Coralline algae (Corallinales, Rhodophyta) in western and central Mediterranean Messinian reefs

Braga, Juan C.; Vescogni, Alessandro; Bosellini, Francesca; Aguirre, Julio

doi:10.1016/j.palaeo.2009.02.022

Cited by 57 publications

(28 citation statements)

References 48 publications

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“…Similarly, in Mediterranean Messinian reefs, species richness is much higher in reefs facing the open oceans than in reefs in intermontane basins affected by river discharge of terrigenous sediment (Braga et al, 2009). The high species richness of corallines in Maraa observed to be associated with the low-tolerance Acropora assemblage (cA5) in cores supports the notion that these algae were sensitive to the poor water quality of Tiarei during deglaciation.…”

Section: Coralgal Assemblage Variations In Spacementioning

confidence: 62%

Variation in deglacial coralgal assemblages and their paleoenvironmental significance: IODP Expedition 310, “Tahiti Sea Level”

Abbey

Webster

Braga

et al. 2011

Global and Planetary Change

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Section: Coralgal Assemblage Variations In Spacementioning

confidence: 62%

Variation in deglacial coralgal assemblages and their paleoenvironmental significance: IODP Expedition 310, “Tahiti Sea Level”

Abbey

Webster

Braga

et al. 2011

Global and Planetary Change

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“…Family, subfamily, and generic circumscriptions follow Woelkerling (1988), Verheij (1993), Braga et al (1993Braga et al ( , 2009a, Aguirre and Braga (1998), Harvey et al (2003), Braga (2003), and Iryu et al (2009).…”

Section: Methodsmentioning

confidence: 95%

“…In Neogene rhodalgal platforms, the coralline red algal assemblages differ in taxonomic composition similarly to Recent shallow water counterparts of the western and central Mediterranean basin (e.g., Braga and Aguirre 2001;Bassi et al 2006;Braga et al 2009a). These assemblages also show distinct rhodolith growth-form zonation in the slope break/distal ramp transitional settings (Benisek et al 2009).…”

Section: Introductionmentioning

confidence: 99%

An Upper Miocene siliciclastic-carbonate ramp: depositional architecture, facies distribution, and diagenetic history (Capo Vaticano area, southern Italy)

Gramigna

Bassi

Russo

2011

Facies

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During the Late Miocene, the marginal areas of the Mediterranean Basin were characterized by the development of mixed siliciclastic-carbonate ramps. This paper deals with a temperate siliciclastic-carbonate ramp (late Tortonian-early Messinian in age) which crops out in the Capo Vaticano area, Southern Apennines (Italy). Carbonate components are mainly represented by calcitic skeletal fragments of coralline red algae, bryozoans, bivalves, and larger foraminifera, whereas corals, brachiopods, echinoderms, and planktonic foraminifera are subordinate. In the studied ramp, the depositional geometries of the main unit, the 'Sabbie gialle ad Heterostegina', show a gradual steepening from low/middle (dip about 2-5°) to steep slope settings (up to 25°). The microfacies observations, the quantitative analyses of the main biogenic components as well as the rhodolith shapes and growth forms allowed the differentiation between the middle and the outer ramp depositional setting and the refining of the stratigraphic framework. The middle ramp is characterized by coralline red algal debris packstone facies often associated with larger foraminiferal floatstone/packstone facies, while the outer ramp is characterized by rhodolith floatstone/rudstone facies. These facies pass basinward into typical openmarine deposits (planktonic foraminiferal facies). The taxonomic composition of the coralline red algal assemblage points to a temperate paleoclimate and emphasizes the Miocene Mediterranean phytogeographic patterns. The absence of non-skeletal grains (ooids and green algae), the paucity of Porites patch reefs, the rare occurrence of primary marine cementation, all confirm that the studied ramp was poorly lithified within a warm-temperate setting. The flat depositional profile of the ramp can be related to the absence or paucity of primary marine carbonate cements.

