Presence de faunes bathyales atlantiques dans le Pliocene et le Pleistocene de Mediterranee (detroit de Messine, Italie)

Barrier, Pascal; Geronimo, I. Di; Christian, Michel; Roux, M.; Zibrowius, Helmut

doi:10.2113/gssgfbull.v.4.787

Cited by 35 publications

(17 citation statements)

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“…Similar cnidarian seascape, such as that depicted above in the Á lamos section, has been described in Messinian deposits in the Carboneras Basin (SE Spain) (Barrier et al 1992), in Pleistocene sediments cropping out around the Messina Strait (S Italy) (Di Geronimo 1987;Zibrowius 1987;Barrier et al 1989Barrier et al , 1996Di Geronimo et al 2005), and in Pleistocene carbonates from Saint Paul Bay (Rhodes, Greece) .…”

Section: Submarine Cnidarian Seascape In the Manilva Basinsupporting

confidence: 70%

“…Many az-coral assemblages have been described in Neogene deposits of the Mediterranean (Vertino et al 2014(Vertino et al , 2019; however, well-preserved 3-D frameworks are rare except for those found in the uppermost Pliocene-Pleistocene deposits in Italy (Di Geronimo 1987;Zibrowius 1987;Barrier et al 1989Barrier et al , 1996Di Geronimo et al 2005;Taviani et al 2005Taviani et al , 2011Taviani et al , 2019Vertino et al 2014Vertino et al , 2019. The longterm record of az-coral diversity shows a decline in species' richness since the Burdigalian (early Miocene) to the present.…”

Section: Introductionmentioning

confidence: 99%

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Mesophotic azooxanthellate coral communities and submarine seascape during the early Pliocene in Manilva Basin (S Spain)

Aguirre

Ocaña²,

Pérez-Asensio

et al. 2020

Coral Reefs

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Azooxanthellate corals are the most abundant macrofossils in the lower Pliocene deposits of the Manilva Basin (S Spain). In this paper, the cnidarian fossil assemblages have been studied in order to reconstruct the original communities and to depict the seascapes. Benthic foraminiferal assemblages associated with the corals have also been analysed to infer the palaeoenvironmental conditions in which they developed. Two sections have been studied. In the Canuto section, Coenosmilia fecunda dominates the cnidarian assemblage, followed by Asterosmilia cf. prolifera and Asterosmilia sp., which are all preserved as moulds and casts. Benthic foraminiferal assemblages indicate oligotrophic conditions and deposition from the middle platform to the upper slope. The Á lamos section is characterized by Madrepora oculata, Dendrophyllia ramea, Asterosmilia cf. prolifera, Asterosmilia sp., Coenosmilia fecunda, and gorgonians of the Isididae family (most likely Keratoisis melitensis and/or Lepidisis longiflora), as well as a basal holdfast attributed to a member of either Primnoidae or the Chrysogorgiidae family. Here, corals preserve their original skeletons. Benthic foraminifers suggest deposition in oligotrophic conditions in mid-outer platform settings. Corals in the Canuto section formed autochthonous fossil assemblages, while in the Á lamos section they were slightly displaced from their original growth positions to form parautochthonous fossil concentrations. The cnidarian community in the Canuto section was characterized by low-tier organisms either attached to hard substrates provided by skeletal remains (Coenosmilia fecunda) or inhabiting fine-grained bottoms (Asterosmilia spp.). In the Á lamos section, Coenosmilia fecunda and Asterosmilia spp. occupied the lowest tier levels. The gorgonians, isidids and members of the Primnoidae or Chrysogorgiidae families, colonized both soft and hard substrates, dominating the next tier level. Finally, Madrepora oculata and Dendrophyllia ramea settled on submarine cliffs or on large blocks derived from substrate, inhabiting the highest position in the community. Large specimens of gorgonians could have also occupied this position.

