1,721,026 research outputs found
Some species of Echinocythereis Puri, 1954 (Crustacea, Ostracoda) from Tortonian to Recent.
No full textFour specied of Echinocythereis Puri, 1954 have been studied and illustrated. Two previously known species, that is E. echinata (Sars, 1866) and E. scabra (Von Munster, 1830) are restudied and discussed. Two species, E. oertliana n. sp. from the Italian Tortonian, and E. vidua n. sp. from the Last Glacial of the Gulf of Naples, are introduced as new
Some new or poorly known Middle Miocene Ostracods of Malta Isle
No full textThe Upper Langhian-Early Serravallian ostracods of the section Ras-il-Pellegrin (Malta Isle) have been studied from systematic point of view. The ostracod fauna is constituted by 78 species., 53 of which have been identified or doubtfully identified. Ninenteen species are left in open nomenclature and 6 described and illustrated as new: Australoecia posterocurca n. sp., Cytherella fovea n. sp., Eucytherura bicornuta n. sp., Monoceratina praeoblita n. sp., Ruggeria caudoflexa n. sp. and Trachyleberidea lanceolata n. sp
The genus Cistacythereis Uliczny, 1969 (Ostracoda, Trachyleberididae) in the Recent of the Mediterranean Sea with a taxonomic revision
No full textThe systematic position of Cistacythereis and Hiltermannicythere is discussed and their subgeneric rank proposed. Samples collected in Recent sediments of the Mediterranean African coast and on the Tunisian shelf yelded two species of Cistacythereis (Cistacythereis) Uliczny, 1969 considered new for science, that is Cistacythereis (C.) carthaginiensis and Cistacythereis (C.) hannibalis, which are described and illustrated. The ecology of the subgenus is discussed, especially as far as the bathymetrical and climatic significance is concerned as a tool for paleoecological interpretatio
The genus Cistacythereis Uliczny, 1969 (Ostracoda, Trachyleberididae) in the Recent of the Mediterranean Sea with a taxonomic revision
No full textThe systematic position of Cistacythereis and Hiltermannicythere is discussed and their subgeneric rank proposed. Samples collected in Recent sediments of the Mediterranean African coast and on the Tunisian shelf yelded two species of Cistacythereis (Cistacythereis) Uliczny, 1969 considered new for science, that is Cistacythereis (C.) carthaginiensis and Cistacythereis (C.) hannibalis, which are described and illustrated. The ecology of the subgenus is discussed, especially as far as the bathymetrical and climatic significance is concerned as a tool for paleoecological interpretatio
Some new or poorly known Middle Miocene Ostracods of Malta Isle
No full textThe Upper Langhian-Early Serravallian ostracods of the section Ras-il-Pellegrin (Malta Isle) have been studied from systematic point of view. The ostracod fauna is constituted by 78 species., 53 of which have been identified or doubtfully identified. Ninenteen species are left in open nomenclature and 6 described and illustrated as new: Australoecia posterocurca n. sp., Cytherella fovea n. sp., Eucytherura bicornuta n. sp., Monoceratina praeoblita n. sp., Ruggeria caudoflexa n. sp. and Trachyleberidea lanceolata n. sp
Some new or poorly known Middle Miocene Ostracods of Malta Isle
No full textThe Upper Langhian-Early Serravallian ostracods of the section Ras-il-Pellegrin (Malta Isle) have been studied from systematic point of view. The ostracod fauna is constituted by 78 species., 53 of which have been identified or doubtfully identified. Ninenteen species are left in open nomenclature and 6 described and illustrated as new: Australoecia posterocurca n. sp., Cytherella fovea n. sp., Eucytherura bicornuta n. sp., Monoceratina praeoblita n. sp., Ruggeria caudoflexa n. sp. and Trachyleberidea lanceolata n. sp
The Ostracods in the palaeoenvironmental interpretation of the Late Langhian – Early Serravallian section of Ras il Pellegrin.
No full textThe distribution of ostracods in the composed Langhian-Serravallian section of Ras il Pellegrin (Malta) has been studied quantitatively to define the evolution of both the assemblages and the palaeoenvironmental conditions. 99 samples have been examined at a stratigraphic distance of about 1 m. 78 species have been identified whose assemblages indicate an epibathyal environment and a sedimentation depth of 500-700 m. In particular, the almost continuous occurrence of the genus Oblitacythereis, which characterizes the water layer just above the psychrosphere, together with the absolute absence of the psychrospheric genus Agrenocythere confirm this interpretation. The sudden drop of both the simple diversity and abundance near the boundary "Upper Globigerina Limestone" - "Blue Clays" Formations, especially at the top of the succession, in our opinion may be due to the decrease of dissolved bottom oxygen content supported also by the Cytherellidae
Some species of Echinocythereis Puri, 1954 (Crustacea, Ostracoda) from Tortonian to Recent.
No full textFour specied of Echinocythereis Puri, 1954 have been studied and illustrated. Two previously known species, that is E. echinata (Sars, 1866) and E. scabra (Von Munster, 1830) are restudied and discussed. Two species, E. oertliana n. sp. from the Italian Tortonian, and E. vidua n. sp. from the Last Glacial of the Gulf of Naples, are introduced as new
The genus Cistacythereis Uliczny, 1969 (Ostracoda, Trachyleberididae) in the Recent of the Mediterranean Sea with a taxonomic revision
No full textThe systematic position of Cistacythereis and Hiltermannicythere is discussed and their subgeneric rank proposed. Samples collected in Recent sediments of the Mediterranean African coast and on the Tunisian shelf yelded two species of Cistacythereis (Cistacythereis) Uliczny, 1969 considered new for science, that is Cistacythereis (C.) carthaginiensis and Cistacythereis (C.) hannibalis, which are described and illustrated. The ecology of the subgenus is discussed, especially as far as the bathymetrical and climatic significance is concerned as a tool for paleoecological interpretatio
Evidence of brackish lagoons in the Pliocene of Irpinia (Southern Italy).
No full textThe sedimentary section outcropping in the locality S. Andrea near Montecalvo Irpino has indicated the presence of paleoenvironmental characters which are referred to as a marine basin margin evolving to the regressional phase. This succession is constituted by coastal sandy sediments which end at the top with silty-clays lagoonal sediments. The analysis of the sedimentary facies and the studied ostracod fauna allowed the definition of 4 facies assemblages (A1-A4) each of which is characteristic of different environmental conditions: upper shoreface-foreshore, coastal eolic dunes, washover fan and brackish lagoon. As far as the ostracodes are concerned, two new species are established and illustrated, Euxinocythere (Maeotocythere) nasserii n. sp. and Leptocythere lagunaris n. sp. from brackish environments
- …
