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Presenza di una associazione a Sphinctozoi (Poriferi) nei corpi carbonatici della Formazione di Monte Facito (Appennino Meridionale)
No full textLe corallinacee del Pliocene del Monte Cetona (Appennino settentrionale, Italia)
No full textFacies analysis of fossil rhodoliths
Coralline red algae from Monte Cetona (northern Apennines, Italy)
No full textCoralline red algae, Apennines (Italy
Biostratigrafia a foraminiferi del Cretaceo Superiore della successione di Parco Priore (Calcare di Altamura, Piattaforma Apula, Italia Meridionale)
No full textThis study focuses on the biostratigraphic analysis of an Upper Cretaceous 57 m-thick stratigraphic
sedimentary succession outcropping in a quarry at Parco Priore, near the city of Altamura in the
Murge (Southern Italy).
In the studied area the Upper Cretaceous shallow water carbonate successions represent restricted
facies deposited in inner shelf settings within the Apulian Platform (sensu D’Argenio, 1974). During
the Mesozoic, the Apulian Platform was one of the peri-adriatic platforms (D’Argenio, 1974) localized
along the southern margin of the Tethys. These platforms have been often compared to the presentday
Bahamas islands for their general shape, size, subsidence rates as well as their inner platform
architecture (Bernoulli, 2001).
The studied sedimentary succession, belonging to the Calcare di Altamura formation, is mainly
characterised by bedded white-reddish bioclastic, often re-crystallised or dolomitised, mudstones/
wackestones. White-grey calcarenitic and calcisiltitic bedded limestones and thin bedded palaeosoil
levels are also present. The micropalaeontological assemblage is dominated by benthic foraminifers
(Accordiella conica, Cuneolina pavonia, Moncharmontia apenninica, Minouxia conica, Rotorbinella
scarsellai, Dicyclina schlumbergeri, Murgeina apula, Cuneolina spp., Pseudolituonella sp.,
Aeolisaccus kotori, miliolids, textularids) and dasycladacean algae (mainly Thaumatoporella
parvovesiculifera).
This benthic association allows to refer the Parco Priore succession to the Coniacian‒lower
Campanian time interval. Sedimentological, lithological and micropalaeontological characteristics
of the studied succession point to a low-energy inner carbonate platform setting with occasional subaerial
exposures. [Upper Cretaceous benthic foraminiferal biostratigraphy of Parco Priore (Calcare
di Altamura formation, Apulian Platform, southern Italy)
New data on the Triassic-Jurassic deep-water succession of Campofiorito (Sicanian Domain, Western Sicily)
No full textAngelita a new name for the Permian foraminifer Angelina Altiner, 1988 (Family Pseudovidalinidae)
No full textCoralline red algal assemblage from the Middle Pliocene shallow-water temperate carbonates of the Monte Cetona (Northern Apennines, Italy)
No full textDuring the Pliocene and Pleistocene, the Monte
Cetona (Northern Apennines, central Italy) was part of an
elongated island. The Middle Pliocene deposits around
the Monte Cetona are represented by shallow-water marine
carbonates rich in coralline red algae and bryozoans.
These skeletal carbonates, characterising a coralline algaldominated
factory, were analysed in terms of microfacies,
taxonomy, and growth-forms of coralline red algal assemblage.
Three microfacies were distinguished on the basis
of component distribution and fabric analysis: coralline
algal rudstones, coralline algal floatstones, and bioclastic
packstones. Skeletal components are commonly abraded,
bioeroded, and encrusted. The shallow-water skeletal carbonates
are strongly bioturbated and any primary sedimentary
structure is obliterated. The distribution of the coralline
growth-forms suggests a decreasing hydrodynamic gradient
from the coralline algal rudstone, through the coralline
algal floatstone to the bioclastic packstone microfacies. The
coralline algal flora consists of eight species representing
the subfamilies Lithophylloideae, Mastophoroideae
and Melobesioideae. The assemblage is dominated by
lithophylloids. Other biogenic components are bryozoans,
barnacles, echinoderms, and benthic foraminifera. These
coralline algal assemblages were deposited just above the
fair-weather wave base and indicate a shallow-marine temperate
water setting for the eastern Tyrrhenian Sea during
the Mid Pliocene
Lower Senonian benthic foraminifer biostratigraphy of the Parco Priore succession (Calcare di Altamura Formation, southern Italy)
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