The Halimedides record in the Asturian Basin (northern Spain): supporting the Toarcian Oceanic Anoxic Event relationship

Abstract Recent ichnological analysis conducted in two sections (Rodiles and Lastres) of the Asturian Basin revealed the presence of Halimedides Lorenz von Liburnau 1902, which occurs just above the black shales related to the end of the Toarcian Oceanic Anoxic Event (T-OAE). Halimedides is associated with recovery of the trace-maker community after the re-establishment of favourable, oxic, conditions. The appearance of Halimedides after the T-OAE event, previously not registered, supports the close relationship of the trace maker with oxygen conditions, as occurs in other anoxic events including the Cretaceous OAE-1a and OAE-2. Also, a relationship between morphometric and palaeoenvironmental parameters is observed: occurring larger and densely chambered specimens in darker, weakly oxygenated facies, while smaller and sparsely chambered forms are registered in lighter, better oxygenated sediments.

[1]  L. V. Duarte,et al.  Kerogen assemblages and δ13CKerogen of the uppermost Pliensbachian–lower Toarcian succession of the Asturian Basin (northern Spain) , 2020 .

[2]  O. Mathieu,et al.  Diagenetic and environmental control of the clay mineralogy, organic matter and stable isotopes (C, O) of Jurassic (Pliensbachian-lowermost Toarcian) sediments of the Rodiles section (Asturian Basin, Northern Spain) , 2020 .

[3]  F. Rodríguez-Tovar,et al.  Ichnological analysis of the Cenomanian–Turonian boundary interval in a collapsing slope setting: A case from the Rio Fardes section, southern Spain , 2020 .

[4]  A. Marok,et al.  Similarity analysis of Ostracoda faunas in the Western Tethys during the Late Pliensbachian-Early Toarcian (Early Jurassic) , 2020, Arabian Journal of Geosciences.

[5]  R. Twitchett,et al.  Substantial vegetation response to Early Jurassic global warming with impacts on oceanic anoxia , 2019, Nature Geoscience.

[6]  M. Reolid,et al.  Changes in foraminiferal assemblages and environmental conditions during the T-OAE (Early Jurassic) in the northern Lusitanian Basin, Portugal , 2019, Palaeogeography, Palaeoclimatology, Palaeoecology.

[7]  J. Dorador,et al.  Opportunistic behaviour after the Toarcian Oceanic Anoxic Event: The trace fossil Halimedides , 2019, Palaeogeography, Palaeoclimatology, Palaeoecology.

[8]  F. Rodríguez-Tovar,et al.  Ichnological analysis at the Fonte Coberta section (Lusitanian Basin, Portugal): Approaching depositional environment during the Toarcian oceanic anoxic event (T-OAE) , 2018, Spanish Journal of Palaeontology.

[9]  F. Rodríguez-Tovar,et al.  Toarcian Oceanic Anoxic Event induced unusual behaviour and palaeobiological changes in Thalassinoides tracemakers , 2017 .

[10]  F. Rodríguez-Tovar,et al.  The Faraoni event (latest Hauterivian) in ichnological record: The Río Argos section of southern Spain , 2017 .

[11]  F. Rodríguez-Tovar,et al.  The Toarcian Oceanic Anoxic Event in the South Iberian Palaeomargin , 2017 .

[12]  F. Rodríguez-Tovar,et al.  Selective incidence of the toarcian oceanic anoxic event on macroinvertebrate marine communities: a case from the Lusitanian basin, Portugal , 2017 .

[13]  J. J. Gómez,et al.  The hydrocarbon source rocks of the Pliensbachian (Early Jurassic) in the Asturian Basin (Northern Spain): Their relationship with the palaeoclimatic oscillations and gamma-ray response. , 2016 .

[14]  M. Reolid,et al.  Benthic foraminiferal assemblages record major environmental perturbations during the Late Pliensbachian–Early Toarcian interval in the Peniche GSSP, Portugal , 2016 .

[15]  F. Rodríguez-Tovar,et al.  Environmental fluctuations during the latest Cenomanian (Bonarelli Level) in the Gubbio area (central Italy) based on an ichnofabric approach , 2016 .

[16]  T. Adatte,et al.  Calibrating the magnitude of the Toarcian carbon cycle perturbation , 2015 .

[17]  F. Rodríguez-Tovar,et al.  The Early Toarcian Oceanic Anoxic Event in the External Subbetic (Southiberian Palaeomargin, Westernmost Tethys): Geochemistry, nannofossils and ichnology , 2014 .

[18]  F. Rodríguez-Tovar,et al.  Exceptionally favourable life conditions for macrobenthos during the Late Cenomanian OAE-2 event: Ichnological record from the Bonarelli Level in the Grajcarek Unit, Polish Carpathians , 2013 .

[19]  F. Rodríguez-Tovar,et al.  Environmental conditions during the Toarcian Oceanic Anoxic Event (T-OAE) in the westernmost Tethys: influence of the regional context on a global phenomenon , 2013 .

[20]  F. Rodríguez-Tovar,et al.  Ichnological characteristics of Late Cretaceous hemipelagic and pelagic sediments in a submarine high around the OAE-2 event: A case from the Rybie section, Polish Carpathians , 2013 .

[21]  A. Uchman,et al.  The late Barremian Halimedides horizon of the Dolomites (Southern Alps, Italy) , 2012, Cretaceous research.

