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Dick Jefferies
Richard P.S. Jefferies was a paleontologist famous for developing the Calcichordate Theory of the origin of chordates, now widely discredited. Jefferies joined the British Museum in 1960, and was largely based there for the remainder of his career.
==Developing the Calcichordate Theory==
(詳細はcarpoid material in February 1964; some mitrates that had been brought into the museum from Shropshire, and by 1967 he published a paper entitled "Some chordates with Echinoderm affinities" with regards the mitrates, which are commonly viewed as apentameral echinoderms. Over the years, he continuously added to the theory, which was modified later such that each chordate evolved from its own mitrate and as such are paraphyletic.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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