Journal of Palaeogeography最新文献

{"title":"Microfacies and palaeoenvironments of late Cisuralian and Guadalupian (Early to Middle Permian) alatoconchid-bearing limestone in Loei fold belt, Indochina Terrane","authors":"Mongkol Udchachon ,&nbsp;Hathaithip Thassanapak ,&nbsp;Clive Burrett ,&nbsp;Seksan Chaidrusamee ,&nbsp;Michał Krobicki ,&nbsp;Pradit Nulay","doi":"10.1016/j.jop.2024.03.003","DOIUrl":"10.1016/j.jop.2024.03.003","url":null,"abstract":"<div><p>This study presents the first record of Early Permian alatoconchid bivalves from Thailand, the Erawan section, in the north of Loei fold belt with prolific fusulines in association with gastropods, and brachiopods. Fusuline taxa are dominated by <em>Pseudofusulina</em> sp. with <em>Darvasites</em> sp., <em>Staffella</em> cf. <em>labanalensis</em>, <em>Staffella</em> sp., <em>Nankinella</em> sp., <em>Neofusulinella</em> sp., <em>Schubertella</em> sp., <em>Pamirina darvasica</em>, <em>Pseudoendothyra</em> sp. and others, indicating an Artinskian age. Fusuline wackestone with common, well-preserved smaller foraminifers, <em>Pseudovermiporella</em> sp. and ostracods indicates a restricted lagoon environment with low to moderate water circulation. These fossils, along with well-preserved, articulated alatoconchids in life-position, suggest the autochthonous nature of the deposits in an intertidal environment.</p><p>In the central part of the fold belt, the Pak Chong section exhibits intervals of alatoconchid biostromes and coquinites. Carbonate build-ups of the alatoconchid biostromes with gregarious bivalves, in life-position embedded in a micritic wackestone matrix, suggest their preferred life habit and environment. The bivalve coquinites containing packed bivalve shells and fragments, however, indicate a high-energy event. This rock fabric along with common fusuline storm sheets suggests occasional storm events in a restricted, with moderate water circulation to open lagoon environment. Fusulines are predominated by staffellids and others including <em>Staffella sphaerica</em>, <em>Staffella</em> sp., <em>Sphaerulina croatica</em>, <em>Pisolina subsphaerica</em>, <em>Nankinella</em> sp., <em>Neoschwagerina simplex</em>, <em>Presumatrina</em> sp., <em>Afghanella</em> sp. and others, indicating a Wordian (Middle Permian) age.</p><p>In the southern portion of the fold belt along the Thai-Cambodian border, the Khao Taa Ngog section contains limestone with alatoconchid shells with massive rugose corals which formed local carbonate build-ups in high-energy open platform environments. Poorly-sorted bioclasts with common fusuline tests, shell fragments and coated grains suggest an open marine, lagoon, back reef environment. The occurrence of a fusuline assemblage including <em>Neoschwagerina</em> sp., <em>Yabeina</em> sp., <em>Lepidolina</em> sp., <em>Codonofusiella</em> sp., <em>Verbeekina verbeeki</em> and <em>Chusenella</em> sp. indicates the Capitanian (late Middle Permian) age.</p></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 3","pages":"Pages 453-474"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095383624000245/pdfft?md5=355a80f064e8adfc9f9a893ae73e118e&pid=1-s2.0-S2095383624000245-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140573966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scree conglomerate and its derivatives in the Upper Cretaceous Kallankurichchi Limestone, Ariyalur Group, Cauvery Basin, South India","authors":"Shilpa Srimani","doi":"10.1016/j.jop.2024.03.004","DOIUrl":"10.1016/j.jop.2024.03.004","url":null,"abstract":"<div><p>The repetitive influx of coarse clastics of mixed composition, siliciclastics and carbonates, locally common in the lower part of the Upper Cretaceous marine Kallankurichchi Limestone specifies a resurgence of tectonic unrest in the Cauvery rift basin, India. The basin-margin scree and its derivatives elicit diverse modes of emplacement and differ in many ways from denoting it only as basal conglomerate. The study meticulously reveals the depositional history of these basin-margin coarse clastics. The scree conglomerate bodies are wedge-shaped in appearance and often have flat, eroded tops. At places, their surfaces, tops and flanks, are encrusted with <em>Inoceramus</em> although internally, they are mostly unfossiliferous. They are clast-supported and extremely poorly sorted, having interstitial spaces filled by sand-sized grains at the basal part. The clasts can be traced into the underlying Sillakuddi Sandstone and the granitic basement. The clasts