[22]  Laura Piñuela,et al.  High-resolution chemostratigraphic records from Lower Pliensbachian belemnites: Palaeoclimatic perturbations, organic facies and water mass exchange (Asturian basin, northern Spain) , 2012 .

[23]  A. Uchman,et al.  Integrated ichnology and ichthyology of the Oligocene Menilite Formation, Skole and Subsilesian nappes, Polish Carpathians: A proxy to oxygenation history , 2012 .

[24]  M. Kennard,et al.  Integrating multidirectional connectivity requirements in systematic conservation planning for freshwater systems , 2012 .

[25]  Mark A. Wilson,et al.  Ichnology: Organism-Substrate Interactions in Space and Time , 2011 .

[26]  J. J. Gómez,et al.  Warming-driven mass extinction in the Early Toarcian (Early Jurassic) of northern and central Spain. Correlation with other time-equivalent European sections , 2011 .

[27]  F. Rodríguez-Tovar,et al.  Ichnological data as a useful tool for deep-sea environmental characterization: a brief overview and an application to recognition of small-scale oxygenation changes during the Cenomanian–Turonian anoxic event , 2011 .

[28]  J. J. Gómez,et al.  Mass extinction and recovery of the Early Toarcian (Early Jurassic) brachiopods linked to climate change in Northern and Central Spain , 2011 .

[29]  A. Uchman,et al.  ICHNOFABRIC EVIDENCE FOR THE LACK OF BOTTOM ANOXIA DURING THE LOWER TOARCIAN OCEANIC ANOXIC EVENT IN THE FUENTE DE LA VIDRIERA SECTION, BETIC CORDILLERA, SPAIN , 2010 .

[30]  H. Jenkyns.  Geochemistry of oceanic anoxic events , 2010 .

[31]  P. Neige,et al.  High-resolution dynamics of Early Jurassic marine extinctions: the case of Pliensbachian–Toarcian ammonites (Cephalopoda) , 2010, Journal of the Geological Society.

[32]  A. Uchman,et al.  Oceanic Anoxic Event at the Cenomanian-Turonian boundary interval (OAE-2): ichnological approach from the Betic Cordillera, southern Spain , 2009 .

[33]  F. G. Joral,et al.  Toarcian (Lower Jurassic) brachiopods in Asturias (Northern Spain): Stratigraphic distribution, critical events and palaeobiogeography☆ , 2009 .

[34]  D. Olivero,et al.  The ichnofossil Halimedides in Cretaceous pelagic deposits from the Alps: Environmental and ethological significance , 2009 .

[35]  F. Rodríguez-Tovar,et al.  Nutrient spatial variation during intrabasinal upwelling at the Cenomanian-Turonian oceanic anoxic event in the westernmost Tethys: An ichnological and facies approach , 2009 .

[36]  F. Rodríguez-Tovar,et al.  Ichnological record of deep-sea palaeoenvironmental changes around the Oceanic Anoxic Event 2 (Cenomanian–Turonian boundary): An example from the Barnasiówka section, Polish Outer Carpathians , 2008 .

[37]  E. Mattioli,et al.  Duration of the Early Toarcian carbon isotope excursion deduced from spectral analysis: Consequence for its possible causes , 2008 .

[38]  J. J. Gómez,et al.  Seawater temperature and carbon isotope variations in belemnites linked to mass extinction during the Toarcian (Early Jurassic) in Central and Northern Spain. Comparison with other European sections , 2008 .

[39]  H. Jenkyns,et al.  Carbon-isotope record of the Early Jurassic (Toarcian) Oceanic Anoxic Event from fossil wood and marine carbonate (Lusitanian Basin, Portugal) , 2007 .

[40]  J. García-Ramos,et al.  Transgressive–regressive cycles and Jurassic palaeogeography of northeast Iberia , 2003 .

[41]  R. Pickerill,et al.  Fustiglyphus annulatus from the Ordovician of Ontario, Canada, with a systematic review of the ichnogenera Fustiglyphus Vialov 1971 and Rhabdoglyphus Vassoievich 1951 , 1993 .

[42]  J. García-Ramos,et al.  The Jurassic sedimentation in Asturias (N Spain) , 1986 .

[43]  J. Lehmann,et al.  Morphological variability in response to palaeoenvironmental change – a case study on Cretaceous ammonites , 2016 .

[44]  Laura Piñuela,et al.  Origen de los Black shales del Pliensbachiense inferior de la cuenca asturiana (España) , 2013 .

[45]  A. Uchman,et al.  ICHNOLOGICAL ANALYSIS OF LATERAL ENVIRONMENTAL HETEROGENEITY WITHIN THE BONARELLI LEVEL (UPPERMOST CENOMANIAN) IN THE CLASSICAL LOCALITIES NEAR GUBBIO, CENTRAL APENNINES, ITALY , 2012 .

[46]  R. Bromley,et al.  Trace fossils as indicators of sedimentary environments , 2012 .

[47]  D. McIlroy.  The application of ichnology to palaeoenvironmental and stratigraphic analysis: introduction , 2004, Geological Society, London, Special Publications.

[48]  J. Ramos,et al.  La sedimentación en una rampa carbonatada dominada por tempestades, ensayos de correlación de ciclos y eventos de la ritmita margo-calcárea del Jurásico de Asturias , 1989 .

[49]  Lorenz Ritter V Josef Roman Liburnau.  Ergänzung zur Beschreibung der fossilen Halimeda Fuggeri , 1902 .