Stratigraphic evidence for an Early Aptian sea-level fluctuation: the Graua Limestone of south-eastern Ethiopia

Bosellini, Alfonso; Russo, Antonio; Schroeder, Rolf

doi:10.1006/cres.1999.0183

Cited by 36 publications

(24 citation statements)

References 18 publications

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“…Therefore, it can be assumed that the accommodation space for platform growth was created from a combination of sea-level change, local block movements, and regional subsidence from crustal thinning and sediment loading. remarkably, it has been also reported from cratonic areas, such as the East African craton, which are considered as geologically more stable (Bosellini et al, 1999). Because this transgression correlates well with similar events around the world and within different tectonostratigraphic settings (Somalia, Arabian Peninsula, Ethiopia, southern Italy, France, Spain, Portugal, north-eastern Mexico, Pacific realm, etc.)…”

Section: Qimate (Global) Versus Tectonic (Local) Controls On the Platsupporting

confidence: 52%

“…During this time, widespread drowning of shallow water carbonate platforms appears to have been synchronous at a global scale, defining a correlation between the OAE la and these drowning incidents (e.g. Arnaud-Vanneau and Arnaud, 1990;Hunt and Tucker, 1993;jansa, 1993;Masse, 1993;Scott, 1993;F6llmi et al, 1994;Lehmann et al, 1998;Ruiz-Ortiz and Castra, 1998;Weissert et al, 1998;Bosellini et al, 1999;Wissler et al, 2003 ). One indicator of the influence upon the platform carbonates of environmental change associated to this event is the occurrence of significant variations in styles of carbonate production and dia genesis.…”

Section: Introductionmentioning

confidence: 99%

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Major palaeoenvironmental perturbation in an Early Aptian carbonate platform: Prelude of the Oceanic Anoxic Event 1a?

Najarro

Rosales

Martı́n-Chivelet

2011

Sedimentary Geology

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Section: Qimate (Global) Versus Tectonic (Local) Controls On the Platsupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Major palaeoenvironmental perturbation in an Early Aptian carbonate platform: Prelude of the Oceanic Anoxic Event 1a?

Najarro

Rosales

Martı́n-Chivelet

2011

Sedimentary Geology

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“…-O gênero Cerithium apesar de não ser característico da fauna Tetiana tem sua ocorrência bem diversificada no Aptiano-Albiano, estando presentes nas associações de Tylostoma e cassiopídeos, sendo registrados na Etiópia, França, Madagascar, México, República Dominicana, Espanha, Suíça, Egito e Brasil (Douvillé, 1916;Maury, 1936;Allison, 1955;Alloiteau, 1958, Mennessier, 1984Bosellini et al, 1999;Ayoub-Hannaa, 2011;Pereira et al, 2015. Este gênero sofreu uma grande diversificação a partir do Cretáceo Superior, sendo registrados na Antártica, Argentina, Alemanha, México, Polônia, EUA, Venezuela e Brasil.…”

Section: Paleoecologia E Paleogeografia Dos Moluscos E Equinoides Da unclassified

Paleoecology and Paleogeography of Mollusks and Echinoids from Romualdo Formation, Aptian-Albian of the Araripe Basin, Brazil

2017

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ResumoA influência marinha no Aptiano-Albiano da bacia sedimentar do Araripe, sempre foi sugerida a partir de fósseis de vários grupos taxonômicos como os equinoides e diversos moluscos gastrópodos e biválvios. Apesar da Formação Romualdo apresentar assembleias com fósseis desses invertebrados, relevantes para a indicação dessa influência marinha durante o Aptiano-Albiano, passaram muitos anos sem receber estudos apropriados. Somente após os recentes trabalhos feitos tanto com os equinoides como os moluscos ali representados possibilitou a análise paleoecológica dessas assembleias. Esses estudos possibilitarão configurar uma possível rota dessa incursão marinha ocorrida no início da formação do Oceano Atlântico. Nesse trabalho foram analisados fósseis de invertebrados de vinte sítios da Formação Romualdo, distribuídos ao longo da bacia do Araripe em Pernambuco, Ceará e no Piauí. A partir deste estudo foram feitas inferências paleoecológicas, bem como a distribuição paleogeográfica da fauna mostrando prováveis ambientes de sedimentação marinho, lagunar e estuarino, mostrando as possíveis entradas do mar na bacia. Foram constatadas espécies em comum com o Albiano da bacia de Sergipe e com a Formação Codó, no Maranhão. Essa associação de invertebrados marinhos é composta predominantemente pelos equinodermos: Pygurus (Echinopygus) tinocoi e Bothryopneustes araripensis, pelos gastrópodos: Tylostoma ranchariensis, Cerithium sergipensis, Paraglauconia (Diglauconia) araripensis e pelos biválvios: Aguileria dissita e Brachidontes araripensis. Já na associação lagunar predominam gastrópodos Paraglauconia (Diglauconia) araripensis, Gymnentome (Gymnentome) romualdoi, Gymnentome (Craginia) beurleni, "Pseudomesalia" ("Pseudomesalia") santanensis, "Pseudomesalia" ("Pseudomesalia") "mennessieri", Cerithium sergipensis e Tylostoma ranchariensis e ausência de equinoides. Na estuarina predominam os biválvios Brachidontes araripensis e Corbula sp. Palavras-chave: Aptiano-Albiano, bacia do Araripe, Formação Romualdo, gastrópodos, biválvios, equinoides, associações faunísticas marinha, lagunar e estuarina. AbstractThe marine influence in the Aptian-Albian of the Araripe Sedimentary Basin, has always been suggested from fossils of several different taxonomic groups. Although the Romualdo Formation presented fossil assemblages of these invertebrates, relevant for the indication of this marine influence during the Aptian-Albian, they spent many years without receiving appropriate studies. Only after the recent work done with both the equinoids and the molluscs represented there allowed the paleoecological analysis of these assemblies. These studies will make it possible to configure a possible route of this marine incursion that occurred at the beginning of the formation of the Atlantic Ocean. From this study were made paleoecological inferences, as well as the paleogeographic distribution of the fauna showing probable environments of marine, lagoon and estuarine sedimentation, showing the possible entrances of the sea in the basin. Com...