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“…Fossil material of S. molle is recorded from Messinian age (7.246 -5.333 Ma) reefs in the western and central Mediterranean Sea (BRAGA et al, 2009), but, according to those authors, the species apparently disappeared from the Mediterranean during the Messinian Salinity Crisis.…”

Section: New Hauterivian Record Of Sporolithonmentioning

confidence: 97%

Heydrichia (?) poignantii, sp. nov. (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland

Woelkerling¹,

Granier²,

Dias-Brito³

2014

Carnets Geol.

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A detailed morphological-anatomical account of the species is provided, and its placement in Heydrichia is discussed in relation to current classification proposals. Comparisons with the four other known species of the genus, all non-fossil, show that H. poignantii is the only known species of Heydrichia in which thalli are encrusting to sparsely warty to horizontally layered with overlapping lamellate branches that commonly appear variously curved or arched, and in which thalli have sporangial complexes that become buried in the thallus. The evolutionary history of Heydrichia remains uncertain, but available data suggest that the genus may have diverged from the sporolithacean genus Sporolithon, known as early as Hauterivian times (c. 129.4-132.9 ± 1 Ma) from Spain (and newly reported here from Switzerland), or it may have arisen from a graticulacean alga such as Graticula, dating from mid-Silurian times . Current data also suggest that Heydrichia is more likely to have arrived in Brazil from Central Atlantic waters than from higher latitude South Atlantic waters. This implies that currently living species in southern Africa probably arose later from ancestors further equatorward in the South Atlantic, although confirming studies are needed. All non-fossil species of Heydrichia are known only from the southern hemisphere.Key Words: Heydrichia; Sporolithaceae; Sporolithon; fossil coralline red algae; Brazil; Switzerland; Hauterivian; Albian; Cenomanian. (Sporolithaceae, Sporolithales, Rhodophyta), représen-tant le enregistrement fossilifère confirmé du genre, ont été découverts en lames minces dans des calcaires albiens de la Formation de Riachuelo, Bassin de Sergipe, et dans des calcaires d'âge AlbienCénomanien de la Formation de Ponta do Mel, Bassin de Potiguar, au NE du Brésil. Les caractéristiques morphologiques et anatomiques de cette espèce sont détaillées et son attribution au genre Heydrichia est débattue en tenant compte des propositions de la classification actuelle. Des comparaisons avec les quatre autres espèces recencées du genre, toutes inconnues à l'état fossile, montre que H. poignantii est la seule espèce connue du genre Heydrichia dans laquelle les thalles sont encroûtants à modéré-ment verruqueux, à horizontalement stratifiés avec recouvrements de leurs excroissances lamellaires qui, fréquemment, paraissent diversement arquées ou cintrées et dans laquelle les compartiments sporangiques qui s'enfouissent dans ce thalle. L'histoire évolutive de Heydrichia demeure incertaine, mais les données disponibles suggèrent que le genre pourrait s'être différencié à partir du genre Sporolithon de la Famille des Sporolithacées, connu déjà dans l'Hauterivien (c. 129.4-132.9 ± 1 Ma) d'Espagne (et nouvellement découvert en Suisse, comme nous le rapportons dans cette publication), mais il pourrait tout aussi bien être issu d'une algue de la Famille des Graticulacées, telle que Graticula, trouvée dans des séries d'âge Silurien moyen (aux environs de -427 à -435 Ma). Les éléments en notre possession suggèrent éga...

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Coralline algae (Corallinales, Rhodophyta) in western and central Mediterranean Messinian reefs

Cited by 57 publications

References 48 publications

Variation in deglacial coralgal assemblages and their paleoenvironmental significance: IODP Expedition 310, “Tahiti Sea Level”

Variation in deglacial coralgal assemblages and their paleoenvironmental significance: IODP Expedition 310, “Tahiti Sea Level”

An Upper Miocene siliciclastic-carbonate ramp: depositional architecture, facies distribution, and diagenetic history (Capo Vaticano area, southern Italy)

Heydrichia (?) poignantii, sp. nov. (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland

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