Ostrácodos (Crustacea) de la formación Allen (Cretácico tardío), Cuenca Neuquina, Argentina
Ostracodes (Crustacea) from the Allen formation (late cretaceous), Neuquén Basin, Argentina
| dc.creator | Carignano, Ana Paula | |
| dc.creator | Varela, Julio Adrián | |
| dc.date | 2011 | |
| dc.date | 2019-10-25T12:40:52Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/84032 | |
| dc.identifier | issn:1519-7530 | |
| dc.description | A new microfossil association was found in the Allen Formation at Loma Puntuda (Neuquén Basin, Río Negro Province, Argentina). It is represented by scarce charophyta and numerous carapaces and valves of ostracods from the families Ilyocyprididae (such as <i>Ilyocypris riograndensis</i> and several species of <i>Neuquenocypris</i>) and Limnocytheridae (with the species <i>Wolburgiopsis neocretacea</i> and <i>Vecticypris</i> sp.). Molluscs, fragments of dinosaur eggshells and a plesiosaur remains had been registered previously in the same profile. This kind of association of non marine with a few marine fauna seems to indicate that the Allen Formation at Loma Puntuda was deposited in a shallow, fresh to oligohaline water body, near the coast. | |
| dc.description | Dá-se a conhecer uma nova associação de microfósseis para a Formação Allen na localidade de Loma Puntuda (bacia de Neuquén, província de Rio Negro, Argentina). A mesma encontra-se representada por escassas carófitas e numerosas valvas e carapaças de ostracodes pertencentes às famílias Ilyocyprididae (como <i>Ilyocypris riograndensis</i> e várias espécies de <i>Neuquenocypris</i>) e Limnocytheridae (com as espécies <i>Wolburgiopsis neocretacea</i> e <i>Vecticypris</i> sp.). No mesmo perfil foram anteriormente registrados moluscos, fragmentos de cascas de ovo de dinossauros e restos de plesiossauro. Esta mistura de fauna continental com alguns elementos marinhos indica que a Formação Allen, em Loma Puntuda, foi depositada num corpo de água doce a oligohalino, pouco profundo, muito próximo à costa. | |
| dc.description | Facultad de Ciencias Naturales y Museo | |
| dc.format | application/pdf | |
| dc.format | 169-178 | |
| dc.language | es | |
| dc.rights | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.rights | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
| dc.subject | Ciencias Naturales | |
| dc.subject | Ilyocyprididae | |
| dc.subject | Late campanian-early Maastrichtian | |
| dc.subject | Limnocytheridae | |
| dc.subject | Neuquén Basin | |
| dc.title | Ostrácodos (Crustacea) de la formación Allen (Cretácico tardío), Cuenca Neuquina, Argentina | |
| dc.title | Ostracodes (Crustacea) from the Allen formation (late cretaceous), Neuquén Basin, Argentina | |
| dc.type | Articulo | |
| dc.type | Articulo |