Results 81 to 90 of about 3,990 (152)

Radiolários: estado do conhecimento e aplicações às geociências

open access: yesTerrae Didatica, 2015
Radiolários são protistas planctônicos com ampla distribuição espacial e temporal (entre bacias oceânicas e através do tempo geológico). O corpo protoplasmático pode ser dividido em endoplasma e ectoplasma, sendo que o primeiro desempenha principalmente ...
Karlos Guilherme Diemer Kochhann
doaj   +1 more source

Selknamella: a new agglutinated foraminiferal genus from the early Eocene southern high latitudes [PDF]

open access: yes, 2014
A new, unusual agglutinated foraminifera, Selknamella basketi n. gen., n. sp. is described from the Fuegian lower Eocene, Magallanes Basin, southernmost South America.
Arenillas, I.   +3 more
core  

Ofiuroideos del Cretácico Inferior de Patagonia: primer registro fósil articulado para el Mesozoico de América del Sur [PDF]

open access: yes, 2019
The first articulated remains of ophiuroids for the Mesozoic of South America are described from the Lower Cretaceous of Neuquén Basin, Argentina.
Comerio, Marcos   +6 more
core   +2 more sources

Late Cambrian acritarchs from the Santa Rosita Formation: implications for the Cambrian-Ordovician boundary in the eastern Cordillera of northwest Argentina [PDF]

open access: yes, 2003
Marine phytoplankton from the Late Cambrian are described for the first time in the Eastern Cordillera of northwest Argentina. The acritarch assemblage was recovered from an offshore lower mudstone unit towards the base of the Casa Colorada Member (Santa
Buatois, Luis Alberto   +2 more
core  

High resolution conodont-graptolite biostratigraphy in the Middle-Upper Ordovician of the Sierra de La Invernada Formation (Central Precordillera, Argentina) [PDF]

open access: yes, 2008
Outcrops on the western slope of the La Invernada Range, San Juan Precordillera (W Argentina), were surveyed for lithofacial analysis and graptolite-conodont high resolution biostratigraphy.
Albanesi, G. L.,   +3 more
core   +3 more sources

Bioestratigrafía de la sabana de Bogotá y sus alrededores

open access: yesBoletín Geológico, 1957
En adición al artículo precedente de E. HUBACH se tratan brevemente las zonas fosilíferas de Cundinamarca, desde el Devoniano hasta el Pleistoceno. Todos los fósiles de Cundinamarca descritos o conservados en el Museo Geológico Nacional, con excepción ...
Hans Bürgl
doaj   +1 more source

Nouvelles données paléogéographique et chronologiques sur les Caprinae (Mammalia, Bovidae) du Pléistocene moyen et supérieur d'Europe [PDF]

open access: yesMunibe Antropologia-Arkeologia, 2005
La revisión y el estudio de los Ovibovini, Ovini y Caprini provenientes del Pleistoceno Medio y Superior europeos permite precisar las modalidades, de inmigración, su origen y su evolución.
Evelyne Crégut-Bonnoure
doaj  

El plioceno continental de la depresión Guadix-Baza (Prov. Granada) y su fauna de micromamíferos. Nota preliminar [PDF]

open access: yes, 1984
Se realiza en este trabajo una primera síntesis paleontológica y  bioestratigráfica del Plioceno continental de la cuenca de Guadix-Baza. Este piso se encuentra representado en las formaciones de Gorafe-Huélago (sección de Gorafe) y Baza (secciones de ...
Agustí Ballester, Jordi   +1 more
core   +1 more source

Microfossils of the Yangtzeplacognathus crassus zone in the middle darriwilian of the argentine precordillera [PDF]

open access: yes, 2013
The San Juan Formation of the Eastern and Central Precordillera is composed mainly of fossiliferous limestone and marly limestone. The conodont biostratigraphy of the very top of this unit has been studied on several localities such as: Don Braulio, La ...
Beresi, Matilde Sylvia   +3 more
core   +1 more source

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