Results 91 to 100 of about 100,442 (300)

Hydrogeochemical and isotopic study of the groundwater aquifers in Hodein basin, southeastern desert, Egypt

open access: yesDiscover Water
The Hodein basin forms the largest basin in the southeastern portion of the Eastern Desert of Egypt, draining toward the Red Sea. The water resources study of the basin is a very important challenge because the first thing to be attended to is water ...
Hager M. Shams   +3 more
doaj   +1 more source

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

open access: yesBiological Reviews, EarlyView.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan   +2 more
wiley   +1 more source

On the Origin of the Oklad Breccia on the Island of Brac (Southern Croatia)

open access: yesGeologia Croatica, 2010
The Oklad carbonate polymictic breccia from Novo Selo on the island of Brac is a product of the partial destruction of Upper Cretaceous deposits during the Maastrichtian.
Božo Prtoljan, Željka Jernej Glovacki
doaj   +1 more source

Novos restos de Notosuchus terrestris Woodward, 1896 (Crocodyliformes: Mesoeucrocodylia) do Cretáceo Superior de Neuquén, Patagônia, Argentina [PDF]

open access: yes, 2008
New materials of Notosuchus terrestris are here described. They were found on Bajo de la Carpa Formation outcrops, near the Universidad Nacional del Comahue, Neuquén City.
Calvo, Jorge, Fiorelli, Lucas Ernesto
core  

Study of planktonic morphotype of the Abderaz Formation at type section, Iran [PDF]

open access: yes, 2009
Abderaz Formation at its type section with an age of Turonian-Early Campanian and a thickness of 300 m contains light grey shale and marl. The study of the planktonic foraminifera in isolated form led to differentiate three morphotype groups.
Meysam Shafiee Ardestani
core   +2 more sources

Loss, persistence and reversal of phenotypic traits

open access: yesBiological Reviews, EarlyView.
ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni   +4 more
wiley   +1 more source

Contribution to the Knowledge of Upper Cretaceous Beds in Kočevje and Gorski Kotar Area (NW Dinarides)

open access: yesGeologija, 1994
On the basis of the characteristic fossil associations biostratigraphic subdivision has been carried out in continuously deposited Upper Cretaceous sedimentary succession of the Kočevje and Gorski Kotar area.
Mario Pleničar, Stevo Dozet
doaj  

Clathrate hydrate crystallization

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source

Gladiopycnodontidae, a new family of pycnodontiform fi shes from the Late Cretaceous of Lebanon, with the description of three genera [PDF]

open access: yes, 2013
The osteology of Gladiopycnodus karami gen. et sp. nov., of Monocerichthys scheuchzeri gen. et sp. nov. and of Rostropycnodus gayeti gen. et sp. nov., three new fossil fishes from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail ...
Capasso, Luigi, Taverne, Louis
core   +3 more sources

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