Biosystematics is in great flux today because of the plethora of genetic research which continually redefines how we perceive organism relationships. Despite the large amount of data being published, the challenge is having enough knowledge about genetics to draw conclusions regarding the biological history of organisms and their taxonomy. Based on the analyses of extant organism molecular data, taxonomy, and hybridization capability a tentative estimate of one tuatara, two amphisbaena, and 41 snake kinds is proposed as being on the Ark.