Do You inform me what is the evidences of Wright's rule/Shifting balance theory.
Prof. Dr Md. Abdul Ahad,Email:[email protected]
Fossil records are the evidence document of Wright's theory of macro evolution
Wright declared that: i) the more indifferent ones drift about through a wide range of frequencies in the course of geologic time while those under more severe selection oscillate about positions close to complete fixation. ii) “The morphological differences between many higher taxa, as seen in the fossil record, are such that they could only have arisen abruptly. This issue has recently been raised again by Gould and Eldredge”; Studies of geographic distribution in conjunction with paleontological data provide numerous examples from the continents (Wright, 1982)”.
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