Changes

==Biostratigraphic correlation==

==Biostratigraphic correlation==

Because climate is a global phenomenon, the various lithofacies and [[Fossil assemblage|biofacies]] that reflect climate in the time interval of interest must be correlated accurately. Climates may change abruptly, and [[Biostratigraphic correlation and age determination|biostratigraphy]] provides the only practical means to demonstrate the contemporaneity, or lack of it, of contrasting climates.

Because climate is a global phenomenon, the various [[lithofacies]] and [[Fossil assemblage|biofacies]] that reflect climate in the time interval of interest must be correlated accurately. Climates may change abruptly, and [[Biostratigraphic correlation and age determination|biostratigraphy]] provides the only practical means to demonstrate the contemporaneity, or lack of it, of contrasting climates.

==Adaptive morphology==

==Adaptive morphology==