongzhusian) Stage of China. Additional trilobites from Angorichina include 'Elicicola calva' from the Wilkawillina Limestone, 'Estaingia occipitospina' (Jell) new combination form the Oraparinna Shale, and 'Redlichia guizhouensis' Zhou from the Wirrealpa Limestone. Australian Early Cambrian trilobite biozonation is reviewed, with discussion of distinct assemblages within the 'Pararaia janeae' Zone that have the potential for zonal subdivision, and evidence to support the placement of the northern Australian Ordian/Early Templetonian Stage within the late Early Cambrian. A possible paedomorphic lineage between 'Pararaia bunyeriiensis' and 'P. janeae' is proposed. Adult specimens of 'P. janeae' retain juvenile characteristics of the progenitor 'P. bunyerooensis'. Retardation in onset of maturity in 'P. janeae' resulted in the attainment of a larger adult size than in P. bunyerooensis', indicating the former species evolved via neoteny.