derived from the sandstone are angular and measure up to 60 cm in length, while the basement-derived clasts dominate the smaller (maximum diameter measured 5 cm) and more rounded population. The elongated clasts are chaotically arranged, even oriented sub-vertically, reclining on other clasts. The lowermost scree conglomerate has a sharp base, and the pebbles sunk into the underlying sandstone, although no discernible impact laminae wrapping their bottom were ever observed. Evidently, the scree fans were initiated under the sea, which permitted the slow sinking of assorted rock fragments dropped from above. The sporadic occurrence of marine fossils further corroborates this contention. The scree conglomerates at different stratigraphic levels transitioned laterally into conglomerates of mass flow origin and then to massive calcarenite, together forming wedge-shaped bodies. The initial alignment of clasts parallel to bedding transforms to a chaotic alignment representing the transition from internally sheared flow to debris flow and associated shapes. Matrix-supported fabric grades into massive calcarenite, suggesting gravity-driven transformation. Further down the wedge, the massive calcarenite turns into cross-stratified facies, making it evident that laminar flow turned turbulent in the course of body transformation of the sediment-driving flows. It can be presumed that these flows were triggered by subsidence, which resulted from renewed gaps in formation and led to the collapse of scree cones. Facies variability suggests scree deposits giving way downslope to debris flow and related deposits. Eventually, all the scree products pass laterally into the carbonate formation basinwards.</p></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 3","pages":"Pages 495-508"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095383624000269/pdfft?md5=d2b37bce8390ec682dddba4bda17fb63&pid=1-s2.0-S2095383624000269-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140403483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Earliest megafossils of scandent calamoid palms from the Deccan Intertrappean Beds of Central India and their paleobiogeographic implications","authors":"Sanchita Kumar ,&nbsp;Kaustav Roy ,&nbsp;Robert A. Spicer ,&nbsp;Mahasin Ali Khan","doi":"10.1016/j.jop.2024.05.001","DOIUrl":"10.1016/j.jop.2024.05.001","url":null,"abstract":"<div><p>Two well-preserved petrified palm stems from the latest Maastrichtian (Late Cretaceous) to earliest Danian (Early Paleocene) sediments of the Deccan Intertrappean Beds of Madhya Pradesh, Central India are described. Their significant anatomical characteristics include a Calamus-type general stem pattern, the presence of well-preserved fibrovascular bundles (fvbs) with two wide metaxylem vessel elements (230 μm–250 μm) and one phloem strand, uniform density of fvbs, lack of continuity between protoxylem and metaxylem vessel elements, and an absence of centrifugal differentiation of sclerenchymatous fibrous parts. These features reveal a close resemblance to those of extant genera of scandent Calamoideae. The permineralized stems are described as a new species namely, <em>Palmoxylon calamoides</em> Kumar, Roy et Khan sp. nov. The fossils represent the oldest reliable fossil records of this family, supporting their Gondwanan origin, their importance in tracing their migration pathways from India to Europe and other continents after the docking of the Indian subcontinent with Eurasia during the Paleocene, and an “Out-of-India” dispersal hypothesis. Today the subfamily Calamoideae is disjunctly occurred in Africa, Asia, Australia, Europe, and South America, but the poor deep-time fossil record of this subfamily with a small number of Cenozoic fossils makes hypotheses concerning its origin and dispersal difficult to evaluate. The present study has significant implications for the origin and migration of this subfamily and the paleoclimate.