Ostracods as proxies for marginal marine to non-marine intervals in the mid-Cretaceous carbonate platform of the Central Tunisian Atlas (North Africa): Response to major short-term sea-level falls

Trabelsi, Khaled; Sames, Benjamin; Nasri, Ahmed; Piovesan, Enelise Katia; Elferhi, Faycel; Skanji, Ahmed; Houla, Yassine; Soussi, Mohamed; Wagreich, Michael

doi:10.1016/j.cretres.2020.104581

Cited by 16 publications

(11 citation statements)

References 62 publications

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“…The facies and thickness variations described in the stratigraphic sections of the Albian successions in the ElKef-Tajerouine area indicate relative lateral changes in accommodation due to passive-diapirism of structures into the Triassic salt bodies in this area. The main results of this study can be summarized as follows: Mrabet 1984, Marie et al 1984, Mass et al, 1984Bouhlel 1993;Saadi and Duée 1991;Ben Youssef 1999;Zghal 1994 ;Ben Chaabane et al 2019, Trabelsi et al 2020. B, Paleogeography of Tunisia during the early Albian (from Marie et al 1984) *This phenomenon occurred during the Early to Late Albian, especially before and during the T. breggiensis zone of early-late Albian age.…”

Section: Discussionmentioning

confidence: 73%

“…The Aptian-Albian transition in Tunisia The latest Aptian -Albian unconformity is described in numerous areas of the northern-central part of Tunisia (Bismuth 1973;Bismuth et al 1981;Mrabet 1984;Ben Youssef 1999). This stage is now debated (Hichi et al 2020) and rejuvenated to the middle Albian (Latil 2011;Chihaoui et al 2010;Jaillard et al 2013; Chaabani and Razgallah 2006;Trabelsi et al 2020). Trabelsi et al (2020) evidenced a prominent eustatic sea-level fall of latest Aptian to earliest Albian age that enhanced the emersion of the Central Tunisian Atlas domain.…”

Section: Geological and Stratigraphic Settingmentioning

confidence: 99%

“…This stage is now debated (Hichi et al 2020) and rejuvenated to the middle Albian (Latil 2011;Chihaoui et al 2010;Jaillard et al 2013; Chaabani and Razgallah 2006;Trabelsi et al 2020). Trabelsi et al (2020) evidenced a prominent eustatic sea-level fall of latest Aptian to earliest Albian age that enhanced the emersion of the Central Tunisian Atlas domain. This was followed by the Albo-Cenomanian transgression known at the global scale (Ben Youssef et al 1985;Abdallah 1989;Chaabani and Razgallah 2006;Chihaoui et al 2010;Ben Chaabane et al 2019).…”

Section: Geological and Stratigraphic Settingmentioning

confidence: 99%

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Evidence of halokinetic sequences in Albian deep carbonates around Triassic bodies in the ElKef-Tajerouine area, saliferous province of NW Tunisia

et al. 2021

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Facies and morphostructural enable the recognition of salt-sediment interaction close to the Triassic evaporites of the NE-SW elongated structures of the Kef-Tajerouine area, NW Tunisia. Unconformity-bound growth strata associated with passively rising salt diapirs defined as halokinetic sequences have been recognized within the Debadib-Ben Gasser Triassic salt body (El Kef-Tajerouine area), at the Triassic contact at Guern Halfaya, at J. Slata, and the South of J. Harraba. Salt tectonics was active during the period spanning from the late Albian in the salt province of NW of Tunisia. Facies analyses of Albian sediments revealed that the diapirism appears mainly in the deep facies of the Fahdene Formation. The halokinetic Albian sequences are formed owing to the variations in sediment-accumulation rate versus diapir-rise rate and roof thickness. The halokinetic sequences above and beside the Triassic salt bodies suggest passive diapirism at this time interval. Composite halokinetic sequences bounding unconformities correlate to periods of slower deposition (transgressive system tract).

