BRIGUGLIO Antonino's profile
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BRIGUGLIO Antonino

  • Palaeontology, DISTAV, Genoa, Italy
  • Biostratigraphy, Fossil record, Invertebrate paleontology, Microfossils, Micropaleontology, Paleobiodiversity, Paleobiology, Paleoecology, Paleoenvironments, Sedimentology, Taphonomy
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Educational and work
29/12/2017 - current: Associate Professor in Palaeontology and Palaeoecology at DI.S.T.A.V., University of Genoa, Italy 05/04/2017 - 05/04/2023: Abilitazione Scientifica Nazionale per Associate Professor (Italian habilitation). Round 1532/2016, section 04/A2 for Structural Geology, Stratigraphic Geology, Sedimentology and Palaeontology. 7/2017 - 28/12/2017: Senior Assistant Professor (Geoscience) at Universiti Brunei Darussalam 7/2014 - 7/2017: Senior Lecturer (Geoscience) at Universiti Brunei Darussalam 01/2016 - Maître de conférences. Section 36 Terre solide : géodynamique des enveloppes supérieures, paléobiosphère. N° of qualification: 16236291582. Date of qualification 26/01/2016 3/2013 - 6/2014: Lecturer at Department of Paleontology, University of Vienna. 3/2013 - 5/2014: PostDoc Fellow at Natural History Museum of Vienna 6/2011-2/2013: Post-Doc position at University of Vienna. 3/2007-3/2011: Scientific Assistant at the University of Vienna in the department of Paleontology. 12/2010 Phd Thesis Defence. Title: Hydrodynamic behaviour of nummulitids. Qualification note: 1, with laude. 2001 - 2006: Università di Roma - La Sapienza. Dipartimento di Scienze della Terra, Master of Science in Geologia (108/110). Degree Thesis in Micropaleontology: "Biostratigraphy of Upper Eocene and Oligocene of Majella mountain (central Italy) with special reference to larger Foraminifers and Corals" under the supervision of prof. Johannes Pignatti (SPI-Site of interest). Minor graduate degree thesis in Applied Geophysics on a seismic line in the area of "Caldera di Latera" (Viterbo) under the supervision of dr. Michele Di Filippo.

Recommendation:  1

20 Oct 2020
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Evidence of high Sr/Ca in a Middle Jurassic murolith coccolith species

Recommended by based on reviews by Kenneth De Baets and 1 anonymous reviewer

New results and challenges in Sr/Ca studies on Jurassic coccolithophorids

This interesting publication by Suchéras-Marx et al. (2020) highlights peculiar aspects of geochemistry in nannofossils, specifically coccolithophorids. One of the main application of geochemistry on fossil shells is to get hints on the physiology of such extinct taxa. Here, the authors try to get information on the calcification mechanism and processes in Jurassic coccoliths. Coccoliths build a test made of calcium carbonate and one of the most common geochemical proxies used for this fossil group is the Sr/Ca ratio. This isotopic ratio has good chances to be successfully used as a robust proxy for paleoenvironmental reconstruction, but, concerning Jurassic coccoliths things seem to be not straightforward.

The authors managed to compare the isotopic value of Sr/Ca measured on Jurassic coccoliths from different taxonomic groups: the murolith Crepidolithus crassus and the placoliths Watznaueria contracta and Discorhabdus striatus. The results they got clearly show that the Sr/Ca ratio cannot be used as a universal proxy because these species exhibit very different values despite coming from the same stratigraphic level and having undergone minimal diagenetic modification. Data seem to point to a Sr/Ca ratio up to 10 times higher in the murolith species than in the placolith taxa (Suchéras-Marx et al., 2020). One of the explanation given here takes advantage of modern coccolith data and hints to specific polysaccharides that would control the growth of the long R unit in the murolith species. As always, there is plenty of space for additional research, possibly on modern taxa, to sort out the scientific questions that arise from this work.

References

Suchéras-Marx, B., Giraud, F., Simionovici, A., Tucoulou, R., & Daniel, I. (2020). Evidence of high Sr/Ca in a Middle Jurassic murolith coccolith species. PaleorXiv, dcfuq, version 7, peer-reviewed by PCI Paleo. doi: 10.31233/osf.io/dcfuq

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BRIGUGLIO Antonino

  • Palaeontology, DISTAV, Genoa, Italy
  • Biostratigraphy, Fossil record, Invertebrate paleontology, Microfossils, Micropaleontology, Paleobiodiversity, Paleobiology, Paleoecology, Paleoenvironments, Sedimentology, Taphonomy
  • recommender

Recommendation:  1

Reviews:  0

Educational and work
29/12/2017 - current: Associate Professor in Palaeontology and Palaeoecology at DI.S.T.A.V., University of Genoa, Italy 05/04/2017 - 05/04/2023: Abilitazione Scientifica Nazionale per Associate Professor (Italian habilitation). Round 1532/2016, section 04/A2 for Structural Geology, Stratigraphic Geology, Sedimentology and Palaeontology. 7/2017 - 28/12/2017: Senior Assistant Professor (Geoscience) at Universiti Brunei Darussalam 7/2014 - 7/2017: Senior Lecturer (Geoscience) at Universiti Brunei Darussalam 01/2016 - Maître de conférences. Section 36 Terre solide : géodynamique des enveloppes supérieures, paléobiosphère. N° of qualification: 16236291582. Date of qualification 26/01/2016 3/2013 - 6/2014: Lecturer at Department of Paleontology, University of Vienna. 3/2013 - 5/2014: PostDoc Fellow at Natural History Museum of Vienna 6/2011-2/2013: Post-Doc position at University of Vienna. 3/2007-3/2011: Scientific Assistant at the University of Vienna in the department of Paleontology. 12/2010 Phd Thesis Defence. Title: Hydrodynamic behaviour of nummulitids. Qualification note: 1, with laude. 2001 - 2006: Università di Roma - La Sapienza. Dipartimento di Scienze della Terra, Master of Science in Geologia (108/110). Degree Thesis in Micropaleontology: "Biostratigraphy of Upper Eocene and Oligocene of Majella mountain (central Italy) with special reference to larger Foraminifers and Corals" under the supervision of prof. Johannes Pignatti (SPI-Site of interest). Minor graduate degree thesis in Applied Geophysics on a seismic line in the area of "Caldera di Latera" (Viterbo) under the supervision of dr. Michele Di Filippo.