1,721,101 research outputs found
Norman Douglas e la geologia nella Terra delle Sirene / Norman Douglas and the Geology in the Siren Land
No full textThe geological aspects on the geology of Capri and Sorrento Peninsula occurring in the Douglas' novel Siren Land are showed and critically discussed
Comunità bentoniche ad alghe dasicladali, foraminiferi ed ostracodi in facies di shelf e di transizione nell'intervallo Trias superiore-Giurassico nell'area tetidea.
No full textRe-description of Cymopolia miocenica (Karrer) (Chlorophyta, Dasycladales) from the Late Miocene of Sicily and the Middle Miocene of Banat (Romania)
No full textProfessor Giuliano Ruggieri found a rich dasyclad flora in siliciclastic sediments of a Late Miocene (lower Messinian) succession from Sicily (Petralia Sottana, Palermo). The algal remains belong to the genus Cymopolia Lamouroux (Cretaceous-Recent). Morphological and biometrical characters allow the Sicilian taxon to be attributed to Cymopolia miocenica, a species formerly described by Karrer in 1868 as Dactylopora miocenica, and known only in the Middle Miocene of the Paratethys area (Romania and Hungary). A lectotype, chosen among Karrer’s material housed in the Naturwissenschaften Museum of Vienna, is here indicated. The remains of Cymopolia miocenica consist of sterile and fertile calcareous articles. The sterile bodies are usually cylindrical, while the fertile ones are elongated to short barrel-shaped. All the articles are strongly calcified except around the outer swollen part of primary laterals of fertile whorls. The original aragonitic calcification looks still preserved, a fact probably related to the conservation in clay. The calcified structure exhibits the same pattern as in the extant species. A reconstruction of the alga is supplie
Mesozoic and Cenozoic marine benthic calcareous algae with particular regard to Mesozoic Dasycladaleans
No full textA review of the Mesozoic algae is supplied, an outline of the distribution of algae during the geological time is give
Introduzione
No full textLo studio sulla preistoria di Capri viene inquadrato nel più ampio scenario dello sviluppo della scienz
Remarks on Neomeris cretacea STEINMANN (chlorophyta, dasycladales) from the Cretaceous of Orizaba (type-locality), Mexico
No full textThe species is re-described on the basis of the type-material. A paleontological reconstruction is supplied
Ricerche Paleontologiche e Antropologiche in Marocco (Regioni di Gharb, Marocco Orientale e Atlas)
No full textAnalisi paleoecologica e sistematica delle Alghe Verdi Dasicladali del Paleocene dei Pirenei occidentali
No full textCon il presente lavoro si è voluto intraprendere per la prima volta uno studio paleontologico sistematico sull’associazione ad alghe dasicladali presente nelle successioni di piattaforma carbonatica dei Pirenei occidentali. Alla fase di ricerca bibliografica, scelta e campionatura delle successioni stratigrafiche, preparazione delle sezioni sottili di roccia, sono seguite le fasi dello studio e descrizione tassonomica delle alghe verdi dasicladali, e quella dall’applicazione di metodi statistici a nuove metodologie di studio dei campioni
Site 8-Late Triassic of Buonabitacolo (Salerno, Campania)
No full textAn Upper Triassic carbonate succesion is described near Buonabitaolo (Salerno province, Italy). Griphoporella curvata fron calcareous levels is pointed out
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