Report on the 5th International Meeting of the IUGS Lower Cretaceous Ammonite Working Group, the Kilian Group (Ankara, Turkey, 31st August 2013)

Reboulet, Stéphane; Szives, Ottilia; Aguirre–Urreta, Beatriz; Barragán, Ricardo; Company, Miguel; Idakieva, Vyara; Ivanov, Marin; Kakabadze, Mikheil V.; Moreno‐Bedmar, Josep Anton; Sandoval, José; Baraboshkin, E. Yu.; Çağlar, Meral K.; Főzy, István; González-Arreola, Celestina; Kenjo, Samer; Lukeneder, Alexander; Raisossadat, Seyed Naser; Rawson, Peter F.; Tavera, José María

doi:10.1016/j.cretres.2014.04.001

Cited by 135 publications

(75 citation statements)

References 30 publications

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“…In terms of biostratigraphy, this work confirms the occurrence of the index-species A. puzosianum at the base of the "Heteroceras horizon", as originally reported by Masse (1976 (Reboulet et al 2014) (see ). Following Masse and Fenerci-Masse (2011), we agree that the deepening event is coeval with the "Heteroceras marls" episode sensu Paquier (1900), recorded in the nearby Vocontian Basin, and dated to the boundary between the G. sartousiana Zone and the I. giraudi Zone (Bert et al 2008).…”

Section: Geological Settingsupporting

confidence: 73%

“…However, this heteroceratid assemblage is only known from a very limited number of specimens, together with ancyloceratids of the genus Pseudocrioceras Spath, 1924 which also dominate this interval. It should be noted that the validity of the P. waagenoides Subzone has been much debated because this genus is considered to be spatially restricted to the proximal margins of Tethyan basins (Bert et al 2008;Reboulet et al 2006Reboulet et al , 2011Reboulet et al , 2014. Our investigation of a laterally equivalent upper Barremian section in the vicinity of Marseille (Bouchesdu-Rhône, France) has revealed new heteroceratids-rich assemblages in the deepening succession.…”

Section: Introductionmentioning

confidence: 99%

“…Ropolo and Gonnet (1998) and Ropolo et al (1998aRopolo et al ( , 1999 were the first to illustrate typical late Barremian ammonites from Cassis and La Bédoule. These authors reported an heteroceratid assemblage at the base of the Pseudocrioceras waagenoides Subzone that typifies the upper part of the Martelites sarasini Zone of the uppermost Barremian (in the Mediterranean standard zonation; see Reboulet et al 2014). However, this heteroceratid assemblage is only known from a very limited number of specimens, together with ancyloceratids of the genus Pseudocrioceras Spath, 1924 which also dominate this interval.…”

Section: Introductionmentioning

confidence: 99%

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New Heteroceratidae (Ammonoidea) from the late Barremian deepening succession of Marseille (Bouches-du-Rhône, France)

Frau¹,

Delanoy²,

Massé³

et al. 2016

Acta Geologica Polonica

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Investigation of the late Barremian deepening succession of the Provence platform, cropping out south of Marseille (Bouches-du-Rhône, France), has yielded a new ammonite fauna belonging to the Martelites sarasini Subzone (Martelites sarasini Zone). The fauna is dominated by representatives of the Heteroceratidae Spath, characterized by different patterns of coiling, high intraspecific variabilities and dwarfism. These heteroceratids are distinctive and utterly different from all previously known taxa, and this justifies the introduction of the new taxa Heteroceras denizoti sp. nov., Heteroceras veratiae sp. nov., Calanquites gen. nov., based on Imerites katsharavai Rouchadzé; Giovaraites gen. nov., based on Giovaraites massiliae gen. et sp. nov., Barguesiella gen. nov., based on Barguesiella goudesense gen. et sp. nov. and the closely allied Barguesiella mantei gen. et sp. nov. The occurrence of the latter species at the top of the Maiolica Formation in Italy questions its early Aptian age assumed in the literature. The newly described fauna could be considered as the first case of micromorphy in the Heteroceratidae. Its biostratigraphy, palaeoenvironmental and palaeobiogeographical significance are discussed.