</p></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 3","pages":"Pages 509-527"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095383624000348/pdfft?md5=dc3b9eda089c9bfc0cba1d85ecbb49da&pid=1-s2.0-S2095383624000348-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141057349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geochemistry and mineralogy of beach sediments in the northern Gulf of Mexico, Tamaulipas state, Mexico: implication for provenance","authors":"Mayank Shukla ,&nbsp;Sanjeet K. Verma ,&nbsp;Mayla A. Ramos-Vázquez ,&nbsp;John S. Armstrong-Altrin ,&nbsp;Karla R. Hernández-Martínez ,&nbsp;Sumit Mishra ,&nbsp;Vivek P. Malviya ,&nbsp;Héctor Hernández-Mendoza","doi":"10.1016/j.jop.2024.05.002","DOIUrl":"10.1016/j.jop.2024.05.002","url":null,"abstract":"<div><p>Geochemical and mineralogical studies were performed in the La Pesca (LP) and Tesoro Altamira (TA) beach sediments, located in the Tamaulipas state, northern Gulf of Mexico. The main aim of this study is to infer the weathering history and provenance and to discriminate the tectonic environment of the beach sediments. The sediments are composed of quartz with small amounts of accessory minerals such as plagioclase, calcite, orthoclase, microcline, and zircon. Both beach sediments are classified as fine-grained and very well sorted, however LP has coarse skewed and leptokurtic sediments, whereas TA has fine-skewed and very leptokurtic sediments. The chemical index of weathering (CIW’) indicates intense weathering in the source area. The quartz grain microtextures in the LP and TA are classified into mechanical, chemical, and mechanical/chemical origin. Mechanical features such as fractures, pits, percussion marks, abrasion fatigue, and V-shaped marks favor high-energy littoral, fluvial, subaqueous-marine, and aeolian environments. The chemical features indicate solution pits and crystalline overgrowth, which suggests a silica saturated marine environment. The mechanical/chemical features display adhering particles and elongated depressions suggest formation in a sub-aqueous nearshore marine environment. Major and trace elements-based provenance discrimination diagrams indicate a felsic source derived from the Mesa Central (MC), Sierra Madre Oriental (SMOr) and Oaxaquia terranes. The major and trace element concentrations imply a passive margin setting for the northern Gulf of Mexico, which is consistent with the general geology.</p></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 3","pages":"Pages 375-400"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S209538362400035X/pdfft?md5=915273efc2e961a2128443ad3125c2c8&pid=1-s2.0-S209538362400035X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141058355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Global paleobiogeography of Albian–Cenomanian (mid-Cretaceous) marine ostracods","authors":"Bernardo Vázquez-García ,&nbsp;Jorge Villegas-Martín ,&nbsp;Gerson Fauth ,&nbsp;Leonardo Borghi ,&nbsp;Aristóteles De Moraes Rios Netto","doi":"10.1016/j.jop.2024.02.002","DOIUrl":"10.1016/j.jop.2024.02.002","url":null,"abstract":"<div><p>Despite their potential for providing important information for paleobiogeography, studies using ostracod assemblages compiled from global datasets have been scarce so far. In this study, the paleogeographic implications of the relationship between different ostracod assemblages are analyzed and discussed for the Albian and Cenomanian. We compiled an ostracod dataset at the genus level, with 168 genera for the Albian and 174 for the Cenomanian, to which different multivariate statistical methods of grouping were applied. The affinity between different ostracod assemblages from different regions allowed for the delineation of 30 operational geographic units (OGUs) for the Albian, and 32 OGUs for the Cenomanian, grouped in three paleobiogeographic units (PBUs; Megatethys, Persia, and Austral) and one sub-unit (PBSU; Maghreb associated to the Megatethys). The Maghreb PBSU showed minor changes between the Albian and Cenomanian. The relationship among the OGUs grouped in each PBU is related to different factors, such as eustatic sea level events, similar climatic zones, and marine current circulation patterns. A relationship was observed between the Gabon and Nigeria OGUs with the Persia PBU, which suggests a direct east<strong>–</strong>west connection between them during the Cenomanian. The affinity observed in the Austral PBU between the South American, South African, and Australian regions during the Albian can be explained by their relative geographic isolation due to the Walvis Ridge barrier. The eventual flooding of this barrier led to the relationship observed between the SE Brazilian and Bolivian regions with the Austral PBU. Finally, the data also suggested that the separation of the Indian subcontinent from the Austral PBU took place during the Cenomanian.