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Miaolingian

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Journal Article
Published: 01 July 2024
Journal of Paleontology (2024) 98 (4): 537–566.
... correlations, the trilobites from new collections from the upper Nounan Dolomite to lower St. Charles Formation at Smithfield Canyon are reported herein and integrated with the previously reported taxa. Trilobite assemblages indicate that the upper Cedaria to the Ellipsocephaloides biozones (Miaolingian Series...
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Journal Article
Published: 01 July 2024
Journal of Paleontology (2024) 98 (4): 504–536.
... the upper-lower and middle Cambrian (Series 2, Stage 4 to Miaolingian Series, Wuliuan Stage) Mount Cap Formation of the Northwest Territories, Canada ( Fig. 1.1 , 1.2 ), are characterized and quantified. Following this, their phylogenetic position in separate families, Dolichometopidae and Zacanthoididae...
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Journal Article
Journal: GSA Bulletin
Published: 05 December 2023
GSA Bulletin (2024) 136 (7-8): 3479–3484.
... the Cambrian seas, the onset of Miaolingian kerogenous shales does not allow recognizing single terranes; otherwise, the Alum Shale of Baltica would be a lithostratigraphic synonymy of the Manuels River Formation of Avalonia. A terrane should be defined by its basement at the time the basement formed...
Journal Article
Journal: GSA Bulletin
Published: 05 December 2023
GSA Bulletin (2024) 136 (7-8): 3472–3478.
... a regionally extensive cover sequence with thin units (<10 m) and depositional sequence boundaries that show Avalonia was a ribbon microcontinent; and (6) errors in reporting minor to major depositional features. There is no “Miaolingian sealing of inherited paleoreliefs” in Avalonia ( Álvaro et al...
FIGURES
Journal Article
Published: 04 December 2023
Geological Magazine (2023) 160 (9): 1790–1816.
... of the Miaolingian Series, as locally interpreted, of ≤ 506.6 ± 0.3 Ma. The Miaolingian Series’ base is interpreted as correlative within ≤ 0.3 ± 0.3 Ma between Cambrian palaeocontinents, although its exact synchrony is questionable due to taxonomic problems with a possible Oryctocephalus indicus -plexus, invariable...
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Journal Article
Published: 01 September 2023
Journal of Paleontology (2023) 97 (5): 1025–1048.
...Julien Kimmig; Stephen Pates; Rhiannon J. LaVine; L.J. Krumenacker; Anna F. Whitaker; Luke C. Strotz; Paul G. Jamison; Val G. Gunther; Glade Gunther; Matt Witte; Allison C. Daley; Bruce S. Lieberman Abstract The Cambrian (Miaolingian; Wuliuan) Spence Shale Lagerstätte of northern Utah and southern...
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Journal Article
Published: 19 May 2023
Canadian Journal of Earth Sciences (2023) 60 (9): 1307–1326.
..., and the global, latest Wuliuan Stage, middle Miaolingian Series ( Geyer 2019 ) ( Fig. 2 ). The biostratigraphy in Saskatchewan is broadly similar to that which has been documented in northwest and south-central Montana and northwest Wyoming ( Schwimmer 1973 , 1975 ), although the biozones there have been...
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Journal Article
Journal: Palynology
Published: 16 January 2023
Palynology (2023) 47 (1): 2115574.
...Vojtěch Kovář; Oldřich Fatka; Jakub Vodička Abstract Monogeneric clusters of five acritarch genera ( Adara , Cymatiosphaera , Eliasum , Synsphaeridium and Timofeevia ) were discovered in palynological residues obtained from fine-grained siliciclastic samples from the middle Cambrian (Miaolingian...
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Journal Article
Journal: GSA Bulletin
Published: 30 August 2022
GSA Bulletin (2023) 135 (5-6): 1225–1242.
... to marginal rift branches. Terreneuvian‒Miaolingian third-order sequences of the Caledonian Highlands, New Brunswick, Canada, reflect a complex interplay among syn-rift tectonic events, denudation pulses, and sea-level fluctuations. Unconformably overlying the early, rift-related volcanosedimentary Coldbrook...
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Journal Article
Published: 01 May 2022
Journal of Paleontology (2022) 96 (3): 611–630.
...M. Franco Tortello Abstract The Museo de La Plata houses numerous Miaolingian and Furongian fossils from the southern Precordillera of Mendoza, western Argentina, collected by Ángel V. Borrello during the 1960s. Early Miaolingian (Wuliuan) trilobites from these collections are described herein...
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Journal Article
Published: 01 January 2022
Journal of Paleontology (2022) 96 (1): 152–163.
... Cambrian (Miaolingian Series; Wuliuan Stage) Spence Shale Member of the Langston Formation is exposed in northeastern Utah in the Wellsville Mountains and Wasatch Range, and in southeastern Idaho in the Bear River Range. The Spence Shale Member is assigned to the Albertella and Glossopleura trilobite...
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Journal Article
Published: 01 January 2022
Journal of Paleontology (2022) 96 (1): 61–80.
...Yue Liang; Lars E. Holmer; Xiaolin Duan; Zhifei Zhang Abstract A moderately diverse assemblage of brachiopods from the Latham Shale Lagerstätte (Cambrian Series 2, upper Stage 4) and the upper Cadiz Formation (Miaolingian, Wuliuan), California is described in detail for the first time. The fauna...
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Journal Article
Published: 01 July 2020
Journal of Paleontology (2020) 94 (4): 624–636.
.... This is because various taxa have been either assigned to known phyla or accommodated in larger monophyletic assemblages. Nevertheless, a number of Cambrian taxa retain their enigmatic status. To this intriguing roster we add Dakorhachis thambus n. gen. n. sp. from the Miaolingian (Guzhangian) Weeks Formation...
