Pliocene Atlantic molluscan assemblages from the Mondego Basin (Portugal): Age and palaeoceanographic implications

Silva, Carlos Marques da; Landau, Bernard; Doménech, Rosa; Martinell, Jordi

doi:10.1016/j.palaeo.2009.11.016

Cited by 29 publications

(34 citation statements)

References 12 publications

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“…The medium monthly SST is very variable along the Portuguese shelf, reaching 20°C in the SW coast (from Nazaré canyon till Cape S. Vincent; 39-37°N). This can contribute to the definition of a transitional faunal break zone, separating northern "Franco-Iberian" colder water communities from southern, "Mediterranean-Moroccan" warmer water communities such was suggested by Silva et al (2010). Rapid changes in shelf conditions, such as the presence of canyons cannot be discarded in the latitudinal distribution of species (Cunha et al, 2011;Spalding et al, 2007).…”

Section: Environmental-biological Relationshipsmentioning

confidence: 92%

“…Lioberus agglutinans, Turritella turbona) (Silva et al, 2006). In fact, SST seems to be a key factor in certain species distribution (Silva et al, 2006(Silva et al, , 2010Raffi et al, 1985). Along the Iberian coasts, the minimal reproduction temperature for some thermophilic gastropod species is 20°C (Silva et al, 2010;Raffi et al, 1985).…”

Section: Environmental-biological Relationshipsmentioning

confidence: 99%

“…In fact, SST seems to be a key factor in certain species distribution (Silva et al, 2006(Silva et al, , 2010Raffi et al, 1985). Along the Iberian coasts, the minimal reproduction temperature for some thermophilic gastropod species is 20°C (Silva et al, 2010;Raffi et al, 1985). The medium monthly SST is very variable along the Portuguese shelf, reaching 20°C in the SW coast (from Nazaré canyon till Cape S. Vincent; 39-37°N).…”

Section: Environmental-biological Relationshipsmentioning

confidence: 99%

“…This area has a particular ecological and biogeographic interest (Saldanha, 1995), since it corresponds to the majority of the Western and part of the Southwestern Iberian coast, a region of contact between warmer waters from northern Africa and the Mediterranean Sea and colder waters from the North Atlantic (Fiúza, 1983). The area between the latitudes 38°and 40°N mark the transition between two different climatic marine zones (thus, biogeographically distinct), both through the pre-glacial Pliocene, before 3.0 Ma, as well as at the Present-day (Silva et al, 2006(Silva et al, , 2010Monegatti and Raffi, 2007). Furthermore, the Portuguese shelf is dissected by several canyons, important morphological and sedimentary boundaries (Oliveira et al, 2007), and presents a variety of hydrodynamic conditions (Bettencourt et al, 2004) and sediment types (Martins et al, 2012), which increase the probability of occurrence of different faunas.…”

Section: Introductionmentioning

confidence: 99%

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Diversity, distribution and ecology of benthic molluscan communities on the Portuguese continental shelf

Martins

Sampaio

Quintino

et al. 2014

Journal of Sea Research

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The diversity, ecology and distribution patterns of the Portuguese continental shelf malacofauna and its relationship with abiotic factors were studied from samples covering the western and the southern coast. A total of 2544 specimens were identified corresponding to 169 taxa, mostly bivalves (62% of the total taxa). Abra alba was the most abundant and the most frequent species. The alpha diversity ranged from one species to 21 spp. 0.1 m −2. The highest abundance and diversity were obtained in coarser sediments. Multivariate analysis based on the abundance data identified five major malacological groups: (a) Angulus pygmaeus and Thracia villosiuscula in the coarser sediments of the western inner and mid shelf; (b) Calyptraea chinensis and Leptochiton cancellatus in the heterogeneous and organically enriched sediments of the southern shelf; (c) Angulus fabula, Spisula subtruncata and Pharus legumen in the near shore exposed fine sands; (d) A. alba in muddy fine sands, mainly in the northwestern shelf and (e) Saccella commutata in the southwestern deeper shelf. The malacofauna could be used as a proxy for the major benthic communities known to occur in this area, except in muddy patches, where molluscs were absent or low abundant. Median grain-size, gravel content, depth and hydrodynamic regime were the environmental factors best related to the malacofauna spatial distribution patterns. This study sets the first record of Astarte borealis, Leptochiton asellus, Mercenaria mercenaria and Montacuta phascolionis in the Portuguese shelf and the most northern limit for Anadara polii, Glycymeris nummaria, and Leptochiton algesirensis along the northwestern shelf. This study also gives new ecological insights for several species, in terms of bathymetric range distribution, as well as habitat type and highlighted the transitional characteristics of the molluscan communities from this particular northeastern Atlantic area where boreal, temperate and subtropical faunas can coexist.

