Early Ordovician conodont and trilobite communities of Spitsbergen: influence on biogeography
作者:
RichardA. Fortey,
ChristopherR. Barnes,
期刊:
Alcheringa: An Australasian Journal of Palaeontology
(Taylor Available online 1977)
卷期:
Volume 1,
issue 3
页码: 297-309
ISSN:0311-5518
年代: 1977
DOI:10.1080/03115517708527766
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Comparisons of conodont and trilobite communities from the Arenig-Llanvirn of northern Spitsbergen show that both groups were influenced by the same environmental factors, related to a shallow to deep water profile at the western edge of the proto-Atlantic Ocean (Iapetus). The majority of both conodonts and trilobites had benthic or nektobenthic habits; a few genera of both groups were pelagic. Temperature was a major influence on the distribution of conodonts; similar genera could occur on both sides of ancient oceans (e.g. Iapetus) given the same temperature regime.
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