3 research outputs found
Tables 4-12
Localities and basic statistics for the described Associations (number of individual for each taxon estimated by methods outlined in the text
Appendix-dryad
Details of the sampled Fossil localities and the Palaeobiogeographical analysi
Chapter 19 Global Cambrian trilobite palaeobiogeography assessed using parsimony analysis of endemicity
<p>Palaeobiogeographical data on Cambrian trilobites obtained during the twentieth century are combined in this paper to evaluate
palaeoceanographic links through <em>c.</em> 30 myr, once these arthropods biomineralized. Worldwide major tectonostratigraphic units are characterized at series intervals
of Cambrian time and datasets of trilobite genera (629 for Cambrian Series 2, 965 for Cambrian Series 3, and 866 for the Furongian
Series) are analysed using parsimony analysis of endemicity. Special attention is given to the biogeographical observations
made in microcontinents and exotic terranes. The same is done for platform-basinal transects of well-known continental margins.
The parsimony analysis of endemicity analysis resulted in distinct palaeogeographical area groupings among the tectonostratigraphic
units. With these groupings, several palaeobiogeographical units are distinguished, which do not necessarily fit the previously
proposed biogeographical realms and provinces. Their development and spatial distributions are broadly controlled by Cambrian
palaeoclimates, palaeogeographical conditions (e.g. carbonate productivity and anoxic conditions) and ocean current circulation.
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