[PDF] Top 20 Callovian nautiloids from the Neuquén Basin, Argentina

... In the last years, the authors have gathered an interesting collection of Callovian, Tithonian and Berriasian nautiloids from different localities of the Neuquén ...of ... See full document

... Remarks.- The genus is assigned to the family Lissoceratidae assuming a long evolutionary line Lissoceras Bayle 1879- L i s s o c e r a t o i d e s S p a t h 1 9 2 3 b t o w h i c h i s a d d e d ... See full document

... to the base of the Mendozanus Zone, “Fauna A” of Parent et ...by the ammonites “Lithacoceras” ...to the Zitteli Zone by the ocurrence of the index and guide species ... See full document

... through the Darwini-lower Fallauxi Zones of the depression and less developed auxiliar sutural ...includes the microconch marked step of this trend occurred at the early Semiforme of ... See full document

... TIME-CORRELATION The ammonites described indicate that the base of the Vaca Muerta Fm in the study area belongs to the lowermost Tithonian Picunleufuense (Standard Chronostratigraphic) ... See full document

... On the other hand, we observed a spatial variation from NE extension directions in the western sector of the Atuel depocentre, to ENE directions in the south- eastern sector ...of ... See full document

... From the 19th century on, the exploration of Patagonian territories has made it possible to move forward in pioneering fronts to exploit natural ...Throughout the 20th century, in those ... See full document

... about the origin of S. koeneni: (1) it could derive from early ...occurs from a deeper stratigraphic position, clearly in the Alternans ...(e.g. the material from AC described ... See full document

... 1897. The lectotype [Steuer 1897 (Spanish translation 1921): ...comes from Arroyo Cieneguita (Mendoza), “bed III”, most likely from the interval Alternans-Koeneni zones (Upper Tithonian) as ... See full document

... 2000 from the Exelissa? arcuatoconcava ...1967 from the Wealden of northwestern Germany (= ...- The last mentioned species has higher whorls and more concave; after the ... See full document

... conch, the occurrence of short intercalary ribs on the uppermost flank, and by a younger stratigraphic ...position. The present species could be related with a small specimen from the ... See full document

... From the beginning of the Tithonian (Late Jurassic) a sudden and widespread marine transgression was followed by a prolonged cycle of regression and somerization until the Early Valanginian ... See full document

... collected from the Múzquiz formation, mention- ing they resemble ostreids of Tertiary ...ammonites from the same unit (Robeck et ...of the Adjuntas Formation beds, a 10 m thick interval ... See full document

... existencia de material tobáceo y espesas capas turbidíticas. En el tramo medio se intercalan pelitas negras con areniscas de color gris verdoso, y también niveles de conglomerados turbidíticos con alta partici- pación de ... See full document

... analyzed from the point of view of nonlinear dynamics, as the concept of fractality had not been yet sufficiently ...studied from the point of view of chaotic scattering, that is, as ... See full document

... Despite the timid wording of the legal text, citizens’ participation is a key stone in the logic of the ...WFD. The need of public involvement in environmental policy has been ... See full document

... evaluate the quality of Costa Rican waters, many sam- ples/cores have been obtained from the coastal waters since 1997, including a more intensive investigation in Golfo ...biphenyls. The ... See full document

... La Argentina tiene un gran potencial para el desarrollo de la energía solar. Las regiones andinas y subandinas, desde Jujuy hasta Neuquén, poseen un gran[r] ... See full document

... section, the eggshell is light colored (Fig. 4e). The bases of the prisms present a dark brown color in parallel nicols, and no clear pattern of extinction in cross nicols, suggesting that these ... See full document

... to the Monoil Project, ...of the project Escuela Politénica Nacional. The Shuar community at Santiago, Province ...Morona-Santiago. The Secretaría de Educación Superior, Ciencia, Tecnología e ... See full document