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Section: Environmental-biological Relationshipsmentioning

confidence: 92%

Section: Environmental-biological Relationshipsmentioning

confidence: 99%

Section: Environmental-biological Relationshipsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Diversity, distribution and ecology of benthic molluscan communities on the Portuguese continental shelf

Martins

Sampaio

Quintino

et al. 2014

Journal of Sea Research

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“…A highly diversified flora, composed by subtropical, temperate and Mediterranean species, characterized that region [135]. In the west of the Iberian Peninsula, the SST of the Mondego estuary, Portugal, were estimated between 19.0-23.5 ∘ C during the Zanclean and the Piacenzian, up to 3 Ma [136]. During the MPWP, the MAT in Europe increased.…”

Section: Piacenzianmentioning

confidence: 99%

Observing the past to better understand thefuture: a synthesis of the Neogene climate inEurope and its perspectives on present climatechange

2015

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A review of the entire Neogene climate in Europe is a useful tool for climate researchers, synthesizing present day knowledge on a variety of past warmer climate modes thus facilitating the debate regarding possible future climate scenarios in the Old Continent. This work centres on the European scenario, debating possible future projections and describing the Miocene and Pliocene climate in the Old Continent. With present evidences of a global warming scenario, it is highly important that we look at past climatic events in order to better predict future climate changes impact in biodiversity. The review presented here synthesizes the literature regarding climate, faunal and floral evolution for the European Neogene, and aims to help palaeoclimatic researchers and climatologists to characterize some of the boundary conditions for modelling possible analogous of IPPC climate scenarios. If the future climate projections come to be true, it is shown that the Pliocene, and particularly the Mid Piacenzian Warm Period, should be considered as the best analogue for the impact of a warming climate in Europe.

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Systematics and palaeobiogeography ofMegacarditaSacco in the Neogene of Europe (Bivalvia, Carditidae)

Perna

Mandić

Harzhauser

2017

Papers in Palaeontology

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Megacardita Sacco is a poorly known and misunderstood carditid genus in the subfamily Venericardiinae. The only species frequently reported from the Miocene of Europe is the type species M. jouanneti (Basterot), often considered to be a highly variable species. The genus also has been used for fossil and living species from disparate areas and ages. In addition to M. jouanneti, six other species were identified in the present work: M. brocchii (Michelotti), M. guenterti Pfister & Wegm€ uller, M. hoernesi sp. nov., M. ignorata Cossmann & Peyrot, M. laeviplana (Dep eret) and M. dertavicula (Sacco). The new species is described from the Langhian of the Vienna Basin. The seven species cover a stratigraphic interval ranging from middle Burdigalian to Messinian, and a palaeogeographical area encompassing the north-east Atlantic, the Western and Central Paratethys, and the Mediterranean. The genus apparently radiated from the central European basins, but its evolutionary relations with other carditids remain unclear. Two additional species are also tentatively referred to Megacardita: M.? laticosta (Eichwald) from the Langhian of Ukraine and Poland, and M.? redoniana nom. nov. for Cardita striatissima auct. non Cailliaud in Mayer from the Messinian-Early Pliocene of France and Portugal. There is no evidence of a wider distribution of Megacardita, either stratigraphically or geographically.

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Pliocene Atlantic molluscan assemblages from the Mondego Basin (Portugal): Age and palaeoceanographic implications

Cited by 29 publications

References 12 publications

Diversity, distribution and ecology of benthic molluscan communities on the Portuguese continental shelf

Diversity, distribution and ecology of benthic molluscan communities on the Portuguese continental shelf

Observing the past to better understand thefuture: a synthesis of the Neogene climate inEurope and its perspectives on present climatechange

Systematics and palaeobiogeography ofMegacarditaSacco in the Neogene of Europe (Bivalvia, Carditidae)

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