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“…AMNH 25455 depicted by SCOTT (1943) comes from the Harrar region (Ethiopia). The local geology was studied by BOSELLINI et al (1999), who show that in this region there is only a very short Aptian marine incursion, with sandy fluvial deposition before and after; the presence of Palorbitolina lenticularis (BLUMENBACH, 1805) and Praeorbitolina cormyi SCHROEDER, 1964, allows us to determine a middle Early Aptian age for this formation (SCHROEDER et al, 2010). Heminautilus lallierianus (ORBIGNY, 1841) is thus present in Europe in the Deshayesites forbesi Zone, Roloboceras hambrovi Subzone, in particular at the top of the subzone.…”

Section: Heminautilus Lallierianus (Orbigny 1841)mentioning

confidence: 99%

“…XII, fig. 1 (BOSELLINI et al, 1999), very certainly representing a marine deposit under a very shallow water depth.…”

Section: Stratigraphical and Paleogeographical Distributionmentioning

confidence: 99%

Revision of the Early Cretaceous genera Heminautilus Spath, 1927, and Josanautilus Martínez & Grauges, 2006 (Nautilida, Cenoceratidae)

Baudouin¹,

Delanoy²,

Moreno‐Bedmar³

et al. 2016

Carnets Geol.

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Abstract:In spite of recent interest, the various species belonging to the genera Heminautilus SPATH, 1927, and Josanautilus MARTÍNEZ &GRAUGES, 2006, have never been the object of a general revision. More than 160 specimens belonging to various species of these two genera were studied, with the aim of identifying the specific characteristics and the stratigraphical and paleogeographical distribution of the various species which compose them, as well as to propose a phylogeny for the group. This study confirms the non-synonymy of H. saxbii (MORRIS, 1848) and H. lallierianus (ORBIGNY, 1841), establishes that H. tejeriensis MARTÍNEZ &GRAUGES, 2006, and H. verneuilli (VILANOVA, 1870) represent junior synonyms of H. saxbii (MORRIS) and suggests the creation of the species H. ? japonicus sp. nov. The origin of the genus Heminautilus SPATH from Pseudocenoceras SPATH, 1927, proposed by TINTANT and the origin of Josanautilus MARTÍNEZ & GRAUGES from Heminautilus SPATH are both confirmed.Key Words: Nautiloidea; Cenoceratidae; Heminautilus; Josanautilus; Early Cretaceous; Barremian; Aptian.Citation: BAUDOUIN C., DELANOY G., MORENO-BEDMAR J.A., PICTET A., VERMEULEN J., CONTE G., GONNET R., BOSELLI P. & BOSELLI M. (2016).-Revision of the Early Cretaceous genera Heminautilus SPATH, 1927, and Josanautilus MARTÍNEZ & GRAUGES, 2006 (Nautilida, Cenoceratidae). Madrid, vol. 16, no. 5, Résumé : Révision des genres Heminautilus SPATH, 1927, et Josanautilus MARTÍNEZ & GRAU-GES, 2006 (Nautilida, Cenoceratidae), du Crétacé inférieur.-Malgré des travaux récents, les diffé-rentes espèces appartenant aux genres Heminautilus SPATH, 1927, et Josanautilus MARTÍNEZ & GRAUGES, 2006, n'ont jamais fait l'objet d'une révision d'ensemble. Plus de 160 spécimens appartenant à diffé-rentes espèces de ces deux genres ont été étudiés dans le but de cerner les caractères spécifiques et la répartition stratigraphique et paléogéographique des différentes espèces qui les composent, ainsi que de proposer un schéma phylogénétique de ce groupe. Cette étude a permis en particulier de confirmer la (1980, 1985, 1989, 2007, 2010), MARTÍNEZ & GRAUGES (2006) and DELANOY et al. (2012) The classification of SPATH SPATH (1927) is the first author to propose a classification of Nautiloidea, based purely on morphological criteria. Thus he classifies the genus Heminautilus SPATH, 1927, in the Family Paracenoceratidae SPATH, 1927, which gathers all the forms with a differentiated ventral region and a suture line containing a well developed ventral lobe. However, SPATH (1927, p. 25) himself recognizes the polyphyletic character of this family. The works of TINTANT (TINTANT & KABAM- BA, 1983;TINTANT, 1993) will later show that this classification does not actually take into account phyletic data and that numerous identical morphological characteristics appear in an iterative way in various lineages. The classification of SPATH was used, however, by DZIK (1984, p. 181) who presented a phylogenetic outline of the Family Paracenoceratidae SPATH. The classification of KU...

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Stratigraphic evidence for an Early Aptian sea-level fluctuation: the Graua Limestone of south-eastern Ethiopia

Cited by 36 publications

References 18 publications

Major palaeoenvironmental perturbation in an Early Aptian carbonate platform: Prelude of the Oceanic Anoxic Event 1a?

Major palaeoenvironmental perturbation in an Early Aptian carbonate platform: Prelude of the Oceanic Anoxic Event 1a?

Paleoecology and Paleogeography of Mollusks and Echinoids from Romualdo Formation, Aptian-Albian of the Araripe Basin, Brazil

Revision of the Early Cretaceous genera Heminautilus Spath, 1927, and Josanautilus Martínez & Grauges, 2006 (Nautilida, Cenoceratidae)

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