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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Princip zamrzlé evoluce a její projev ve fosilním záznamu: brachiopodi rodu Aegiromena Havlíček, 1961, ve svrchním ordoviku ČR
 Mikuláš, Radek
The presented study is in a good agreement with the idea of a frozen evolution of the genus Aegiromena, or, more precisely, it illustrates a gradual disappearance of the ability to respond to the environmental change by a selectively advantageous change in its morphology. After its freezing, further evolution of Aegiromena brings very little news; only subtle changes in the size of adults, subtle and variable changes in the width/length ratio, and a changing variability of muscular imprints can be noted.
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