Brachiopod faunal exchange through an epioceanic-epicontinental transitional area from the Early Jurassic South Iberian platform system

Baeza-Carratalá, José Francisco; Joral, Fernando García; Tent-Manclús, José Enrique

doi:10.1016/j.geobios.2016.05.005

Cited by 6 publications

(15 citation statements)

References 24 publications

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“…In this area, yellowish marls and interspersed marly limestone beds (Fig. 2), comparable to the Subbetic area, characterize the lowermost Toarcian deposits as well (Baeza-Carratalá et al, 2016b).…”

Section: Betic Rangementioning

confidence: 61%

“…The most conspicuous populations of this bioprovince are reported in Madagascar (Thévenin, 1908), South-Western Somalia (Chiocchini et al, 2002), Arabia (Alméras, 1987;Cooper, 1989;Alméras et al, 2010;El-Sorogy et al, 2017) and Syria (Alméras and Mouty, 2001). On the other hand, the well-established Euro-Boreal and Mediterranean brachiopod bioprovinces (Vörös, 2016), become less obvious in the early Toarcian due to the concurrence of diverse factors (Baeza-Carratalá, 2013), enabling the influence of this Arab-Madagascan fauna in the Western Tethys, whose presence has been documented in the Betic Range (Baeza-Carratalá, 2013;Baeza-Carratalá et al, 2016b), the Iberian Range (Rousselle, 1977;Comas-Rengifo et al, 2006;García Joral et al, 2011;Baeza-Carratalá et al, 2016a), the North-Eastern Iberian paleomargin (Delance, 1969;Calzada, 1981) and the Lusitanian Basin (Comas-Rengifo et al, 2013) (Fig. 4).…”

Section: Distribution and Depositional Environments Of The Calyptoriamentioning

confidence: 99%

“…(b) Sea-level fluctuations definitely affected the provinciality in the Western Tethys and the wellestablished Euro-Boreal and Mediterranean bioprovinces become lesser evident probably due to the major Early Toarcian marine transgression (Hallam, 2001;Rulleau et al, 2003;García Joral et al, 2011, Dera et al, 2011Andrade et al, 2016), enabling unification of faunas and disruption of biochoremas not only for brachiopod fauna (cf. García Joral and Goy, 2000;Baeza-Carratalá et al, 2016b), but also other marine biota (cf. Rulleau et al, 2003;Macchioni and Cecca, 2002;Damborenea, 2002;Dera et al, 2011), evidencing the Arab-Madagascan occurrences in the Western Tethys (Fig.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…1, 10). These Subbetic epioceanic platforms and transitional ramps did not constitute filter-barriers but rather facilitated brachiopod dispersal enabling faunal mixing and exchange between epicontinental/epioceanic environments (Baeza-Carratalá et al, 2016b).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

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Arab-Madagascan brachiopod dispersal along the North-Gondwana paleomargin towards the Western Tethys Ocean during the Early Toarcian (Jurassic)

Baeza-Carratalá

Joral

Goy

et al. 2018

Palaeogeography, Palaeoclimatology, Palaeoecology

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Multiple approaches, mainly focused on assessing the depositional environments, paleotemperature, chronostratigraphical and paleobiogeographical data, morphometrical analyses and the study of the internal structure of spiriferinide brachiopods assigned to the genus Calyptoria, have revealed that this brachiopod fauna migrated from their Arab-Madagascan homeland along the North-Gondwana paleomargin into the peri-Iberian epicontinental platform system, in the same well-known spreading episode suffered by the Arab-Madagascan Bouleiceras ammonite fauna over the worldwide-distributed early Toarcian platforms. This brachiopod fauna has been so far overlooked as potential Arab-Madagascan immigrant fauna, as it was integrated together with diverse assemblages well-established in the peri-Iberian basins. Dispersal of Calyptoria stock was conditioned by the interplay of several factors, such as the tectonic framework, the development of epicontinental seas on both Tethyan margins, the early Toarcian transgression, the prevailing ocean current pattern, and their limited ability for dispersal. The revised chronostratigraphical framework of this dispersal episode reveals the coincidence with the thermal maximum recorded prior to the Early Toarcian Mass Extinction Event (ETMEE) in the westernmost Tethys Ocean. The concurrence of these factors played a significant role in the Calyptoria spreading, showing an inter-tropical distribution between 0º and 30º in both hemispheres. The taxonomical updating performed in the light of the current systematic trends support

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Section: Betic Rangementioning

confidence: 61%

Section: Distribution and Depositional Environments Of The Calyptoriamentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

See 2 more Smart Citations

Arab-Madagascan brachiopod dispersal along the North-Gondwana paleomargin towards the Western Tethys Ocean during the Early Toarcian (Jurassic)

