Early Pleistocene shallow marine decapod crustaceans fauna from Fabro Scalo (western Umbria, central Italy): taxonomic inferences and palaeoenvironmental reconstruction

Baldanza, Angela; Bizzarri, Roberto; Famiani, Federico; Pasini, Giovanni; Garassino, Alessandro; Antonio, De Angeli

doi:10.1127/0077-7749/2014/0389

Cited by 12 publications

(32 citation statements)

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“…Baldanza et al (2011) and Bizzarri et al (2015) documented the presence of a 20 km wide area of volcanic products around the town of Orvieto, both in continental and/or marine sections biostratigraphically dated to Early Pleistocene. These volcanic products are reported, in recent stratigraphic schemes, as "pre Vulsini volcanic events", inside the "Chiani-Tevere" informal Lithostratigraphic Unit (Baldanza et al, 2014;Martinetto et al, 2015). Their study might also provide further constraints for understanding the timing of volcanic events of this geologic area and the relative geodynamic implications.…”

Section: Resultsmentioning

confidence: 74%

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Combining machine learning techniques, microanalyses and large geochemical datasets for tephrochronological studies in complex volcanic areas: New age constraints for the Pleistocene magmatism of central Italy

Petrelli

Bizzarri

Morgavi

et al. 2017

Quaternary Geochronology

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Characterization, correlation and provenance determination of tephra samples in sedimentary sections (tephrochronological studies) are powerful tools for establishing ages of depositional events, volcanic eruptions, and tephra dispersion. Despite the large literature and the advancements in this research field, the univocal attribution of tephra deposits to specific volcanic sources remains too often elusive. In this contribution, we test the application of a machine learning technique named Support Vector Machine to attempt shedding new light upon tephra deposits related to one of the most complex and debated volcanic regions on Earth: the Pliocene-Pleistocene magmatism in Italy. The machine learning algorithm was trained using one of the most comprehensive global petrological databases (GEOROC); 17 chemical elements including major (SiO O 5 ) and selected trace (Sr, Ba, Rb, Zr, Nb, La, Ce) elements were chosen as input parameters. We first show the ability of support vector machines in discriminating among different Pliocene-Pleistocene volcanic provinces in Italy and then apply the same methodology to determine the volcanic source of tephra samples occurring in the Caio outcrop, an Early Pleistocene sedimentary section located in Central Italy. Our results show that: 1) support vector machines can successfully resolve high-dimensional tephrochronological problems overcoming the intrinsic limitation of two-and three-dimensional discrimination diagrams; 2) support vector machines can discriminate among different volcanic provinces in complex magmatic regions; 3) in the specific case study, support vector machines indicate that the most probable source for the investigated tephra samples is the so-called Roman Magmatic Province. These results have strong geochronological and geodynamical implications suggesting new age constraints (1.4 Ma instead of 0.8 Ma) for the starting of the volcanic activity in the Roman Magmatic Province.

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Section: Resultsmentioning

confidence: 74%

“…Sedimentological-stratigraphic log for the Caio section. The chronostratigraphic scale is from Cohen and Gibbard (2011), Foraminifer Zones are from Iaccarino and Premoli Silva (2007), Nannofossil Zones are from Backman et al (2012), Volcanoclastic horizons are fromBaldanza et al (2011), and Lithostratigraphic Units are fromBaldanza et al (2014).…”

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confidence: 99%

Combining machine learning techniques, microanalyses and large geochemical datasets for tephrochronological studies in complex volcanic areas: New age constraints for the Pleistocene magmatism of central Italy

Petrelli

Bizzarri

Morgavi

et al. 2017

Quaternary Geochronology

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“…1). The characters of the chela fitted those of Petrochirus sanctilazzari Pasini, Garassino & De �ngeli, 2014, recently reported from the early Pleistocene of Fabro Scalo (Umbria, central Italy) by Pasini, Garassino & De Angeli in Baldanza et al (2014). Pasini & Garassino (2015) assigned the specimen from the Pliocene of Masserano to Petrochirus sanctilazzari, but erroneously quoted it as fabroensis, trivial name later replaced with sanctilazzari.…”

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confidence: 96%

Petrochirus sanctilazzari Pasini, Garassino & De Angeli, 2014 non Petrochirus fabroensis Pasini, Garassino & De Angeli, 2014 (Anomura, Diogenidae) from the Pliocene of Masserano (Piedmont, NW Italy)

Pasini¹,

Garassino²

2015

Nat Hist Sci

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“…Ristori (1891) described R. propinqua based on a sole well-preserved female specimen from Città della Pieve (Perugia, Umbria, Italy). Later, Pasini, Garassino & De Angeli in Baldanza et al (2014) and Famiani et al (2015) reported additional specimens of this species from Fabro Scalo (Terni, Umbria, Italy) and OrzalumeCottano (Orvieto, Umbria, Italy), revising this poorly known species. Moreover, Bizzarri & Baldanza (2009) attested that the fossiliferous area reported by Ristori (1891) has to be referred to early Pleistocene (GelasianCalabrian).…”

Section: Tethyranina Propinquamentioning

confidence: 99%

“…6A-E2. -Garassino et al 2014 Description (see Pasini, Garassino & De Angeli in Baldanza et al, 2014).…”

Section: Palaeogeographic Distributionmentioning

confidence: 99%

Critical review of fossil record of Ranina Lamarck, 1801 (Decapoda, Brachyura, Raninidae), with description of Tethyranina n. gen.

Pasini¹,

Garassino²

2018

Nat Hist Sci

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Pasini and Garassino (2017a) revised the fossil record referred to Ranina Lamarck, 1801 by Karasawa et al. (2014). As result only four species were considered as possible valid species within Ranina: R. palmea E. Sismonda, 1846, R. pellattieroi De Angeli and Beschin, 2011, R. propinqua Ristori, 1891, and R. ranina (Linnaeus, 1758). These species are herein revised and discussed, based on updated observations and critical review of the fossil materials and on a re-definition of the main diagnostic proxy characters sensu Schweitzer (2003) of the type species R. ranina (Linnaeus, 1758). This review allows us to establish that R. ranina from the middle Pleistocene of Ryukyu Islands (Japan) and R. palmea from the middle Miocene of Italy have consistent proxy characters with the extant Ranina to be considered as valid species within the genus. Moreover, Tethyranina n. gen., with T. propinqua (Ristori, 1891) n. comb., is herein proposed to accommodate this questionable fossil species previously assigned to Ranina. Finally R. pellattieroi De Angeli and Beschin, 2011, lacking the typical characters of Ranina, is considered as a doubtful species within Ranininae.

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Early Pleistocene shallow marine decapod crustaceans fauna from Fabro Scalo (western Umbria, central Italy): taxonomic inferences and palaeoenvironmental reconstruction

Cited by 12 publications

References 0 publications

Combining machine learning techniques, microanalyses and large geochemical datasets for tephrochronological studies in complex volcanic areas: New age constraints for the Pleistocene magmatism of central Italy

Combining machine learning techniques, microanalyses and large geochemical datasets for tephrochronological studies in complex volcanic areas: New age constraints for the Pleistocene magmatism of central Italy

Petrochirus sanctilazzari Pasini, Garassino & De Angeli, 2014 non Petrochirus fabroensis Pasini, Garassino & De Angeli, 2014 (Anomura, Diogenidae) from the Pliocene of Masserano (Piedmont, NW Italy)

Critical review of fossil record of Ranina Lamarck, 1801 (Decapoda, Brachyura, Raninidae), with description of Tethyranina n. gen.

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