The Lower Cretaceous bivalve <i>Maccoyella</i> in Patagonia and it's paleographic significance for continental drift

The subgenus Gryphaea (Mimetostreon) Bonarelli in Bonarelli and Nágera (1921) is considered to be a junior subjective synonym of Maccoyella Etheridge (1892). Maccoyella bonarellii (Leanza, 1963) is redescribed, and shown to be similar to Maccoyella incuruata Waterhouse 1959 from New Zealand (Aptian?...

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Detalles Bibliográficos
Autores principales: Waterhouse, J. B., Riccardi, Alberto Carlos
Formato: Articulo
Lenguaje:Español
Publicado: 1970
Materias:
Ciencias Naturales
Moluscos
Bivalvos
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/67757
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-67757
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
Moluscos
Bivalvos
spellingShingle Ciencias Naturales
Moluscos
Bivalvos
Waterhouse, J. B.
Riccardi, Alberto Carlos
The Lower Cretaceous bivalve <i>Maccoyella</i> in Patagonia and it's paleographic significance for continental drift
topic_facet Ciencias Naturales
Moluscos
Bivalvos
description The subgenus Gryphaea (Mimetostreon) Bonarelli in Bonarelli and Nágera (1921) is considered to be a junior subjective synonym of Maccoyella Etheridge (1892). Maccoyella bonarellii (Leanza, 1963) is redescribed, and shown to be similar to Maccoyella incuruata Waterhouse 1959 from New Zealand (Aptian? or Albian?) and M. rockwoodensis (Etheridge) from Australia (Albian). The age of the Patagonian species is probably Aptian. This genus is important paleogeographically. By restoring the three regions with Maccoyella to their probable lower Cretaceous positions, based on paleomagnetic, faunal and structural analyses, it is shown that Maccoyella inhabited a restricted paleolatitudinal belt, close to 50° S to 60° S. It is now found over a much wider spread of latitudes, ranging from nearly 10° S to 50" S.
format Articulo
Articulo
author Waterhouse, J. B.
Riccardi, Alberto Carlos
author_facet Waterhouse, J. B.
Riccardi, Alberto Carlos
author_sort Waterhouse, J. B.
title The Lower Cretaceous bivalve <i>Maccoyella</i> in Patagonia and it's paleographic significance for continental drift
title_short The Lower Cretaceous bivalve <i>Maccoyella</i> in Patagonia and it's paleographic significance for continental drift
title_full The Lower Cretaceous bivalve <i>Maccoyella</i> in Patagonia and it's paleographic significance for continental drift
title_fullStr The Lower Cretaceous bivalve <i>Maccoyella</i> in Patagonia and it's paleographic significance for continental drift
title_full_unstemmed The Lower Cretaceous bivalve <i>Maccoyella</i> in Patagonia and it's paleographic significance for continental drift
title_sort lower cretaceous bivalve <i>maccoyella</i> in patagonia and it's paleographic significance for continental drift
publishDate 1970
url http://sedici.unlp.edu.ar/handle/10915/67757
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