Baeza-Carratalá

Joral

Goy

et al. 2018

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…undulata sensu lato, including Spiriferina madagascariensis (Thevenin, 1908) and probably several species grouped into the genus Calyptoria by Cooper (1989) and Alméras et al (2010) are typical and abundant representatives of the assemblages from the Madagascariense Zone of the North-East African and the Middle-East platforms (Thevenin, 1908;Alméras, 1987;Cooper, 1989;Alméras and Mouty, 2001;Chiocchini et al, 2002), reaching in its dispersion North-East Sicily (Seguenza, 1885), and the periIberian platform system in Portugal (Comas-Rengifo et al, 2013), Betic Range (Baeza-Carratalá, 2013Baeza-Carratalá et al, 2016), Catalonia (Delance, 1969;Calzada, 1979) and the Iberian Range (Rousselle, 1977;Comas-Rengifo et al, 2006;García Joral et al, 2011). In the I-LS of the Iberian Range, this taxon shows the greatest profusion and intraspecific variability among all the peri-Iberian platforms (Fig.…”

Section: Event Of Proliferation Of Liospiriferina? Undulatamentioning

confidence: 99%

Lower Jurassic brachiopods from the Ibero-Levantine Sector (Iberian Range): Faunal turnovers and critical bioevents

Baeza-Carratalá

Joral

Tent-Manclús

2016

Journal of Iberian Geology

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Brachiopod fauna from the peri-Iberian platform system is well-known in the Late Pliensbachian-Toarcian interval. However, the diversity dynamics and the stratigraphical distribution of this group in the Ibero-Levantine Sector of the Iberian Range require more accurate analysis due to the patchy distribution of the outcrops. The abovementioned timespan involved a period of changes in long-term environmental conditions which led to a severe extinction and critical turnovers on the brachiopod fauna (ETMEE). The Ibero-Levantine sector has notable palaeobiogeographical significance as it represents the south-easternmost outcrops of the Iberian Range connecting with the Betic Domain positioned in the South-Iberian Palaeomargin. In this region, the brachiopod fauna has been arranged into six assemblages, showing a discontinuous stratigraphic distribution since its diversity dynamics is markedly conditioned by the extinction phases linked to the ETMEE: Ass. 1, recorded in the Spinatum-lower Tenuicostatum chronozones; Ass. 2, mainly recorded in the Tenuicostatum chronozone; Ass. 3, typifying the lower Serpentinum chronozone; Ass. 4, documented in the Serpentinum-lowermost Bifrons chronozones; Ass. 5, recorded in the Bifrons-Variabilis chronozones, and Ass. 6, distinctive of the Pseudoradiosa-Aalensis chronozones.The faunal succession shows strong affinities with the Euro-Boreal province, what rules out the transitional or even Mediterranean palaeogeographical affinity previously attributed to the southernmost part of this area. Amidst the main brachiopod-based bioevents must be considered the predominance of the genus Lobothyris in the pre-ETMEE assemblages, the conspicuous record of Liospiriferina? undulata, distinctive taxon of the north-African margin and, especially, the first record in the Iberian Peninsula of thecideid marker beds prior to the ETMEE. After the opportunistic strategy conducted by Soaresirhynchia bouchardi the distribution of the post-ETMEE brachiopod assemblages is markedly influenced by the depositional sequences, entailing premature turnovers and involving the earlier record of homeomorphic morphotypes of younger terebratulides and rhynchonellides.Keywords: Brachiopods, Western Tethys, Early Jurassic, palaeobiogeography, mass extinction, faunal turnovers Resumen Las sucesiones de braquiópodos en el Pliensbachiense superior-Toarciense, ampliamente reconocidas en las plataformas marginales de Iberia, carece de un registro preciso en el sector Ibero-Levantino de la Cordillera Ibérica. Este intervalo engloba un periodo de cambios ambientales significativos, incluyendo un severo evento de extinción y reemplazamiento que condiciona notablemente la distribución de los braquiópodos (ETMEE). El sector Ibero-Levantino posee un especial interés paleobiogeográfico, representando el extremo sudoriental de la Cordillera Ibérica, en contacto con los afloramientos de directriz Bética del paleomargen sud-Ibérico. En esta región, se han definido seis asociaciones que muestran gran similitud con las del res...

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Pliensbachian succession and brachiopod fauna from the Central Unit of the South Riffian Ridges (northwestern Morocco)

Benzaggagh

2023

Annales de Paléontologie

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Brachiopod faunal exchange through an epioceanic-epicontinental transitional area from the Early Jurassic South Iberian platform system

Cited by 6 publications

References 24 publications

Arab-Madagascan brachiopod dispersal along the North-Gondwana paleomargin towards the Western Tethys Ocean during the Early Toarcian (Jurassic)

Arab-Madagascan brachiopod dispersal along the North-Gondwana paleomargin towards the Western Tethys Ocean during the Early Toarcian (Jurassic)

Lower Jurassic brachiopods from the Ibero-Levantine Sector (Iberian Range): Faunal turnovers and critical bioevents

Pliensbachian succession and brachiopod fauna from the Central Unit of the South Riffian Ridges (northwestern Morocco)

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