The concept of the "kind" originates from a
literal reading of Genesis 1:12–24: There is some uncertainty about what exactly the Bible means when it talks of "kinds". Creationist Brian Nelson claimed "While the Bible allows that new varieties may have arisen since the creative days, it denies that any new
species have arisen." However, Russell Mixter, another creationist writer, said that "One should not insist that "kind" means species. The word "kind" as used in the Bible may apply to any animal which may be distinguished in any way from another, or it may be applied to a large group of species distinguishable from another group[...] there is plenty of room for differences of opinion on what are the kinds of Genesis."
Frank Lewis Marsh coined the term
baramin in his book
Fundamental Biology (1941) and expanded on the concept in
Evolution, Creation, and Science (), in which he stated that the ability to hybridize and create viable offspring was a sufficient condition for being members of the same baramin. However, he said that it was not a necessary condition, acknowledging that observed speciation events among
Drosophila fruitflies had been shown to cut off hybridization. ==Baraminology==