The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 498
... fossil content . The basis for assuming that similar fossils indicate contemporary formation is called faunal succession . Unlike the principles of superposition and crosscutting , faunal succession is a secondary principle . That is ...
... fossil content . The basis for assuming that similar fossils indicate contemporary formation is called faunal succession . Unlike the principles of superposition and crosscutting , faunal succession is a secondary principle . That is ...
Page 499
... fossil assemblage from this ideal . Nevertheless , there is no greater testimony to the validity of fossil - based stratigraphic geology than that provided by absolute dates made possible through radioactive measurements . Almost ...
... fossil assemblage from this ideal . Nevertheless , there is no greater testimony to the validity of fossil - based stratigraphic geology than that provided by absolute dates made possible through radioactive measurements . Almost ...
Page 549
... fossil evidence strongly supports the derivation of the Brachyura from the Glypheoida , a superfamily of fossil palinurans . In 1969 M.F. Glaessner reviewed earlier classifications and the phylogeny of decapods and proposed the ...
... fossil evidence strongly supports the derivation of the Brachyura from the Glypheoida , a superfamily of fossil palinurans . In 1969 M.F. Glaessner reviewed earlier classifications and the phylogeny of decapods and proposed the ...
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