1,721,104 research outputs found
THE IMPORTANCE OF A WELL DEFINED GSSP FOR THE UPPER PLEISTOCENE FOR THE RECONSTRUCTION OF CLIMATE AND SEA LEVEL
No full textPossible origin of laminated sediments of the anoxic Bannock basin (eastern Mediterranean).
No full textCalcareous Nannofossil paleoecology in the Sapropel S1 of the Eastern Ionian Sea: paleoceanographic implications.
No full textCalcareous nannofossil biostratigraphy, biochronology and paleoecology at the Tortonian/Messinian boundary of the Faneromeni section (Crete).
No full textIntroduction to paleoclimatic and paleoceanographic records in Mediterranean Sapropels and Mesozoic Black Shales
No full textCalcareous nannofossil biostratigraphy and paleomagnetism of the Monte Tondo and Monte del Casino sections (Romagna, Apennines, Italy)
No full textAre productivity and stratification important to sapropel deposition? Microfossil evidence from late Pliocene i-cycle 180 at Vrica, Calabria
No full textThe Bartonian-Priabonian transition in the Mossano Section (Colli Berici, North-Eastern Italy): a tentative correlation between calcareous plankton and shallow-water benthic zonations. [Le passage Bartonien-Priabonien dans la coupe de Mossano (Colli Berici, Italie du Nord-Est): une tentative de corrélation entre les zones à plancton calcaires et à macroforaminiféres]
No full textA giant mosasaur (Reptilia, Squamata) with an unusually twisted dentition from the Argille Scagliose Complex (late Campanian) of Northern Italy Cretaceous Research
No full textA snout of a large-sized mosasaur from the Upper Cretaceous pelagic-turbiditic deposits of the Argille
Scagliose Complex of Northern Italy is described. Nannofossil assemblages from the immediately overlying
strata belong to the late but not latest Campanian calcareous nannofossil standard zone CC22, based
on the presence of Uniplanarius trifidus and Eiffellithus eximius. The specimen includes a broken premaxilla,
the anterior part of the maxillae and dentaries in articulation: preserved teeth show distinctive
characters previously unreported in other mosasaurs. Although the marginal teeth show a posterior
migration of the labial carina along the jaw length e diagnostic of derived mosasaurines e they are
unusual in the combination of features, including anteriormost teeth with asteroid cross section followed
by teeth with crowns twisted labioposteriorly from one-third to one-half of their height toward the
apices. A comparison between the new specimen and Mosasaurus hoffmanni skulls suggests an estimated
skull length comparable with some of the largest known mosasaurids. Consequently, the new specimen
represents the largest mosasaur and the largest fossil reptile found in Italy to date. Several lines of dental
evidence also support the interpretation of the Italian mosasaur as a macrophagous generalist predator.
Paleogeographic reconstruction for the Argille Scagliose Complex as well as the occurrence of typical
low- to mid-latitude nannofossils support a southern Tethyan margin affinity of the taxon
- …
