Late Silurian (Ludlow) and Early Devonian (Pragian) conodonts from the Cobar Supergroup, western New South Wales, Australia

Mathieson, David; Mawson, Ruth; Simpson, Andrew; Talent, John A.

doi:10.3140/bull.geosci.1593

Cited by 12 publications

(14 citation statements)

References 19 publications

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“…The P 1 elements of Z. paucidentata and Z. petrea share a gap between the cusp and the denticles at the (conventional) posterior part of the element, but according to Murphy & Matti (1982), the gap in Z. paucidentata is followed by up to four reduced denticles. They are only slightly developed or absent; and followed by a two, three of four denticles on the posterior part, but none of Legend: 1 -Coal Canyon, Nevada (Murphy & Matti 1982); 2 -Rancho Placeritos area, west-central Sonora, Mexico (Boucot et al 2008); 3 -Mount Michelson, Alaska, USA (Blodgett et al 1988); 4 -Podolia, Ukraine ; 5 -Prague Synform, Czech Republic (Hušková & Slavík 2020); 6 -Carnic Alps, Austria (Suttner et al 2007, this contribution); 7 -South Urals, Russia (Mavrinskaya & Slavík 2013); 8 -Peshawar Basin, Pakistan (Mawson et al 2003); 9 -Western New South Wales, Australia (Mathieson et al 2016). • B -stratigraphic range of Lower Devonian taxa described as "Zieglerodina paucidentata", "Zieglerodina cf.…”

Section: Zieglerodina Petrea and Z Paucidentata: Comparison And Relationshipsmentioning

confidence: 99%

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Morphologically distinct P1 elements of Zieglerodina (Conodonta) at the Silurian- Devonian boundary: review and correlation

Hušková¹,

Slavík²

2021

Bull. Geosci.

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In many parts of the world, the base of the Devonian is generally characterized by the prevailing onset of carbonate sedimentation. The index fossil for the base of the Lochkovian is the graptolite Monograptus uniformis Přibyl, 1940; however, because of dominating carbonates, the lowermost Devonian stratigraphy must rely on other faunal groups, especially conodonts. Owing to their abundance in carbonate successions and their global distribution, in many cases conodonts are the only faunal group that permits recognition of the Silurian-Devonian boundary (corresponds to the conodont hesperius-optima Zone). In many studies over the past decades conodont zonations for the uppermost Přídolí and the lowermost Lochkovian had been established (e.g.

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Section: Zieglerodina Petrea and Z Paucidentata: Comparison And Relationshipsmentioning

confidence: 99%

“…Ozarkodina paucidentata Mathieson et al (2016) Caudicriodus ampliatus Mathieson et al, 2016; Eognathodus sulcatus lanei Mathieson et al, 2016;Oz. selfi Lane & Ormiston, 1979;Panderodus unicostatus (Branson & Mehl, 1933); Wurmiella excavata (Branson & Mehl, 1933); Z. remscheidensis (Ziegler, 1960).…”

Section: Speciesmentioning

confidence: 99%

Morphologically distinct P1 elements of Zieglerodina (Conodonta) at the Silurian- Devonian boundary: review and correlation

Hušková¹,

Slavík²

2021

Bull. Geosci.

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“…Видовой таксон Oz. multistriola Mathieson et al ранее был известен только из девона Австралии (Mathieson et al, 2016). В то же время, следует отметить, что публикации последних лет показывают, что в комплексах конодонтов переходных слоев между лудфордом и пржидолом, некоторые таксоны, например, установленный на Алтае вид Ozarkodina eosteinhornensis (Walliser), могут появляться в разрезах, относимых к самым верхам верхнелудфордскому подъяруса, то есть, стратиграфически несколько ниже нижней границы пржидольского отдела силура (Corriga et al, 2009;Corradini, Corriga, 2010;Slavik, Carls, 2012;Kaljo et a., 2014;Slavik et al, 2014;Huskova, Slavik, 2019).…”

Section: новая биостратиграфическая информация по верхней части силура горного алтаяunclassified

“…Анализ опубликованных данных по стратиграфическому распространению конодонтовых таксонов в интервале лудфорда и пржидола (Murphy et al, 2004;Boncheva et al, 2007;Corriga, Corradini, 2009;Corriga et al, 2009;Corradini, Corriga, 2010;Slavik et al, 2010Slavik et al, , 2014Slavik, Carls, 2012;Spiridonov, Brazauskas, 2014;Mathieson et al, 2016;Spiridonov et al, 2018Spiridonov et al, , 2020 на современном этапе изучения позволяют отдать предпочтение интерпретации возраста верхней части разреза куимовской свиты в разрезе Марагда-5 началом пржидольского века.…”

