The Berriasian/Valanginian boundary in the Mediterranean region: new data from the Caravaca and Cehegı&amp;#x0301;n sections, SE Spain

A revision of the calpionellid bio-chronostratigraphy in Western Sicily (Italy) was carried out, in order to update the taxonomy of this group, through the identification of some genera (Borziella, Longicollaria, Chitinoidella, Dobeniella, Sturiella, Borzaiella and Praecalpionellites) and species (Remaniella catalanoi POP, Remaniella duranddelgai POP, Remaniella colomi POP, Remaniella borzai POP, Remaniella filipescui POP) recorded for the first time in the area. The studied sections, belonging to the Trapanese and Saccense Domains (Western Sicily), include at the base the upper portion of the Rosso Ammonitico Unit (Upper Tithonian), followed by the Lattimusa Formation (Lower Cretaceous). The quantitative and biostratigraphic analysis of the calpionellid assemblages allowed us to identify 13 assemblages and to define some important bioevents for the Upper Tithonian-Valangianian interval. The recorded calpionellid bioevents allowed us to recognize Zone/Subzone schema, which have been correlated with the bio-chronostratigraphy previously proposed for the Western Tethys. RIASSUNTOUna revisione della biostratigrafia a Calpionellidi in sezioni della Sicilia Occidentale ha permesso di aggiornare la tassonomia di questo gruppo, con l'identificazione di generi (Borziella, Longicollaria, Chitinoidella, Dobeniella, Sturiella, Borzaiella e Praecalpionellites) e delle specie (Remaniella catalanoi Pop, Remaniella duranddelgai Pop, Remaniella colomi Pop, Remaniella borzai Pop, Remaniella filipescui Pop) rinvenuti per la prima volta in Sicilia Occidentale. Le sezioni studiate appartengono ai Domini Saccense e Trapanese. Tali sezioni sono caratterizzate alla base dell' Unità Rosso Ammonitico e successivamente dalla Formazione della Lattimusa. L'analisi biostratigrafica e quantitativa delle associazioni a Calpionellidi ha permesso di identificare 13 associazioni e di caratterizzare alcuni eventi principali, nell'intervallo Titoniano superiore-Valanginiano.

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“…The base of Calpionellites Zone coincides with the Berriasian/Valanginian boundary, according to Aguado et al 2000.…”

Section: Biostratigraphy and Chronostratigraphymentioning

confidence: 94%

Calpionellid biostratigraphy of the Upper Tithonian–Upper Valanginian interval in Western Sicily (Italy)

2007

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“…The zone is known from France (Le Hé-garat and Remane 1968; Blanc et al 1994), Spain (Allemann et al 1975;Aguado et al 2000), Italy (Catalano and Liguori 1971;Channell and Grandesso 1987;Grün and Blau 1997;Andreini et al 2007), Slovakia (Borza 1984;Borza and Michalík 1986;Reháková 1995Reháková , 2000aReháková and Michalík 1997a, b), Poland (Wierzbowski and Remane 1992;Pszczółkowski 1996;Pszczółkowski and Myczyński 2004;Grabowski and Pszczółkowski 2006), Romania (Рор 1974Romania (Рор , 1986bRomania (Рор , 1994Romania (Рор , 1997bBarbu and Melinte-Dobrinescu 2008), Greece (Skourtsis-Coroneou and Solakius 1999), Austria (Vašíček et al 1999;Reháková 2004, 2007;Reháková et al 1996) (Adatte et al 1994). It is equivalent to the Calpionellopsis simplex-Calpionellites darderi Zone of Azimi et al (2008).…”

Section: Correlationsmentioning

confidence: 99%

“…The zone is known from Slovakia (Borza 1984;Reháková 1995;Reháková and Michalík 1997a, b), Poland (Pszczółkowski and Myczyński 2004), Romania (Рор 1994), Italy (Channell and Grandesso 1987;Grün and Blau 1997;Andreini et al 2007), Spain (Aguado et al 2000), Austria (Vašíček et al 1999;Reháková 2004, 2007;Reháková et al 1996), Hungary (Fözy et al 2010), Cuba (Pszczółkowski and Myczyński 2010) and Mexico (Adatte et al 1994). It is known as the Е Zone in Turkey (Altiner and Özkan 1991) and Tunisia (Ben Abdesselam-Mahdaoui et al 2010, 2011, as the Calpionellites darderi Subzone in Romania sensu Рор (Pop 1989) and in Mexico sensu Trejo (Trejo 1980).…”