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Section: Geological Settingsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New Heteroceratidae (Ammonoidea) from the late Barremian deepening succession of Marseille (Bouches-du-Rhône, France)

Frau¹,

Delanoy²,

Massé³

et al. 2016

Acta Geologica Polonica

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“…With ref er ence to the pub lished data re gard ing Late Hauterivian ammonite biostratigraphy (e.g., Vermeulen et al, 2002;Com pany et al, 2003Com pany et al, , 2005Vermeulen, 2004;Reboulet et al, 2014) and biostratigraphy and se quence stra tig ra phy (Hoedemaeker, 2002(Hoedemaeker, , 2003(Hoedemaeker, , 2013 with re spect to the de tailed stra tig ra phy of the sec tions stud ied, we have in clined to the adop tion of the rel a tively sim ple ammonite zonation as proposed by Hoedemaeker (2013) for the Up per Hauterivian in the sec tions at Río Argos. This shows the fol low ing ammonite zones in se quence: Ligatus, Balearis, Ohmi and Catulloi.…”

Section: Stratigraphymentioning

confidence: 99%

“…In the Lower Cre ta ceous of the Med i ter ra nean area, the pseudothurmanniid ammonites are sig nif i cant within the Up per Hauterivian, ammonite zones and subzones based on their occur rence (e.g., Com pany et al, 2003;Vermeulen, 2004;Hoedemaeker, 2013;Reboulet et al, 2014). These ammonites were as so ci ated with a pe lagic ma rine en vi ron ment, and can be found mainly in the deep-wa ter de pos its of the con ti nen tal slope.…”

Section: Introductionmentioning

confidence: 99%

Pseudothurmanniid ammonites from quarries near Lietavská Lúčka and their stratigraphical significance (Late Hauterivian, Central Western Carpathians, Slovakia)

Vašíček

Malek

2017

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Turbidite‐induced re‐oxygenation episodes of the sediment‐water interface in a diverticulum of the Tethys Ocean during the Oceanic Anoxic Event 1a: The French Vocontian Basin

Caillaud

Quijada

Huet

et al. 2020

The Depositional Record

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Widespread anoxic events affected the Tethys Ocean during the Mesozoic. The Ocean Anoxic Event 1a (Early Aptian), expressed as the Selli Level or Goguel Level (GL) in European basins. The GL was deposited in the French Vocontian Basin, a semi-enclosed basin connected to the Tethys Ocean. This study presents an integrated approach (Rock Eval, clay minerals, grain-size, inorganic geochemistry and molecular biomarkers), applied to four sections in the basin distributed along a proximal-distal transect. This study shows that the GL was perturbed by turbidites.In particular, the results demonstrate: (a) a homogeneous redox status of the basin that experienced oxic to suboxic conditions, according to trace element distributions and (b) low organic matter contents (total organic carbon ca 1 wt%) in the three sections where turbiditic deposits are observed. The distal, condensed section exhibits the highest organic matter contents (total organic carbon >3 wt%). In addition, the presence of gammacerane and isorenieratene derivatives in the distal sections suggests that the water-column was intermittently stratified, with hypoxia developing in the photic zone. This stratification did not result from strong surface productivity but more likely from: (a) limited renewal of deep water in the basin; (b) reputedly high surface-water palaeotemperatures during the Early Aptian; and (c) the influx of waters, possibly depleted in free oxygen and in some dissolved trace elements, into the basin. The turbiditic inputs, in addition to organic matter dilution in the sediments and a brief rupture of the water-column stratification in the proximal areas of the basin, ventilated the sea floor and more specifically re-oxidized the sedimentwater interface as well as underlying sediments. Such episodes of benthic re-oxygenation could have altered the long-term palaeoredox record, even in the distal sections where reducing conditions prevailed during deposition. In the area deprived of turbiditic input, sedimentary condensation, coupled with low oxygen conditions, furthered organic matter preservation and concentration.

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Report on the 5th International Meeting of the IUGS Lower Cretaceous Ammonite Working Group, the Kilian Group (Ankara, Turkey, 31st August 2013)

Cited by 135 publications

References 30 publications

New Heteroceratidae (Ammonoidea) from the late Barremian deepening succession of Marseille (Bouches-du-Rhône, France)

New Heteroceratidae (Ammonoidea) from the late Barremian deepening succession of Marseille (Bouches-du-Rhône, France)

Pseudothurmanniid ammonites from quarries near Lietavská Lúčka and their stratigraphical significance (Late Hauterivian, Central Western Carpathians, Slovakia)

Turbidite‐induced re‐oxygenation episodes of the sediment‐water interface in a diverticulum of the Tethys Ocean during the Oceanic Anoxic Event 1a: The French Vocontian Basin

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