The distribution of the Mesozoic ostracod genusProcytheruraWhatley: palaeogeographical implications with special reference to Argentina
作者:
SaraC. Ballent,
Robin Whatley,
期刊:
Alcheringa: An Australasian Journal of Palaeontology
(Taylor Available online 2000)
卷期:
Volume 24,
issue 3
页码: 229-242
ISSN:0311-5518
年代: 2000
DOI:10.1080/03115510008619209
出版商: Taylor & Francis Group
关键词: Procytherura;Ostracoda;systematics;palaeogeography;Jurassic-Lower Cretaceous;Argentina
数据来源: Taylor
摘要:
A review is undertaken of the nine species ofProcytheruraknown to occur in Argentina and a new species,Procytherura serangodessp. nov. is described. The global distribution of the genus indicates that it was more or less equally diverse and widely distributed in both hemispheres during most of the Lower and Middle Jurassic, but that in the Upper Jurassic and in the Lower Cretaceous, it became progressively restricted to the Southern Hemisphere. The widespread distribution of several Jurassic species ofProcytherura, which occur in both Great Britain and Northwest Europe and in Argentina, is shown to be related to the availability of important migration routes, including the Tethys and the Hispanic Corridor. In the Lower Cretaceous, the very widespread distribution ofProcytherurain the Southern Hemisphere, is used to support the existence of important routes along the eastern and western seaboards of Africa, the latter associated with the opening of the South Atlantic.
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