Pliensbachian ammonites from the Central Apennines, Italy (Acquasparta section) – a revision of Fischer's collection and new data

Meister, Christian; Blau, Joachim

doi:10.1127/0077-7749/2014/0430

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…In Italy (Appenines) and Spain (Betic Basin), the Gemmellaroceras are present up to the upper part of the Jamesoni Subchronozone. Several species of Tropidoceras are particularly frequent between the uppermost part of the Jamesoni Subchronozone and the Valdani Subchronozone (Rivas, 1981;Dommergues et al, 1983Dommergues et al, , 1994Braga et al, 1984;Donovan, 1990;Ferretti, 1991;Venturi et al, 2005Venturi et al, , 2007Blau & Meister, 2011;Meister & Blau, 2014).…”

Section: Black Shalesmentioning

confidence: 99%

Stratigraphy and Biochronostratigraphy of the Lower Pliensbachian (Jurassic) from the Asturian basin (Northern Spain)

et al. 2023

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A stratigraphic study of the carbonate deposits from the interval between the uppermost Sinemurian and the base of the Upper Pliensbachian is presented herein. For this purpose, four expanded sections of the Asturian Basin, in Northern Spain, were sampled. The sections are located between Rodiles E section (Villaviciosa municipality) and Playa de Vega section (Ribadesella municipality). The ammonites recorded in over 100 successive levels of this sector enabled the substantial improvement of the biochronostratigraphic scale of reference; making it comparable with those defined for other basins of the Iberian Peninsula and other areas of the western Tethys. The lower boundary of the Pliensbachian is indicated by the first appearance of Gemmellaroceras aff. aenigmaticum (Gemmellaro) below the first appearance of the genus Apoderoceras. The upper boundary is defined by the first record of the Protogrammoceras. (Matteiceras) subgenus which in some levels is associated with Amaltheus stokesi (Sowerby). The boundaries between the zones and subzones were able to be established accurately in most cases. The ammonite assemblages are similar to those established for the NW European Province. Some intervals, however, include species typical of the Mediterranean Province. Among these, the Taylori Subchronozone (Gemmellaroceras) and the transition between the Jamesoni Subchronozone and the Valdani Subchronozone (Tropidoceras) can be highlighted. Additionally, taking into consideration the succession between of ammonite genera and species, 27 horizons were identified, 24 of which correspond to the Lower Pliensbachian, and the other 3 to the uppermost Sinemurian and the lowermost part of the Upper Pliensbachian. Moreover, the identification of 3 of the Lower Pliensbachian horizons were based upon the evolution of the Mediterranean Tropidoceras.

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Section: Black Shalesmentioning

confidence: 99%

Stratigraphy and Biochronostratigraphy of the Lower Pliensbachian (Jurassic) from the Asturian basin (Northern Spain)

et al. 2023

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“…costicillatum (Fucini) -detractum (Fucini) and the Aalenian Vacekia stephensi Buckman. These taxa are temporarily abundant in western Tethyan localities (see Meister et al, 2011;Sandoval et al, 2012;Meister and Blau, 2014), but in Bulgaria they appear to be an absolute rarity. While the former taxon is represented by a single finding, the latter one is supported by the age-diagnostic Brasilia geisingensis Dietze et al (see Figs 2,3), which, in turn, is a graphoceratid with well-recorded stratigraphical position in SW Germany (Dietze et al, 2014).…”

Section: Hildoceratidae Hyatt 1867 and Graphoceratidae Buckman 1905mentioning

confidence: 99%

Rare and little-known ammonites from the Lower and Middle Jurassic of the Western and Central Balkan Mts (Bulgaria)

Metodiev

2019

Geologica Balcanica

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This paper presents insufficiently or previously unknown Jurassic ammonites from 21 localities and sections of the Western and Central Balkan Mts (Bulgaria). The total stratigraphical range of the studied fauna corresponds to a broad interval, from the Pliensbachian (Lower Jurassic) to the Callovian (Middle Jurassic), with emphasis on the ammonites from the Bajocian–Callovian interval. These ammonites belong to 36 species and 23 genera that are affiliated to 12 ammonite families: Polymorphitidae, Acanthopleuroceratidae, Amaltheidae, Hildoceratidae, Graphoceratidae, Strigoceratidae, Sonniniidae, Stephanoceratidae, Oppeliidae, Tulitidae, Parkinsoniidae, and Perisphinctidae. Of them, 13 species have been left in open nomenclature. This account comprises both newly recorded ammonite taxa and redefined ammonite species from older collections. The new evidence also includes the upper Bathonian species Siemiradzkia mangoldi sp. n., which was recorded from south-eastern France as well. Although being represented mainly by single specimens, often with no other supporting material, the newly discovered taxa have high stratigraphical significance, being both valuable additions to well-known Bulgarian ammonite zonal associations and new indications of ammonite successions that have quite poorly been identified in Bulgaria to date. In this regard, they are useful for better dating of the sedimentary successions in Bulgaria and are valuable for the purposes of correlation outside Bulgaria.

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Early Jurassic (Sinemurian) Ammonoids from the Boulders of the Greek Quarry, Central Crimea

Zaitsev,

Ippolitov,

Гуляев

2023

Stratigrafiâ. Geologičeskaâ korrelâciâ

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The Sinemurian ammonoids from the boulders in the Greek quarry (Salgir River basin, south-east of Simferopol city) are described. The assemblages are represented by Phylloceratidae (Phylloceras, Zetoceras and Partschiceras), Juraphyllitidae (Juraphyllites and Paradasyceras), Schlotheimiidae (Phricodoceras), Arietitidae (Coroniceras, Metophioceras, Arnioceras and Asteroceras), Oxynoticeratidae (Gleviceras), Echioceratidae (Plesechioceras, Orthechioceras, Echioceras and Paltechioceras), Eoderoceratidae (Eoderoceras), Epideroceratidae (Epideroceras) and, questionably, Coeloceratidae (?Tetraspidoceras). A new species Asteroceras dommerguesi sp. nov. is described. A sequence of biostratigraphic units was reconstructed and correlated with known biostratigraphic units (zones, subzones and biohorizons) of the Mediterranean area. The ammonite assemblages were found to be close to those of the northern Tethyan margin (Pontic and Austroalpine subprovinces).

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Pliensbachian ammonites from the Central Apennines, Italy (Acquasparta section) – a revision of Fischer's collection and new data

Cited by 3 publications

References 2 publications

Stratigraphy and Biochronostratigraphy of the Lower Pliensbachian (Jurassic) from the Asturian basin (Northern Spain)

Stratigraphy and Biochronostratigraphy of the Lower Pliensbachian (Jurassic) from the Asturian basin (Northern Spain)

Rare and little-known ammonites from the Lower and Middle Jurassic of the Western and Central Balkan Mts (Bulgaria)

Early Jurassic (Sinemurian) Ammonoids from the Boulders of the Greek Quarry, Central Crimea

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