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Systematics, Biostratigraphy And Evolution Of The Late Ludlow And Pridoli (Late Silurian) Graptolites Of The Yass District, New South Wales, Australia, R B. Rickards, Anthony J. Wright Jan 1999

Systematics, Biostratigraphy And Evolution Of The Late Ludlow And Pridoli (Late Silurian) Graptolites Of The Yass District, New South Wales, Australia, R B. Rickards, Anthony J. Wright

Faculty of Science, Medicine and Health - Papers: part A

Graptolites from the Yass district of New South Wales include important material from: low in the Black Bog Shale; from the Yarwood Siltstone Member; 2 levels high in the Black Bog Shale; 2 levels low in the Rosebank Shale; low in the Cowridge Siltstone; and in the lower part of the Elmside Formation. The faunas from the lower 4 levels are late Ludlow (early Late Silurian), and the higher 4 levels are Prídolí (late Late Silurian). Twenty-seven graptolite taxa, a considerable increase on previous records from Yass, have been identified in the late Ludlow and Prídolí of the district. These …


A Giant New Trimerellide Brachiopod From The Wenlock (Early Silurian) Of New South Wales, Australia, Des L. Strusz, Ian G. Percival, Anthony J. Wright, J W. Pickett, A Byrnes Jan 1998

A Giant New Trimerellide Brachiopod From The Wenlock (Early Silurian) Of New South Wales, Australia, Des L. Strusz, Ian G. Percival, Anthony J. Wright, J W. Pickett, A Byrnes

Faculty of Science, Medicine and Health - Papers: part A

Keteiodoros bellense n.gen. and n.sp. is a remarkably large trimerellide brachiopod from the Wenlock Dripstone Formation, southeast of Wellington, central New South Wales. The probable articulatory mechanism is unusual for trimerellides. It apparently involved both flattened sections of the lateral commissures which acted as pivots for opening and closing the shell, and a large and strongly modified articulating plate (which partly envelopes a robust dorsal umbo) articulating with the pseudointerarea at the posterior end of the ventral platform. The heavy dorsal umbo probably acted as a counterbalance to the anterior part of the valve; the diductor muscles were apparently attached …


Graptolite Zonation In The Late Wenlock (Early Silurian), With A New Graptolite-Brachiopod Fauna From New South Wales, R B. Rickards, Anthony J. Wright Jan 1997

Graptolite Zonation In The Late Wenlock (Early Silurian), With A New Graptolite-Brachiopod Fauna From New South Wales, R B. Rickards, Anthony J. Wright

Faculty of Science, Medicine and Health - Papers: part A

The Panuara Formation at Cobblers Creek near Orange, New South Wales, Australia has yielded a graptolite-brachiopod fauna assigned to the sherrardae sub-Biozone (late Wenlock: Early Silurian). The sherrardae sub-Biozone as defined here is equivalent to the praedeubeli subBiozone, and is the lowest part of the ludensis Biozone. The ludensis Biozone is reappraised following restudy of the type specimens of Monograptus ludensis, which are shown to exhibit growth stages from the deubeli to the gerhardi condition. The graptolite fauna consists of Gothograptus chainos Lenz, G. marsupium Lenz, Pristiograptus jaegeri Holland, Rickards & Warren, Pristiograptus dubius (Suess), Monograptus ludensis (Murchison), Monograptus moorsi …


Scruttonia (Rugosa, Cnidaria) From The Devonian Of Western Australia, Anthony J. Wright Jan 1991

Scruttonia (Rugosa, Cnidaria) From The Devonian Of Western Australia, Anthony J. Wright

Faculty of Science, Medicine and Health - Papers: part A

Phillipsastrea delicatula Hill. 1936. from probably the early Frasnian (early Late Devonian) of the Lennard Shelf, Western Australia. is assigned to the cosmopolitan rugose coral genus Scruttonia. Its occurrence there supports the previously reported cosmopolitan nature of Late Devonian rugose coral faunas and the faunal similarities between eastern and Western Australia in the Devonia.


A New Early Devonian Spinose Phacopid Trilobite From Limekilns, New South Wales: Morphology, Affinities, Taphonomy And Palaeoenvironment, Anthony J. Wright, W Haas Jan 1990

A New Early Devonian Spinose Phacopid Trilobite From Limekilns, New South Wales: Morphology, Affinities, Taphonomy And Palaeoenvironment, Anthony J. Wright, W Haas

Faculty of Science, Medicine and Health - Papers: part A

Paciphacops (Paciphacops) crawfordae n.sp. is a distinctive spinose phacopid trilobite of late Pragian (Early Devonian) age from the deepwater, dysaerobic Rosedale Shale, Limekilns district, New South Wales. It is characterised by short occipital, genal and intergenal spines on the cephalon, and short thoracic spines on the axial rings and pleurae. Various combinations of such spines are developed in P. (Paciphacops) serratus Foerste (Lochkovian, New South Wales; Ludlovian, Kazakhstan?) and P. (Paciphacops) claviger Haas (Siegenian, Nevada), but the three species cannot be shown to be related.


A New Species Of The Brachiopod Notanoplia (Notanopliidae) From The Early Devonian Of New South Wales, Anthony J. Wright Jan 1981

A New Species Of The Brachiopod Notanoplia (Notanopliidae) From The Early Devonian Of New South Wales, Anthony J. Wright

Faculty of Science, Medicine and Health - Papers: part A

Notanoplia mitchelli sp. nov., a new notanopliid brachiopod, is described from Bowning, N.S.W., probably from the Lochkovian (Early Devonian) Elmside Formation. The distinctive genus is known only from Early and Middle Devonian rocks, and is known from Australia and Western Europe, and possibly from China.


Evaluation Of A New Zealand Tremadocian Trilobite, Anthony J. Wright Jan 1979

Evaluation Of A New Zealand Tremadocian Trilobite, Anthony J. Wright

Faculty of Science, Medicine and Health - Papers: part A

Dionide hectori Reed, 1926, is shown on the basis of new collections from the type area in New Zealand to be a Tremadocian ceratopygide close to Hysterolenus. The species was placed in Taihungshania by Kobayashi (1941). It was provisionally retained in the Taihungshaniidae by Lu (1975) who made hectori type species of a new genus Hectoria (non Hectoria Trechmann, 1918). Ruapyge nom.nov. is proposed here for the reception of hectori. The original length/width ratio is determined by Wellman's method, with little consistency in results. Data from the strain ellipses constructed by Wellman's method are then used to calculate values for …