Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina)

Mostrar todas las versiones(3)

Fossil plants are described from the upper part of the Devonian Lolén Formation, Sierra de la Ventana, Buenos Aires Province, Argentina, in the area of Estancia Las Acacias. The sequence is composed mainly of dark grey shales, and fossils were found in a single horizon where thin interlayered beds o...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Cingolani, Carlos Alberto, Berry, C. M., Morel, Eduardo Manuel, Tomezzoli, Renata
Formato: Articulo
Lenguaje:Inglés
Publicado: 2002
Materias:
Geología
Devonian
Lycopsida
Argentina
Gondwana
Haskinsia
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/166601
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-166601
record_format dspace
spelling I19-R120-10915-1666012024-05-31T20:09:21Z http://sedici.unlp.edu.ar/handle/10915/166601 Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina) Cingolani, Carlos Alberto Berry, C. M. Morel, Eduardo Manuel Tomezzoli, Renata 2002 2024-05-31T13:56:36Z en Geología Devonian Lycopsida Argentina Gondwana Haskinsia Fossil plants are described from the upper part of the Devonian Lolén Formation, Sierra de la Ventana, Buenos Aires Province, Argentina, in the area of Estancia Las Acacias. The sequence is composed mainly of dark grey shales, and fossils were found in a single horizon where thin interlayered beds of fine reddish-brown micaceous sandstones appear where the environment of marine deposition became more shallow. The age of the Lolén Formation is presently established on the basis of brachiopods, these being characteristic elements of the Malvinokaffric realm from the Gondwana Lower Devonian (Emsian). The fossil plants are remarkably preserved given that they are in rocks that have undergone intense deformation. The plants are identified as Haplostigma sp. and Haskinsia cf. H. colophylla, and suggest a Middle Devonian age (Givetian) for the fossil-bearing levels. Haskinsia, identified on the basis of leaf morphology, is the first well-delimited Middle Devonian lycopsid genus described from Argentina, and the record from the most southerly palaeolatitude. During the Middle Devonian, Haskinsia was distributed in tropical, warm temperate and high southern latitude, ?cool temperate zones. Centro de Investigaciones Geológicas Museo de La Plata Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 641-649
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geología
Devonian
Lycopsida
Argentina
Gondwana
Haskinsia
spellingShingle Geología
Devonian
Lycopsida
Argentina
Gondwana
Haskinsia
Cingolani, Carlos Alberto
Berry, C. M.
Morel, Eduardo Manuel
Tomezzoli, Renata
Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina)
topic_facet Geología
Devonian
Lycopsida
Argentina
Gondwana
Haskinsia
description Fossil plants are described from the upper part of the Devonian Lolén Formation, Sierra de la Ventana, Buenos Aires Province, Argentina, in the area of Estancia Las Acacias. The sequence is composed mainly of dark grey shales, and fossils were found in a single horizon where thin interlayered beds of fine reddish-brown micaceous sandstones appear where the environment of marine deposition became more shallow. The age of the Lolén Formation is presently established on the basis of brachiopods, these being characteristic elements of the Malvinokaffric realm from the Gondwana Lower Devonian (Emsian). The fossil plants are remarkably preserved given that they are in rocks that have undergone intense deformation. The plants are identified as Haplostigma sp. and Haskinsia cf. H. colophylla, and suggest a Middle Devonian age (Givetian) for the fossil-bearing levels. Haskinsia, identified on the basis of leaf morphology, is the first well-delimited Middle Devonian lycopsid genus described from Argentina, and the record from the most southerly palaeolatitude. During the Middle Devonian, Haskinsia was distributed in tropical, warm temperate and high southern latitude, ?cool temperate zones.
format Articulo
Articulo
author Cingolani, Carlos Alberto
Berry, C. M.
Morel, Eduardo Manuel
Tomezzoli, Renata
author_facet Cingolani, Carlos Alberto
Berry, C. M.
Morel, Eduardo Manuel
Tomezzoli, Renata
author_sort Cingolani, Carlos Alberto
title Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina)
title_short Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina)
title_full Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina)
title_fullStr Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina)
title_full_unstemmed Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina)
title_sort middle devonian lycopsids from high southern palaeolatitudes of gondwana (argentina)
publishDate 2002
url http://sedici.unlp.edu.ar/handle/10915/166601
work_keys_str_mv AT cingolanicarlosalberto middledevonianlycopsidsfromhighsouthernpalaeolatitudesofgondwanaargentina
AT berrycm middledevonianlycopsidsfromhighsouthernpalaeolatitudesofgondwanaargentina
AT moreleduardomanuel middledevonianlycopsidsfromhighsouthernpalaeolatitudesofgondwanaargentina
AT tomezzolirenata middledevonianlycopsidsfromhighsouthernpalaeolatitudesofgondwanaargentina
_version_ 1807223331279077376

Ejemplares similares