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Section: Discussionmentioning

confidence: 73%

Section: Geological and Stratigraphic Settingmentioning

confidence: 99%

Section: Geological and Stratigraphic Settingmentioning

confidence: 99%

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Evidence of halokinetic sequences in Albian deep carbonates around Triassic bodies in the ElKef-Tajerouine area, saliferous province of NW Tunisia

et al. 2021

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“…In contrast, ARN-02 (at the top of the root layer) shows a parautochthonous-allochthonous transitional assemblage based on an increase of fern spores and erdtmanithecalean pollen, as well as lower values of araucariacean pollen than ARN-03 and ARN-04.The previous palaeobotanical accounts from Ariño concluded parautochthony based on the good palynomorph preservation, some samples even showing their original tetrad configuration, although they recognised that some charcoalified wood remains could be allochthonous(Villanueva-Amadoz et al, 2015;Vajda et al, 2016). Lastly, the studied ostracods constitute a relatively rich assemblage characterised by abundant specimens with closed carapaces (Figure5AA,BB), which together with the low percentage of broken individuals points out to autochthonous remains(Trabelsi et al, 2021).…”

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confidence: 68%

Dinosaur bonebed amber from an original swamp forest soil

Álvarez-Parra

Fuente

Peñalver³

et al. 2021

Preprint

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Dinosaur bonebeds with amber content, yet scarce, offer a superior wealth and quality of data on ancient terrestrial ecosystems. However, the preserved palaeodiversity and/or taphonomic characteristics of these exceptional localities had hitherto limited their palaeobiological potential. Here we describe the amber from the Lower Cretaceous dinosaur bonebed of Ariño (Teruel, Spain) using a multidisciplinary approach. Amber is found in both a root layer with amber strictly in situ and a litter layer namely composed of aerial pieces unusually rich in bioinclusions, encompassing 11 insect orders, arachnids, and a few plant and vertebrate remains, including a feather. Additional palaeontological data - charophytes, palynomorphs, ostracods - are provided. Ariño arguably represents the most prolific and palaeobiologically diverse locality in which fossiliferous amber and a dinosaur bonebed have been found in association, and the only one known where the vast majority of the palaeontological assemblage suffered no or low-grade pre-burial transport. That has enabled unlocking unprecedentedly complete and reliable palaeoecological data out of two complementary windows of preservation from the same site.

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“…The previous palaeobotanical accounts from Ariño concluded parautochthony based on the good palynomorph preservation, with some samples even showing their original tetrad configuration, although they recognised that some charcoalified wood remains could be allochthonous ( Villanueva-Amadoz et al, 2015 ; Vajda et al, 2016 ). Lastly, the studied ostracods constitute a relatively rich assemblage characterised by abundant specimens with closed carapaces ( Figure 5AA and BB ), which together with the low percentage of broken individuals points towards autochthonous remains ( Trabelsi et al, 2021 ).…”

Section: Discussionmentioning

confidence: 90%

Dinosaur bonebed amber from an original swamp forest soil

Álvarez-Parra

Fuente²,

Peñalver³

et al. 2021

eLife

Self Cite

View full text Add to dashboard Cite

Dinosaur bonebeds with amber content, yet scarce, offer a superior wealth and quality of data on ancient terrestrial ecosystems. However, the preserved palaeodiversity and/or taphonomic characteristics of these exceptional localities had hitherto limited their palaeobiological potential. Here, we describe the amber from the Lower Cretaceous dinosaur bonebed of Ariño (Teruel, Spain) using a multidisciplinary approach. Amber is found in both a root layer with amber strictly in situ and a litter layer mainly composed of aerial pieces unusually rich in bioinclusions, encompassing 11 insect orders, arachnids, and a few plant and vertebrate remains, including a feather. Additional palaeontological data—charophytes, palynomorphs, ostracods— are provided. Ariño arguably represents the most prolific and palaeobiologically diverse locality in which fossiliferous amber and a dinosaur bonebed have been found in association, and the only one known where the vast majority of the palaeontological assemblage suffered no or low-grade pre-burial transport. This has unlocked unprecedentedly complete and reliable palaeoecological data out of two complementary windows of preservation—the bonebed and the amber—from the same site.

show abstract

Ostracods as proxies for marginal marine to non-marine intervals in the mid-Cretaceous carbonate platform of the Central Tunisian Atlas (North Africa): Response to major short-term sea-level falls

Cited by 16 publications

References 62 publications

Evidence of halokinetic sequences in Albian deep carbonates around Triassic bodies in the ElKef-Tajerouine area, saliferous province of NW Tunisia

Evidence of halokinetic sequences in Albian deep carbonates around Triassic bodies in the ElKef-Tajerouine area, saliferous province of NW Tunisia

Dinosaur bonebed amber from an original swamp forest soil

Dinosaur bonebed amber from an original swamp forest soil

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