Question: Who was an American evolutionary theorist and biologist who vocally supported the usage of the term "undulipodium"?

<P0-S0> Adaptation and Natural Selection: A Critique of Some Current Evolutionary Thought is a 1966 book by the American evolutionary biologist George C. Williams. <P0-S1>  Williams, in what is now considered a classic by evolutionary biologists, outlines a gene-centered view of evolution, disputes notions of evolutionary progress, and criticizes contemporary models of group selection, including the theories of Alfred Emerson, A. H. Sturtevant, and to a smaller extent, the work of V. C. Wynne-Edwards. <P0-S2>  The book takes its title from a lecture by George Gaylord Simpson in January 1947 at the Princeton University. <P0-S3>  Aspects of Williams' book were popularised by Richard Dawkins in his 1976 book "The Selfish Gene". <SEP> <P1-S0> Lynn Margulis (born Lynn Petra Alexander; March 5, 1938 – November 22, 2011) was an American evolutionary theorist and biologist, science author, educator, and popularizer, and was the primary modern proponent for the significance of symbiosis in evolution. <P1-S1>  Historian Jan Sapp has said that "Lynn Margulis's name is as synonymous with symbiosis as Charles Darwin's is with evolution." <P1-S2>  In particular, Margulis transformed and fundamentally framed current understanding of the evolution of cells with nuclei – an event Ernst Mayr called "perhaps the most important and dramatic event in the history of life" – by proposing it to have been the result of symbiotic mergers of bacteria. <P1-S3>  Margulis was also the co-developer of the Gaia hypothesis with the British chemist James Lovelock, proposing that the Earth functions as a single self-regulating system, and was the principal defender and promulgator of the five kingdom classification of Robert Whittaker. <SEP> <P2-S0> Margaret Gale Kidwell (born August 17, 1933) is a British American evolutionary biologist and Regents’ Professor Emerita at the University of Arizona, Tucson. <P2-S1>  She grew up on a farm in the English Midlands during World War II. <P2-S2>  After graduating from the University of Nottingham in 1953, she worked in the British Civil Service as an Agricultural Advisory Officer from 1955-1960. <P2-S3>  She moved to the USA in 1960 under the auspices of a Kellogg Foundation Fellowship to study Genetics and Statistics at Iowa State University. <P2-S4>  She married quantitative geneticist James F. Kidwell in 1961, obtained her MS degree in 1962 and moved with her husband to Brown University in 1963. <P2-S5>  She received her PhD from Brown University in 1973 under the guidance of Masatoshi Nei. <P2-S6>  From 1973 to 1984 she pursued independent research into a number of anomalous genetic phenomena in "Drosophila" which later lead to collaborative studies resulting in the discovery of hybrid dysgenesis and the isolation of transposable P elements. <P2-S7>  After appointment as Professor of Biology at Brown University in 1984 she moved to the University of Arizona in 1985 as Professor of Ecology and Evolutionary Biology. <P2-S8>  Additional positions included Chair of the Interdisciplinary Genetics Program from 1988-1991 and Head of the Department of Ecology and Evolutionary Biology from 1992-1997. <P2-S9>  Research at the University of Arizona has increasingly focused on the evolutionary significance of transposable genetic elements. <P2-S10>  In 1996, she was the first woman from Arizona to be elected to the United States National Academy of Sciences. <SEP> <P3-S0> An undulipodium (a Greek word meaning "swinging foot") or a 9+2 organelle is a motile filamentous extracellular projection of eukaryotic cells. <P3-S1>  It is basically synonymous to flagella and cilia of the prokaryotic cells. <P3-S2>  In fact the name was coined to differentiate from the analogous structures present in prokaryotic cells. <P3-S3>  It is structurally a complex of microtubules along with motor proteins. <P3-S4>  The usage of the term is most vocally supported by Lynn Margulis, especially in support of her endosymbiotic theory. <P3-S5>  The eukaryotic cilia are structurally identical to eukaryotic flagella, although distinctions are sometimes made according to function and/or length.