Section: новая биостратиграфическая информация по верхней части силура горного алтаяunclassified

Строение И Биостратиграфическая Характеристика Пржидольского Отдела Силура На Горном Алтае

2020

GiG

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Приведены новые сведения по лито-и биостратиграфии верхнего силура Горного Алтая. В осадочных образованиях этого стратиграфического интервала в Алтайском регионе установлена последовательность таксономически представительных комплексов конодонтов -средневерхнелудфордский, нижнепржидольский и нижнедевонский (лохковский-?пражский). На основе этих данных составлена новая схема сопоставления границ местных и региональных стратонов пограничных силурийско-девонских отложений Горного Алтая с ярусными границами Международной стратиграфической шкалы. Определено, что границы местных стратонов и границы базирующихся на них региональных стратиграфических подразделений силура Алтая не совпадают с границами отделов и ярусов Международной стратиграфической шкалы.

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“…To the southeast, the Lachlan Orogen (Figures c and ) comprises Cambro‐Ordovician turbiditic successions, an Ordovician to Silurian volcanic belt (Macquarie Arc; Figure b) and Silurian to Devonian granitic rocks (Foster & Gray, ; Fraser et al, ; Glen et al, , ; VanderBerg et al, ). In addition, there are widespread late Silurian to Devonian basins south of the Olepoloko Fault (Darling Basin) and in the Koonenberry Belt (Bancannia Trough; Figure c; Bembrick, ; Mathieson et al, ; Neef, ). Interpretation of a deep seismic transect across the Thomson‐Lachlan boundary (Figure d) suggests that the deposition of the Darling Basin was initiated in a synrift tectonic setting during the Silurian to Early Devonian and was followed by inversion of major structures during the Middle to Late Devonian (Abdullah & Rosenbaum, ).…”

Section: Geological Settingmentioning

confidence: 99%

Devonian Crustal Stretching in the Northern Tasmanides (Australia) and Implications for Oroclinal Bending

Abdullah

Rosenbaum

2018

JGR Solid Earth

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The Tasmanides in eastern Australia exhibit a number of orogenic curvatures (oroclines), and possibly, a continental‐scale bend that defines the continuation of the Delamerian Orogen with the Thomson Orogen. We provide an insight into the geodynamic processes associated with the origin of this orocline. We present interpretations of seismic reflection profiles and potential field data from the Thomson Orogen, which provide information on the crustal architecture and unravel major structures and kinematic relationships. Results show that a large area in the northern Tasmanides is underlain by thinned crust, bounded in the north and south by ~E‐W trending geophysical features with apparent sinistral and dextral sense of kinematics, respectively. Within the highly extended crust of the Thomson Orogen, there is evidence for widespread Devonian basins bounded by normal faults. In stark contrast to the southern Tasmanides, where rocks show evidence for an earlier (Silurian) episode of extension and Devonian contractional deformation, no evidence for Silurian synrift sedimentation is observed in the Thomson Orogen. Evidence for ~E‐W trending sinistral and dextral crustal‐scale shear zones in the northern and southern boundaries of the Thomson Orogen, respectively, may represent tear faults, which were active during the Early Devonian and were possibly accompanied by tear‐related magmatism. We suggest that crustal stretching in the northern Tasmanides was associated with Devonian back‐arc extension in response to trench retreat, bounded by zones of slab‐tearing and crustal segmentation that ultimately led to the development of the Delamerian‐Thomson Orocline.

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Late Silurian (Ludlow) and Early Devonian (Pragian) conodonts from the Cobar Supergroup, western New South Wales, Australia

Cited by 12 publications

References 19 publications

Morphologically distinct P1 elements of Zieglerodina (Conodonta) at the Silurian- Devonian boundary: review and correlation

Morphologically distinct P1 elements of Zieglerodina (Conodonta) at the Silurian- Devonian boundary: review and correlation

Строение И Биостратиграфическая Характеристика Пржидольского Отдела Силура На Горном Алтае

Devonian Crustal Stretching in the Northern Tasmanides (Australia) and Implications for Oroclinal Bending

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