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Section: Submarine Cnidarian Seascape In the Manilva Basinsupporting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Mesophotic azooxanthellate coral communities and submarine seascape during the early Pliocene in Manilva Basin (S Spain)

Aguirre

Ocaña²,

Pérez-Asensio

et al. 2020

Coral Reefs

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“…Much of our knowledge of this important carbonate realm is based on heterozoan carbonates (James, 1997) deposited in an array of shelf settings along the Southern Ocean margins of Australian and New Zealand, the largest area of active cool‐water accumulation on the globe (Nelson, 1978; James & von der Borch, 1991; James et al ., 1997, 1999, 2001; Feary et al ., 2000). The majority of Cenozoic heterozoan carbonates documented to date are also interpreted as open shelf accumulations (Lowry, 1970; David et al ., 1972; Barrier et al ., 1989; James & Bone, 1991; Boreen & James, 1995; Spjeldnaes & Moissette, 1997) analogous to the temperate margins of New Zealand and southern Australia (Wass et al ., 1970; Nelson, 1978, 1988; Nelson et al ., 1988; James et al ., 1992, 1994, 2001; Boreen & James, 1993). Similar modern cool‐water carbonates occur in northern latitudes along exposed coastlines of Europe (Boillot, 1965; Wilson, 1988) and Pacific Canada (Nelson & Bornhold, 1983) and above the Arctic Circle on storm‐swept temperate banks (Henrich et al ., 1997).…”

Section: Introductionmentioning

confidence: 99%

Pliocene sedimentation in a shallow, cool‐water, estuarine gulf, Murray Basin, South Australia

et al. 2004

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The Pliocene Norwest Bend Formation is a well-preserved succession of terrestrial and shallow-marine deposits in the Murray Basin, South Australia. Sediments in this unit consist of two discrete terrigenous clastic-rich, decametre-scale sequences, or informal members, which record episodes of marine incursion during the Early and Late Pliocene respectively. The base of each sequence is a transgressive lag and/or strandline deposit that is transitional upwards into a highstand, subtidal, terrigenous clastic and cool-water carbonate sediment accumulation. The top of each sequence is incised by fluvial channels that are filled by river deposits which formed as relative sea-level fell and terrestrial environments prograded basinward. Sedimentological data suggest that gross stratigraphic architecture was primarily determined by glacioeustasy. Differences in sedimentary style between these two sequences, however, reflect a major climatic change that took place in southern Australia during the mid-Pliocene. The lower quartzose sand member is formed of siliciclastic sediment derived from prolonged, deep, subaerial weathering and contains a bivalvedominated, cool-temperate, open-marine mollusc assemblage. These sediments accumulated under an equitable, relatively warm, humid climate. The Murray Basin during this time, because of high fluvial discharge, was a salt-wedge estuary with typical estuarine circulation. In contrast, the upper, oyster-rich member is typified by large monospecific oyster buildups that grew in restricted coastal environments. Strandline deposits contain a warm-temperate skeletal assemblage. Contemporaneous aeolian sediments accumulated under warm, semi-arid climatic conditions. Well-developed ferricrete, silcrete and calcrete horizons reflect cyclic conditions of rainwater infiltration and evaporation in the seasonally dry climate that typifies southern Australia today. Highly seasonal rainfall produced an estuary that fluctuated annually from being well to partially mixed. These Pliocene sediments support the notion that mollusc-rich facies are the signature of cool-water carbonate accumulations in inboard neritic environments. Unlike bryozoans that dominate the outer parts of Cenozoic cool-water carbonate shelves, molluscs evolved to exploit an array of coastal ecosystems with wide salinity variations and variable sedimentation rates.

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“…The quantity and quality of the descending organic matter that reaches the deep-sea floor are a function of a variety of factors, including primary production, phytoplankton sinking rate, zooplankton grazing rate, water column depth, mixed layer depth and proximity to land and input sources [23,24].…”

Section: Deep-sea Biodiversitymentioning

confidence: 99%

“…The current Mediterranean deep-water fauna is less closely related to the Atlantic bathyal fauna than it was in the Pleistocene [23], due to the lack of Atlantic deep water fauna entering the Mediterranean Sea [26].…”

Section: Deep-sea Biodiversitymentioning

confidence: 99%

Deep-Sea Biodiversity in the Aegean Sea

Gönülal¹,

Dalyan²

2017

Mediterranean Identities - Environment, Society, Culture

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Presence de faunes bathyales atlantiques dans le Pliocene et le Pleistocene de Mediterranee (detroit de Messine, Italie)

Cited by 35 publications

References 0 publications

Mesophotic azooxanthellate coral communities and submarine seascape during the early Pliocene in Manilva Basin (S Spain)

Mesophotic azooxanthellate coral communities and submarine seascape during the early Pliocene in Manilva Basin (S Spain)

Pliocene sedimentation in a shallow, cool‐water, estuarine gulf, Murray Basin, South Australia

Deep-Sea Biodiversity in the Aegean Sea

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