Results 1 to 10 of about 66 (58)

New age constraints on the Lower Jurassic Pliensbachian–Toarcian Boundary at Chacay Melehue (Neuquén Basin, Argentina) [PDF]

open access: yesScientific Reports, 2022
The Pliensbachian–Toarcian boundary interval is characterized by a ~ 3‰ negative carbon-isotope excursion (CIE) in organic and inorganic marine and terrestrial archives from sections in Europe, such as Peniche (Portugal) and Hawsker Bottoms, Yorkshire ...
Aisha H. Al-Suwaidi   +10 more
doaj   +2 more sources

The temperate marine Peruvian Province: How history accounts for its unusual biota. [PDF]

open access: yesEcol Evol
Among extant temperate marine biotas, the Peruvian Province is highly unusual in, among other traits, a very high incidence of limpets, gastropods with a labral tooth (to assist in predation), a reversed latitudinal diversity gradient, and the absence of several ecological guilds.
Vermeij GJ   +7 more
europepmc   +2 more sources

Los camélidos fósiles del sitio Toca da Esperança, Bahia, Brasil [PDF]

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2006
El sitio Toca da Esperança, Bahia, es un yacimiento paleontológico que presenta restos de camélidos fósiles com datación del Pleistoceno Medio, entre 295,000 y 250,000 años A.P.
Alfredo José Altamirano
doaj   +2 more sources

La paleontología de invertebrados en la Revista del Museo de La Plata: 1891-2018

open access: yesRevista del Museo de La Plata, 2022
El número y contenido de los trabajos sobre Paleontología de Invertebrados publicados por la Revista del Museo de La Plata (RMLP) se correlaciona directamente con el desarrollo de la disciplina en el contexto institucional. Se diferencian cuatro épocas:
Alberto C. Riccardi
doaj   +1 more source

Biostratigraphic significance of the latest Cambrian-earliest Ordovician agnostoid trilobites from Northwestern Argentina

open access: yesGeologica Acta, 2003
The biostratigraphic significance of the latest Cambrian-earliest Ordovician trilobite agnostoids from northwestern Argentina is summarized. A characterization of the faunas recognized below and above the Cambrian-Ordovician boundary is presented on the ...
M.F. Tortello
doaj   +1 more source

A new burmagomphid dragonfly from the Eocene of Patagonia, Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2017
A new burmagomphid anisopteran, Satelitala soberana gen. et sp. nov. is described from the lower Eocene of Laguna del Hunco, Patagonia, Argentina. The new genus is characterised by hindwing characters such as the subdiscoidal triangle not elongated; anal
Julián F. Petrulevičius
doaj   +1 more source

A new pentatomoid bug from the Ypresian of Patagonia, Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2016
A new pentatomoid heteropteran, Chinchekoala qunita gen. et sp. nov. is described from the lower Eocene of Laguna del Hunco, Patagonia, Argentina. The new genus is mainly characterised by cephalic characters such as the mandibular plates surpassing the
Julián F. Petrulevičius
doaj   +1 more source

BROMALITES FROM THE AMEGHINO (=NORDENSKJÖLD) FORMATION UPPER JURASSIC OF ANTARCTIC PENINSULA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2023
We present the study of the bromalites retrieved from the Upper Jurassic Ameghino (=Nordenskjöld) Formation at Longing Gap in the Antarctic Peninsula. The material was morphologically and chemically analyzed.
Mauricio A. Bigurrarena Ojeda   +3 more
doaj   +1 more source

La utilidad del patrimonio documental español para la reconstrucción de la historia del clima y su incidencia en la sociedad

open access: yesSantander, Estudios de Patrimonio, 2018
La reconstrucción del clima en el pasado se ha realizado recurriendo a gran cantidad de técnicas tales como el carbono 14, el análisis de sedimentos, la paleobotánica, la paleozoología...
Francisco Saulo RODRÍGUEZ LAJUSTICIA
doaj   +1 more source

Micromamiferos andinos holocenicos del sitio arqueologico Inca Cueva 5, Ju Juy, Argentina: tafonomia, zoogeografia y reconstruccion paleoambiental

open access: yesEstudios Geologicos, 2002
El sitio arqueológico Inca Cueva 5 se encuentra en la provincia de Jujuy, Argentina, en el borde oriental de la región de la Puna (23" 05' S - 65" 27' W; 3700 m s n m) y está fechado entre 2120 f 120 y 780 f 100 años radiocarbónicos AP. El estudio de una
P. Teta, P. E. Ortiz
doaj   +1 more source

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