</p></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 2","pages":"Pages 212-236"},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095383624000075/pdfft?md5=0da81baf40dfe530e711933cbab237d8&pid=1-s2.0-S2095383624000075-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140182026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cyclicity of the Lower Buntsandstein in the eastern part of the Central European Basin: implications for Early Triassic palaeogeography and for geochronological calibration","authors":"Anna Becker","doi":"10.1016/j.jop.2024.01.002","DOIUrl":"10.1016/j.jop.2024.01.002","url":null,"abstract":"<div><p>Lower Buntsandstein small–scale cycles recognized in the Central European Basin (CEB) are readily used for astrochronological calibration of the Early Triassic time scales, although they are not well studied sedimentologically. Three borehole sections from the eastern part of the CEB, forming a south-north transect perpendicular to the basin axis, were studied in terms to better understand the depositional history of the Lower Buntsandstein developed as the Baltic Formation in the studied Polish part of the basin. Eleven sedimentary facies were recognized, based on lithological and sedimentological investigations of 655.7 m of drill cores from the Otyń IG 1, Gorzów Wielkopolski IG 1 and Kamień Pomorski IG 1 boreholes. The facies can be grouped according to a lithological criterion into facies of predominantly siliciclastic lithology (including 9 facies types) and facies of predominantly carbonate lithology (including 2 facies types). Facies analysis allowed to distinguish 8 facies associations of: 1) alluvial fan, 2) playa, 3) sandy-muddy coastal plain, 4) embayment and distal delta, 5) lagoon, 6) sand bars or shoals, 7) ooidal shoals or bars, and 8) offshore. Deepening-upward (DC) and shallowing-upward (SC) sedimentary cycles were recognized in parts of the Baltic Formation, with DCs dominating in the southernmost located Otyń IG 1, and SCs dominating in Gorzów Wielkopolski IG 1, located in the axial part of the basin. Symmetrical cycles are very rare. The statistical significance of the sedimentary cycles is relatively low according to Markov-chain analysis conducted with the phpSedistat software of Stanova <em>et al.</em> (2009). Analysis of small–scale cycles performed on well logs of investigated boreholes and additional boreholes in the vicinity of Otyń IG 1, implementing the earlier study of Becker (2005), showed that the correlation of well-log cycles (GR cycles) and sedimentary cycles is not obvious. GR cycles can be roughly correlated with lithological carbonate–siliciclastic cycles (c-s cycles), reflecting alternations of facies groups of predominantly carbonate and siliciclastic lithology. Calibration of GR cycles to earlier magnetostratigraphic results of Nawrocki (1997) and Becker and Nawrocki (2014) showed that neither the boundaries of GR cycles serve as reference horizons, nor the cycles document equal time periods. All existing depositional models of the Lower Buntsandstein were discussed, stressing the possible simultaneous interaction of allochthonous and autochthonous processes. Moreover, the tectonic overprint of the Central European Basin system during the Early Triassic should be taken into account. The presented results suggest that the Lower Buntsandstein cyclicity of the CEB cannot serve as a basis for astrochronological analysis.</p></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 2","pages":"Pages 252-292"},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095383624000026/pdfft?md5=1f53f5a276f84fd9cf628236e8551cb0&pid=1-s2.0-S2095383624000026-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139457632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Marinoan glaciation in the Indian subcontinent - Anatomy and global implications","authors":"H.N. Bhattacharya","doi":"10.1016/j.jop.2024.01.004","DOIUrl":"10.1016/j.jop.2024.01.004","url":null,"abstract":"<div><p>Detailed sedimentological analysis of the Pokaran Boulder Bed, representing the most basal unit of the Neoproterozoic-Lower Cambrian Marwar Supergroup, clearly indicates its glacial origin. The glacial sediments are interpreted as an ice-contact submarine fan deposit. Based on the detrital and inherited zircon population of the Marwar Supergroup sediments and interlayered pyroclastic deposits, a Marinoan cryochron of the Cryogenian Period is envisaged for the Pokaran Boulder Bed. The well-preserved Ediacaran elements in the post-glacial sedimentary succession also support a Cryogenian to Early Cambrian age of the Marwar Supergroup. The glacial deposition at the base of the Marwar Supergroup strengthens the regional correlation between the studied sediments with the Lesser Himalayan Blaini-Krol-Tal sediments and the Haqf Supergroup of Oman. The available zircon ages and paleomagnetic data of the Malani Igneous suite, along with the Marinoan glacial deposits, detrital zircon ages, and Ediacaran fossil elements of the Marwar Supergroup add significant information to the Neoproterozoic Earth history.