Section: Correlationsmentioning

confidence: 99%

“…The subzone is known from Romania (Рор 1986a, 1994, 1997b), Slovakia (Reháková 1995;Reháková and Michalík 1997а, b), Poland (Pszczółkowski and Myczyński 2004), Italy (Grün and Blau 1997;Andreini et al 2007), Spain (Aguado et al, 2000), Austria (Reháková et al 1996;Vašíček et al 1999;Reháková 2004, 2007), Hungary (Fözy et al 2010) and Cuba (Pszczółkowski and Myczyński 2010). In Bulgaria, Lakova et al (1999Lakova et al ( , 2007 and Petrova et al (2010) reported the subzone from the Western Balkan Mts and the Western Fore-Balkan, and Ivanova et al (2000Ivanova et al ( , 2002 from the Western Srednogorie and the Moesian Platform.…”

Section: Correlationsmentioning

confidence: 99%

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Towards a standard Tithonian to Valanginian calpionellid zonation of the Tethyan Realm

Lakova¹,

Petrova²

2013

Acta Geologica Polonica

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ABSTRACT:Lakova, I. and Petrowa, S. 2013. Towards a standard Tithonian to Valanginian calpionellid zonation of the Tethyan Realm. Acta Geologica Polonica, 63 (2), 201-221. Warszawa.A calpionellid zonal scheme is proposed for the Tithonian through Valanginian pelagic carbonates of the Western Balkan Unit, based on the vertical ranges of 57 chitinoidellid and calpionellid species recognized. This zonal scheme consists of calpionellid zones that are widely accepted in the Mediterranean Realm, such as the zones of Chitinoidella, Praetintinnopsella, Crassicollaria, Calpionella, Calpionellopsis, Calpionellites and Tintinnopsella. Subzonal divisions are comparable to those in the Carpathians. Direct correlations between ammonite and calpionellid ranges suggest that the base of the Upper Tithonian corresponds to the FO of Chitinoidella boneti; that of the Upper Berriasian to the FO of the genus Calpionellopsis; and the base and top of the Lower Valanginian to the FO and LO of the genus Calpionellites respectively. Correlations of the calpionellid zonation in the study area with zonations in other areas are discussed.

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“…During the Early Aptian, according to Erba (1994), boreal species disappeared and a decline of nannoconids was recognized at global level. From palaeoecological point of view, Nannoconus has been interpreted as being restricted to the lower photic zone (Erba, 1994;Coccioni et al, 1992, Bersezio et al, 2002, related to oligotrophic palaeoenvironments and warm surface waters (Perch-Nielsen, 1979;Erba, 1994;Aguado et al, 2000) with distribution in epicontinental basins (Busson and Nöel, 1991). The rare presence of the nannoconids and a dominance of Diazomatolithus lehmanii in the studied section probably reflects biotic changes which characterized the Aptian interval.…”

Section: Discussionmentioning

confidence: 99%

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2008

Studia UBB, Geologia

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ABSTRACT. We investigated Lower Cretaceous calcareous nannofossils from Southern Apuseni Mountains. The studied section from Bucium Cerbu quarry is characterized by flysch deposits (rhythmical interbedded marls and sandstones), which were assigned to the Căbeşti Formation. The studied nannofossil assemblages yielded a high diversity. The Early Aptian age of the studied deposits was assigned based on both the Tethyan and Boreal calcareous nannofossil zonations. Several reworked Valanginian nannofossils were also observed in the Early Aptian in situ nannofloras. The nannofloras are dominated by tethyan and cosmopolitan species. Besides Boreal species are also present. The presence of boreal taxa (e.g., Kokia borealis, K. stelatta) in the Tethyan Realm reflects the palaeobiogeographical distribution and the biotic changes between Tethys and Boreal Realms in the Southern Apuseni Mountains. In the studied assemblages, the dominant species are Diazomatolithus lehmanii and Watznaueria barnesiae, which can reflect a high fertility in the surface water masses.

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The Berriasian/Valanginian boundary in the Mediterranean region: new data from the Caravaca and Cehegı́n sections, SE Spain

Cited by 57 publications

References 17 publications

Calpionellid biostratigraphy of the Upper Tithonian–Upper Valanginian interval in Western Sicily (Italy)

Calpionellid biostratigraphy of the Upper Tithonian–Upper Valanginian interval in Western Sicily (Italy)

Towards a standard Tithonian to Valanginian calpionellid zonation of the Tethyan Realm

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