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78 results for “Changhsingian”
Fig. 2 in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 2. Palaeogeographic position of the Baghuk Mountain area (after Stampfli & Borel 2002).
Fig. 1 in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 1. Geographic position of Permian–Triassic boundary sections at Baghuk Mountain.
Data from: Bivalves from the Changhsingian (Upper Permian) Bellerophon Formation of the Dolomites (Italy): ancestors of the Lower Triassic post extinction benthic communities
<p><span>The diverse shallow marine fossil assemblages from the Changhsingian Bellerophon Formation of the Dolomites record the late Palaeozoic marine life immediately before the end-Permian mass extinction. Here, based on the collection of c. 6500 bivalve specimens from different localities of the western Dolomites, we have taxonomically classified 26 species, including 10 new species, 3 new genera and 1 new family: <em>Acharax</em> <em>frenademezi</em> sp. nov., <em>Bakevellia</em> (<em>Bakevellia</em>) <em>preromangica</em> sp. nov., <em>Edmondia</em> <em>hautmanni</em> sp. nov., <em>Etheripecten</em> <em>stuflesseri</em> sp. nov., <em>Ladinomya</em> <em>fosteri</em> gen. et sp. nov., <em>Lovaralucina</em> <em>covidi</em> gen. et sp. nov., <em>Palaeolima</em> <em>badiotica</em> sp. nov., <em>Promytilus</em> <em>merlai</em> sp. nov., <em>Tambanella</em>? <em>stetteneckensis</em> sp. nov., <em>Volsellina</em> <em>carinata</em> sp. nov., <em>Gardenapecten</em> gen. nov., Ladinomyidae fam. nov. </span><span>The occurrence of three <em>Eumorphotis</em> species with a different and superimposed stratigraphic distribution led us to propose an upper Permian 'lower <em>Eumorphotis</em> Zone' in contrast to the already known Lower Triassic <em>Eumorphotis</em> Zone which is consequently renamed as 'upper <em>Eumorphotis</em> Zone'. The 'lower <em>Eumorphotis</em> Zone' is divided, in ascending stratigraphic order, into <em>E. praecurrens</em>, <em>E. striatocostata</em> and <em>E. lorigae</em> subzones. </span><span>A palaeoecological analysis of the bivalves contained in each sampled bed has allowed us to recognize 6 biofacies and 4 ecofacies, based on richness, dominance and ecological lifestyle. The bivalves from Bellerophon Formation inhabited lagoonal to nearshore environments affected by stressed conditions, mostly represented by high temperatures, high salinity, shallow water depths, low oxygen and high terrigenous input. The upper Bellerophon Fm is characterized by increasing fully marine conditions, although the occurrence of eurytopic taxa still suggests stressed marine conditions.</span></p>
Data from: Bivalves from the Changhsingian (Upper Permian) Bellerophon Formation of the Dolomites (Italy): ancestors of the Lower Triassic post extinction benthic communities
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A new Changhsingian (Lopingian) brachiopod fauna of the shallow-water clastic-shelf facies from Fujian Province, southeastern China
<p>Although much attention has been paid to Changhsingian brachiopods in South China, there are only two Chinese studies, published in 1979 and 1990, on Changhsingian brachiopods from the southeastern part of South China. Based on systematically collected fossil material, this paper describes and quantitatively analyses a Changhsingian brachiopod fauna from the Luokeng Formation at the Hongtian section, Fujian Province, southeastern China, for the first time. Among the brachiopods (30 species in 18 genera) described and illustrated,<i>Cathaysia yongdingensis </i>Liao and an endemic genus of South China (<i>Qinglongia</i>) are reported in English for the first time. Two new species,<i>Neochonetes</i>(<i>Sommeriella</i>)<i>longa</i>and <i>Neochonetes</i>(<i>Sommeriella</i>)<i>transversa,</i>are also proposed. The Hongtian fauna is mainly composed of <i>Cathaysia </i>(29.4%),<i>Neochonetes </i>(19.3%), <i>Linoproductus</i>(13.5%), <i>Orthothetina</i>(11.7%), and is correlated with the brachiopod fauna from the lower part of the Luokeng Formation in Fujian Province.</p>
Data from: A Changhsingian (late Permian) nautiloid assemblage from Gujiao, South China.
A c. 0.30 m thick cherty limestone bed in the Dalong Formation at Gujiao (Guizhou) yielded a highly diverse Changhsingian nautiloid assemblage. Its age is late Changhsingian, indicated by the co-occurring ammonoid Pseudotirolites sp. This assemblage is composed of nine species and five taxa in open nomenclature in nine genera, including one new genus and three new species: Neotainoceras zhaoi sp. nov., Nodopleuroceras gujiaoense sp. nov. and Gujiaonautilus longliensis gen. nov., sp. nov. Sholakoceras is for the first time recorded in South China. Compared with literature data from 52 sites in various regions worldwide, the material described here presents the most diverse Changhsingian nautiloid assemblage. Among the genera of the Gujiao assemblage, Pleuronautilus, Tainoceras and Liroceras are cosmopolitan, while the others are more endemic or genera known so far only from South China .
