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19  Articles
1 of 3 pages  |  10  records  |  more records»
A single specimen of a new acanthomorph fish is described from a Turonian locality sampling the northern part of the Cretaceous Western Interior Seaway. This brings to three the number of acanthomorphs from Lac des Bois, Northwest Territories, Canada. The... see more

Una sucesión de cerca de 109 m de espesor del lectoestratotipo de la Formación La Frontera (Colombia) se describe junto con el contenido fósil de Wrightoceras munieri (Pervinquière, 1907), Vascoceras cf. constrictum (Renz and Álvarez, 1979), V. ... see more

At present, global paleoclimate simulations are prepared with bathtub-like, flat, featureless and steep walled ocean bathymetry, which is neither realistic nor suitable. In this article, we present the first enhanced version of a reconstructed paleobathym... see more

Fishes from Turonian deposits at Lac des Bois, Northwest Territories, Canada, have previously been described based on material from calcareous mudstone concretions collected in 1969. A more recent collecting trip to the locality in 2010 led to the discove... see more

Prehistoric studies in lithic raw materials have experienced some methodological innovations that have resulted in research breakthroughs. The transfer of methods from Geology to Archaeology has led to the development of a new discipline, Petroarcheology,... see more

Since the 50s, many changes are observed in the global climate namely; the warming of the atmosphere and ocean, decrease in the extent of snow and ice and rising sea levels. In addition to population pressure, the Maghreb countries suffer from drought whi... see more

Climate aridity and intensive exploitation due to uncontrolled pumping for irrigation have caused a drastic decrease in the piezometric level aquifers of ouazzi basin plain, and have seriously degraded groundwater quality. Overexploitation of coastal aqui... see more

The finding of Aphrodina dutrugei (Cocquand, 1862) in a rich collection of non-rudist bivalve fauna from the famous Cenomanian-Turonian carbonates of the Afro-Arabian Plate has permitted the reevaluation of venerid bivalves during an important period of t... see more

Morphometric analyses were performed on Biscutum constans, Zeugrhabdotus erectus, Discorhabdus rotatorius and Watznaueria barnesiae specimens from five sections spanning the Cenomanian-Turonian boundary interval including Oceanic Anoxic Event (OAE) 2 (~ 9... see more

1 of 3 pages  |  10  records  |  more records»