Abundant turtle fossils from two lower Miocene localities in which this lineage had not previously been studied are described herein. The Monte Pila and Fuenmayor, 10 km apart, both located the Autonomous Community of La Rioja (northern Spain), Ebro Basin. Information about turtles levels basin was until now restricted to finds made MN3 biozone Bardenas Reales Navarre. Several taxa recognized t...

Analyses of marine and terrestrial palynomorphs Ocean Drilling Program (ODP) Site 645 in Baffin Bay led us to define a new biostratigraphical scheme covering the late Miocene Pleistocene based on dinocyst acritarch assemblages. Four biozones were defined. The first one, from 438.6 m below sea floor (mbsf) 388 mbsf, can be assigned early Pliocene age (>4.5 Ma), common occurrence Cristadinium ...

Abstract The graptolite collection of Hermann Jaeger at the Museum für Naturkunde in Berlin, Germany includes a number Paraplectograptus and Gothograptus specimens. material provides another glimpse into dramatic changes affecting retiolitine graptoloids across Lundgreni Extinction Event mid Homerian (Wenlock, Silurian) which led to demise most earlier groups retiolitines. indicates that divers...

The French Massif Central represents one of the rare occurrences in Europe where lower Pleistocene fossil deposits are associated to a substantial volcanic activity. Thanks abundance zircons differentiated products Monts-Dore/Guéry stratovolcano, we were able for first time use U/Pb geochronology on zircon precisely date deposits. Zircon, weathering-proof heavy mineral, was dispersed over lands...

The Campo section in the Spanish Pyrenees is classical for shallow-water Paleocene-Eocene Thermal Maximum (PETM) studies. Despite extensive work last decades, stratigraphic location of onset negative carbon isotope excursion (CIE), and hence Paleocene/Eocene (P/E) boundary, remains a matter considerable debate section. Here we present new biostratigraphic, sedimentological carbon-isotopic data ...

Abstract Olenellid trilobites from the lower Cambrian of Iberian Peninsula are very scarce and poorly studied, making them difficult to compare with defined species include in biostratigraphic paleobiogeographic analyses. Based on newly collected specimens, we revise ‘ Callavia ? lotzei ’ Richter Richter, 1941 ‘Cumbres beds’ Cumbres de San Bartolomé ‘Herrerías shale’ Cañaveral León, Sierra del ...

Arenas Blancas is a poorly known fossiliferous site located in the lower reach of Chasicó creek (Buenos Aires Province, Argentina), with great relevance from biostratigraphic viewpoint. The Macrochorobates scalabrinii Biozone was defined this site, proposed as basis early Huayquerian Stage/Age (Late Miocene); however, geological context and faunal record have never been studied detail. In work,...

Sirs — Graptolites of Arenig age have been discussed repeatedly from the Ballantrae Complex (Stone & Strachan 1981; Stone & Rushton 1983, 2003; Rushton et al. 1986; Rushton & Stone 1988). The inferred biostratigraphic ranges were estimated to be from the basal Arenig Tetragraptus approximatus Biozone to the early Yapeenian. As the exact dating of the graptolite faunas in this sequence has some ...

This study presents the results derived from micropaleontological and organic geochemical analyses of mud breccia samples obtained (through gravity coring) five volcanoes (Gelendzhik, Heraklion, Moscow, Milano, Leipzig) located at Olimpi volcano field on Mediterranean Ridge accretionary complex. A thorough calcareous nannofossil semi-quantitative analysis was performed to determine biostratigra...