</p></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 2","pages":"Pages 293-308"},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S209538362400004X/pdfft?md5=068f19cfd226bd129f46e26a8473a4e2&pid=1-s2.0-S209538362400004X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139482299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “The new ichnotaxon Eubrontes nobitai ichnosp. nov. and other saurischian tracks from the Lower Cretaceous of Sichuan Province and a review of Chinese Eubrontes-type tracks” [Journal of Palaeogeography (10) (2021) 17]","authors":"Li-Da Xing ,&nbsp;Martin G. Lockley ,&nbsp;Hendrik Klein ,&nbsp;Li-Jun Zhang ,&nbsp;Anthony Romilio ,&nbsp;W. Scott Persons IV ,&nbsp;Guang-Zhao Peng ,&nbsp;Yong Ye ,&nbsp;Miao-Yan Wang","doi":"10.1016/j.jop.2023.05.005","DOIUrl":"10.1016/j.jop.2023.05.005","url":null,"abstract":"","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 2","pages":"Page 372"},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095383623000573/pdfft?md5=67a6e57038a1d6c2e0cda922ccdf730c&pid=1-s2.0-S2095383623000573-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88622201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Untangling the biotic stress in the late Maastrichtian Deccan-benchmark interval of Bidart (France)","authors":"Subham Patra ,&nbsp;Gerta Keller ,&nbsp;Eric Font ,&nbsp;Thierry Adatte ,&nbsp;Jahnavi Punekar","doi":"10.1016/j.jop.2024.02.003","DOIUrl":"10.1016/j.jop.2024.02.003","url":null,"abstract":"<div><p>The late Maastrichtian witnessed substantial surges in Deccan volcanism, prompting the hypothesis that these voluminous pulses may have instigated repeated episodes of ocean acidification during this period. The Cretaceous-Palaeogene (K/Pg) boundary at Bidart (France) is preceded by a ∼0.5 m thick interval with geochemical and taphonomic vestiges of an ocean acidification event linked with Deccan volcanism. New planktic foraminifera census and morphometric data now confirm biotic stress conditions related to acidification in the Deccan benchmark interval. The absolute abundance data of larger (&gt;150 μm) heavily calcified planktic morphogroups show fluctuating populations throughout zone CF1 (spanning the final ∼225 ky), lowest peaks within the Deccan benchmark, and a demographic collapse (&gt;90%) at the K/Pg boundary. The analyzed species are generally reduced in size, with thinner test walls in this ∼0.5 m interval, indicating the likelihood of calcification stress as a contributor to the overall biotic stress. At the K/Pg boundary, maximum biotic stress is recorded in all the tested faunal proxies. A preliminary graphic correlation of zone CF1 at Bidart with the auxiliary GSSP at Elles (Tunisia) constrains the Deccan benchmark interval of high biotic stress to the final ∼58 ky of the late Maastrichtian, culminating in the K/Pg mass extinction. The volcanogenic Hg peaks coincident with faunal and taphonomic evidence of ocean acidification strengthen the Deccan-related ocean acidification hypothesis.</p></div>","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 2","pages":"Pages 181-198"},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095383624000087/pdfft?md5=ab403197c8e676998147b9d22731a779&pid=1-s2.0-S2095383624000087-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140311172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Frenguellia (Lycopsida) from the uppermost Devonian of West Junggar, Xinjiang Uygur Autonomous Region, NW China, and its implications on protolepidodendralean leaf morphology and paleophytogeography” [Journal of Palaeogeography 12(2) (2023) 263–277 (00298)]","authors":"Bing-Cai Liu ,&nbsp;Kai Wang ,&nbsp;Rui-Wen Zong ,&nbsp;Jiao Bai ,&nbsp;Ning Yang ,&nbsp;Yi Wang ,&nbsp;Hong-He Xu","doi":"10.1016/j.jop.2023.07.002","DOIUrl":"10.1016/j.jop.2023.07.002","url":null,"abstract":"","PeriodicalId":100819,"journal":{"name":"Journal of Palaeogeography","volume":"13 2","pages":"Page 373"},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095383623000731/pdfft?md5=3a3cf554dd92abb0c4d6e8c0201a725d&pid=1-s2.0-S2095383623000731-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81449469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}