Zoogenesis was an evolutionary theory of Austin Hobart Clark (1880-1954) an American zoologist. The theory postulated that each of the "major types of life forms on earth evolved separately and independently from all the others".
Clark discussed the theory in his book The New Evolution: Zoogenesis (1930). Creationists have quote mined the book and mispresented Clark in many cases. Clark did not deny common descent or evolution. According to Ronald Numbers even though Clark rejected species belonging to branches of a single Phylogenetic tree he still accepted evolution and rejected creationism.