Body size and geographic distribution of foraminiferal specimens during the Frasnian-Famennian (Frasnian), Guadalupian-Lopingian (Capitanian), Permian-Triassic (Changhsingian), Triassic-Jurassic (Rhaetian), and Cretaceous-Paleogene (Maastrichtian) mass extinctions.
<p>This dataset is about body size and geographic distribution of foraminiferal specimens during the Frasnian-Famennian (Frasnian), Guadalupian-Lopingian (Capitanian), Permian-Triassic (Changhsingian), Triassic-Jurassic (Rhaetian), and Cretaceous-Paleogene (Maastrichtian) mass extinctions.</p> <p>Foraminiferal body size data collection</p> <p>First, we collected published papers with foraminiferal images from the Frasnian (382.7-372.2 Ma), Capitanian (264.28-259.51 Ma), Changhsingian (254.14-251.902 Ma), Rhaetian (208.5-201.3 Ma), and Maastrichtian (72.1-66.1 Ma). Second, we measured two primary axes of specimens, such as maximum length and height in a conical or cylindrical shell. For some specimens, where there is no way to measure the length of both axes, we calculate the length of the unknown axis based on the aspect ratio of the type species. Third, we used the test volume as a standard indicator of body size, taking into account the diversity of foraminiferal morphology. Finally, the test volumes were calculated on a logarithmic scale with base 10 due to large individual differences, and the specific calculation is shown in Feng et al. (2020).</p>
Data from: A Changhsingian (late Permian) nautiloid assemblage from Gujiao, South China
Open the record for dataset details and reuse information.
A new Changhsingian (Lopingian) brachiopod fauna of the shallow-water clastic-shelf facies from Fujian Province, southeastern China
Open the record for dataset details and reuse information.
Fig. 55 in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 55. Lutites plicatus Korn & Hairapetian gen. et sp. nov. A. Lateral and dorsal view, holotype MB.C.30018, section E, float. B. Suture line, holotype MB.C.30018, 13.7 mm ww, 18.6 mm wh. Abbreviations: see Material and methods. Scale bar units = 1 mm.
Fig. 42 in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 42. Clivotirolites decoratus Korn & Hairapetian gen. et sp. nov., lateral and dorsal views. A. Paratype MB.C.29938, section 1, -1.50 m. B. Paratype MB.C.29944, section E, float. Scale bar units = 1 mm.
Fig. 38 in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 38. Paratirolites quadratus Korn & Ghaderi, 2016. A. Lateral and dorsal view, specimen MB.C.29932, section E, float. B. Suture line, specimen MB.C.29932, at 13.5 mm wh. Abbreviation: see Material and methods. Scale bar units = 1 mm.
Fig. 36 in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 36. Paratirolites aduncus Korn & Hairapetian sp. nov. A. Lateral and dorsal view, paratype MB.C.29900, section C, -2.45 m. B. Suture line, paratype MB.C.29900, at 30 mm ww, 16.0 mm wh. Abbreviations: see Material and methods. Scale bar units = 1 mm.
Fig. 30. Paratirolites kittli Stoyanow, 1910. A in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 30. Paratirolites kittli Stoyanow, 1910. A. Lateral and dorsal view, specimen MB.C.29833, section G, -2.75 m. B. Suture line, specimen MB.C.29833, at 30 mm ww, 16.0 mm wh. Abbreviations: see Material and methods. Scale bar units = 1 mm.
Fig. 6 in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 6. The stratigraphic occurrence of the ammonoid species in the upper part of the Hambast Formation at Baghuk Mountain C section. EH = extinction horizon.
Fig. 35 in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 35 (preceding page). Paratirolites aduncus Korn & Hairapetian sp. nov. A–B. Lateral and dorsal views. A. Holotype MB.C.29894, section B, float. B. Paratype MB.C.29880, section 1, -1.60 m. C. Suture line of holotype MB.C.29894, at 17.3 mm wh. D. Whorl profile proportions. Abbreviation: see Material and methods. Scale bar units = 1 mm.
Linked collectors and determiners for: The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran).
Natural history specimen data linked to collectors and determiners held within, "The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/453c885c-f427-4a38-ab97-dc14b686e126">https://bionomia.net/dataset/453c885c-f427-4a38-ab97-dc14b686e126</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/453c885c-f427-4a38-ab97-dc14b686e126">https://gbif.org/dataset/453c885c-f427-4a38-ab97-dc14b686e126</a>. Formatted as a Frictionless Data package.
Fig. 11 in The Changhsingian (Late Permian) ammonoids from Baghuk Mountain (Central Iran)
Fig. 11. Summary of the stratigraphic occurrence of the ammonoid species at Baghuk Mountain.
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