Results 261 to 270 of about 24,714 (307)
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1994
Abstract The inaccuracy of palaeomagnetic data for the Cambrian period, which is dated about half a billion years ago, means that the knowledge of palaeo biogeography, palaeoclimatology, and geotectonics must be applied to its plate reconstruction. Scientists (Zoninshain et al. 1977; Ziegler et al. 1979; Scotese et al. 1979, 1990; Palmer
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Abstract The inaccuracy of palaeomagnetic data for the Cambrian period, which is dated about half a billion years ago, means that the knowledge of palaeo biogeography, palaeoclimatology, and geotectonics must be applied to its plate reconstruction. Scientists (Zoninshain et al. 1977; Ziegler et al. 1979; Scotese et al. 1979, 1990; Palmer
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1996
Within the Cambrian about six globally traceable extinction events are recognised, of which those across the Mid Botomian through to Toyonian/Amgan are of highest order. All events are associated with facies changes, mostly combined with stepwise extinctions that preferentially affected nearshore and endemic taxa.
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Within the Cambrian about six globally traceable extinction events are recognised, of which those across the Mid Botomian through to Toyonian/Amgan are of highest order. All events are associated with facies changes, mostly combined with stepwise extinctions that preferentially affected nearshore and endemic taxa.
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Journal of the Geological Society of Australia, 1963
Abstract The Cambrian System by definition must include the rocks (in the Caledonian geosyncline of Wales) to which this name was first applied. Its type sequence, however, does not define its boundaries. Evidence on the base of the Cambrian can be found in the Caledonian sedimentary areas of Scandinavia and in the adjoining Baltic region where the ...
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Abstract The Cambrian System by definition must include the rocks (in the Caledonian geosyncline of Wales) to which this name was first applied. Its type sequence, however, does not define its boundaries. Evidence on the base of the Cambrian can be found in the Caledonian sedimentary areas of Scandinavia and in the adjoining Baltic region where the ...
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Abstract The order in which the distinctive body plans of different kinds of animal evolved is still not clear. There were fundamental themes, however, which often recur. Some are about moving about, especially segmentation, but most of them are about eating: tentacles, jaws and, above all, the mouth.
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Cambrian integrative stratigraphy and timescale of China
Science China Earth Sciences, 2018Maoyan Zhu, Aihua Yang, Fangchen Zhao
exaly
Priroda (Zagreb), 2013
Vrijeme i uvjeti za kambrijsku eksploziju. Što je prethodilo tom događaju i koji su mogući uzroci.
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Vrijeme i uvjeti za kambrijsku eksploziju. Što je prethodilo tom događaju i koji su mogući uzroci.
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