Oligocene to Pleistocene mudwhelks (Gastropoda: Potamididae, Batillariidae) of the Eurasian Paratethys Sea – Diversity, origins and mangroves

Harzhauser, Mathias; Guzhov, Aleksandr; Landau, Bernard M.; Kern, Andrea K.; Neubauer, Thomas A.

doi:10.1016/j.palaeo.2023.111811

Cited by 3 publications

(4 citation statements)

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“…biostrome unique serpulid-microbialitic bioherms were discovered (Harzhauser, Guzhov, et al, 2023). The study of these structures and the surrounding sediment also provide information important for the here described Nubecularia biostromal structures (Harzhauser, Guzhov, et al, 2023). Within this study cathodoluminescence analy-…”

Section: St Margarethen-zollhausmentioning

confidence: 78%

“…The Sarmatian part of the succession starts with about 7 m polymictic, cross bedded gravel with rare intercalations of marly sandstone with scattered bioherms between 5 and 5.5 m above the base (Figure 4). biostrome unique serpulid-microbialitic bioherms were discovered (Harzhauser, Guzhov, et al, 2023). The study of these structures and the surrounding sediment also provide information important for the here described Nubecularia biostromal structures (Harzhauser, Guzhov, et al, 2023).…”

Section: St Margarethen-zollhausmentioning

confidence: 82%

“…The entire bioconstruction reaches about 70 cm in thickness and could be traced along a 12‐m‐long transect. In the surroundings of the Nubecularia biostrome unique serpulid‐microbialitic bioherms were discovered (Harzhauser, Guzhov, et al., 2023). The study of these structures and the surrounding sediment also provide information important for the here described Nubecularia biostromal structures (Harzhauser, Guzhov, et al., 2023).…”

Section: Resultsmentioning

confidence: 99%

“…In the surroundings of the Nubecularia biostrome unique serpulid‐microbialitic bioherms were discovered (Harzhauser, Guzhov, et al., 2023). The study of these structures and the surrounding sediment also provide information important for the here described Nubecularia biostromal structures (Harzhauser, Guzhov, et al., 2023). Within this study cathodoluminescence analyses and SEM investigations on various facies and biota have been carried out, which clearly have shown that the limestones are strongly diagenetically altered (mostly by meteoric diagenesis) into coarse neomorphic calcite mosaics making further investigations such as fluorescence and geochemical analyses unreliable.…”

Section: Resultsmentioning

confidence: 99%

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Nubecularia‐coralline algal‐serpulid‐microbial bioherms of the Paratethys Sea—Distribution and paleoecological significance (upper Serravallian, upper Sarmatian, Middle Miocene)

Piller,

Harzhauser

2024

Geobiology

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Nubecularia bioherms represent unique bioconstructions that are restricted to the upper Serravallian of the Paratethys and have been reported since the 19th century. They occur in the Central Paratethys in the late Sarmatian and the Eastern Paratethys in the Bessarabian both regional stages of the respective Paratethyan areas. In this study, several locations in the Vienna and Styrian basins of the Central Paratethys were studied out of which four localities were documented in detail (Wolfsthal, Maustrenk, St. Margarethen—Zollhaus, Vienna—Ruzickagasse) to reconstruct their sedimentary setting, their internal composition, and their indications of environmental parameters. The detailed studies included logging of outcrop sections, petrographic, facies and biotic analyses of polished slabs and thin sections and also cathodoluminescence analyses. These concluded that these bioconstructions are not only composed of the foraminifer Nubecularia but represent a complex mixture and interrelationships of Nubecularia, serpulids and microbial carbonate. Four boundstone types can be differentiated: Nubecularia boundstone, Nubecularia‐coralline algal boundstone, stromatolitic/thrombolitic boundstone and serpulid‐nubeculariid‐microbial boundstone. The first 3 types are characteristic of specific localities; the fourth type occurs in all studied locations and represents the terminal association on top of the three other types. The three basal boundstones are predominantly of columnar growth form irrespective of dominance of Nubecularia, coralline algae or microbial carbonate, and the terminal boundstone is widely irregularly organized. The general depositional environment is characterized by cross‐bedded oolitic grainstones with abundant quartz grains, miliolid foraminifers and mollusks. Intercalated are microbial carbonates mostly stromatolites but also thrombolites. This indicates a general high water energy environment interrupted by more calm periods when the microbial carbonate was built. The 3 basal types of bioconstructions are interpreted to reflect decreasing food supply and/or oxygenation from Nubecularia over Nubecularia‐coralline algal to stromatolitic/thrombolitic boundstone. The serpulid‐nubeculariid‐microbial boundstone reflects an internal succession with a decrease of the same parameters. Water depth is considered very shallow ranging from 0 to a few meters, and salinity was normal marine to hypersaline. The reconstructed paleoenvironment with dominating oolite shoals and seagrass meadows was not restricted to the Central Paratethys but extended over the entire Paratethys and represented the largest oolite facies area of the entire Cenozoic!

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Section: St Margarethen-zollhausmentioning

confidence: 78%

Section: St Margarethen-zollhausmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Nubecularia‐coralline algal‐serpulid‐microbial bioherms of the Paratethys Sea—Distribution and paleoecological significance (upper Serravallian, upper Sarmatian, Middle Miocene)

Piller,

Harzhauser

2024

Geobiology

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Middle Miocene (Chokrakian, Karaganian) depositional environments of the Eastern Paratethys Sea in the southern Caspian Basin (Mazandaran Province, northern Iran)

Harzhauser,

Kranner,

Mandic

et al. 2024

Int J Earth Sci (Geol Rundsch)

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The marine biodiversity impact of the Late Miocene Mediterranean salinity crisis

Agiadi,

Hohmann,

Gliozzi

et al. 2024

Science

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Massive salt accumulations, or salt giants, have formed in highly restricted marine basins throughout geological history, but their impact on biodiversity has been only patchily studied. The salt giant in the Mediterranean Sea formed as a result of the restriction of its gateway to the Atlantic during the Messinian Salinity Crisis (MSC) 5.97 to 5.33 million years ago. Here, we quantify the biodiversity changes associated with the MSC based on a compilation of the Mediterranean fossil record. We conclude that 86 endemic species of the 2006 pre-MSC marine species survived the crisis, and that the present eastward-decreasing richness gradient in the Mediterranean was established after the MSC.

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Oligocene to Pleistocene mudwhelks (Gastropoda: Potamididae, Batillariidae) of the Eurasian Paratethys Sea – Diversity, origins and mangroves

Cited by 3 publications

References 51 publications

Nubecularia‐coralline algal‐serpulid‐microbial bioherms of the Paratethys Sea—Distribution and paleoecological significance (upper Serravallian, upper Sarmatian, Middle Miocene)

Nubecularia‐coralline algal‐serpulid‐microbial bioherms of the Paratethys Sea—Distribution and paleoecological significance (upper Serravallian, upper Sarmatian, Middle Miocene)

Middle Miocene (Chokrakian, Karaganian) depositional environments of the Eastern Paratethys Sea in the southern Caspian Basin (Mazandaran Province, northern Iran)

The marine biodiversity impact of the Late Miocene Mediterranean salinity crisis

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