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Decline of the Burgess Shale fauna: ecologic or taphonomic restriction?
Ist Teil von
Lethaia, 1992-07, Vol.25 (3), p.225-229
Ort / Verlag
Oxford, UK: Scandinavian University Press
Erscheinungsjahr
1992
Link zum Volltext
Beschreibungen/Notizen
An important alternative has not been tested in the debate over the origin, significance, and decline of Burgess Shale taxa: their observed stratigraphic distribution could be an artifact of increasing bioturbation. Based on information currently available, comparisons of the observed and expected stratigraphic distributions of Burgess Shale‐type faunas falsify bioturbation as the exclusive cause. Ecological factors and/or taphonomic controls other than bioturbation were also responsible for the post‐Cambrian decline of Burgess Shale‐type faunas.