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Journal Article
Published: 24 April 2020
Geological Magazine (2020) 157 (12): 2051–2066.
... , Multiplicisphaeridium llynense and Eliasum llaniscum , diagnostic of the Miaolingian Series. This coincides with the disappearance of Skiagia ; occurrences of Skiagia in Miaolingian strata consist of reworked material related to the Hawke Bay regression at the Cambrian Stage 4–Wuliuan transition. The absence of Skiagia...
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Journal Article
Published: 12 December 2019
Canadian Journal of Earth Sciences (2020) 57 (1): 16–24.
... (Miaolingian Series) of the Wuliuan Stage. The type species, Polypleuraspis solitaria Poulsen, 1927, is compared with Polypleuraspis insignis Rasetti, 1951 from the Stephen Formation (Burgess Shale Formation) of British Columbia and to a new species from the Telt Bugt Formation of Daugaard-Jensen Land...
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Data for the upper Cambrian (upper Miaolingian and Furongian)–lower Ordovician Alum Shale Formation of the Albjära-1 core. (A) Trilobite biostratigraphy and carbon-isotope ratios (δ13C) of total organic carbon (TOC) (Zhao et al., 2022a). (B) Mercury content; regression outliers are marked with an asterisk (*). (C) TOC-normalized Hg. (D) Mercury and TOC mass accumulation rates (MAR). (E) Molybdenum content (Zhao et al., 2022b); 3 cm moving average. (F) Sedimentary Re and 192Os content. (G) Osmium-isotope (187Os/188Os) ratio at time of deposition, Osi. Carbon-isotope excursion abbreviations, as recognized in Zhao et al. (2022a): SPICE—Steptoean positive carbon-isotope excursion; U/LPSS—upper and lower Peltura scarabaeoides spike; TOCE—top of Cambrian excursion; APS—Acerocarina positive spike; COBS—Cambrian-Ordovician boundary spike.
Published: 26 October 2023
Figure 2. Data for the upper Cambrian (upper Miaolingian and Furongian)–lower Ordovician Alum Shale Formation of the Albjära-1 core. (A) Trilobite biostratigraphy and carbon-isotope ratios (δ 13 C) of total organic carbon (TOC) ( Zhao et al., 2022a ). (B) Mercury content; regression outliers
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Published: 01 October 2023
Table 2 - Occurrence of the upper Cambrian (Miaolingian-Furongian) and acritarch taxa in the Filladi inferiori Fm and middle-upper Permian (Guadalupian-Lopingian) sporomorph taxa in the metabreccia, metasandstone and metapelite unit (a: abundant, >10; c: common <10 and >2; r: rare, 1
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Malformed Elrathia kingii (Meek, 1870), Wheeler Formation (Miaolingian, Drumian): (1, 2) MWC 9972, House Range outcrop: (1) complete specimen; (2) detail of abnormality in box in (1) showing large W-shaped indentation; (3, 4) FHPR 16640, Drum Mountains outcrop: (3) complete specimen; (4) detail of abnormality in box in (3) showing V-shaped indentation (dotted white line, white arrow). All specimens coated. All images converted to grayscale.
Published: 01 July 2022
Figure 4. Malformed Elrathia kingii (Meek, 1870 ), Wheeler Formation (Miaolingian, Drumian): ( 1, 2 ) MWC 9972, House Range outcrop: ( 1 ) complete specimen; ( 2 ) detail of abnormality in box in ( 1 ) showing large W-shaped indentation; ( 3, 4 ) FHPR 16640, Drum Mountains outcrop: ( 3
Image
Dakorhachis thambus n.gen. n.sp. from the Weeks Formation (Miaolingian, Guzhangian), Utah, USA. Scanning electron micrographs in backscatter mode of polished sections. (1, 2) UU15101.07: (1) fossil body composed of radiating fans of a chloritic mineral with pseudomorphs of pyrite across upper surface; (2) detail of fossil body and pseudomorphs. (3–6) UU15101.08: (3) tooth, composed of calcite; (4) tooth and surrounding fossil body; (5) two teeth and surrounding fossil body, including pyrite pseudomorphs; (6) fossil body with stacked chloritic mineral. Scale bar = 50 μm.
Published: 01 July 2020
Figure 2. Dakorhachis thambus n.gen. n.sp. from the Weeks Formation (Miaolingian, Guzhangian), Utah, USA. Scanning electron micrographs in backscatter mode of polished sections. ( 1, 2 ) UU15101.07: ( 1 ) fossil body composed of radiating fans of a chloritic mineral with pseudomorphs of pyrite
Image
Dakorhachis thambus n. gen. n. sp. from the Weeks Formation (Miaolingian, Guzhangian), Utah, USA. (1) UU15101.02 (upper) and UU15101.03 (lower); (2) UU15101.04; (3) UU15101.05 (upper) and UU15101.06 (lower); (4) BPM1090; (5) UU15101.01 (holotype); (6) UU18056.27; (7) UU17122.03; (8) UU18056.28. (1–5) Specimens photographed dry. (6–8) Specimens immersed in dilute ethanol. (1, 5) Scale bars = 5 mm; (2–4, 6–8) scale bars = 2 mm.
Published: 01 July 2020
Figure 3. Dakorhachis thambus n. gen. n. sp. from the Weeks Formation (Miaolingian, Guzhangian), Utah, USA. ( 1 ) UU15101.02 (upper) and UU15101.03 (lower); ( 2 ) UU15101.04; ( 3 ) UU15101.05 (upper) and UU15101.06 (lower); ( 4 ) BPM1090; ( 5 ) UU15101.01 (holotype); ( 6 ) UU18056.27; ( 7