𝗣𝗗𝗙 | On Jan 1, , Ishwar Singh and others published In , R. H. Whittaker proposed a five-kingdom classification in which kingdom. 2 Kingdom System of Classification: Plants & Animals. (Linnaeus, ~). 5 Kingdom System: Monera, Protista, Plantae, Fungi, Animalia. (Robert Whittaker. that Whittaker's five-kingdom system (Whittaker, ) is the most logical . have attempted to expand Whittaker's unified classification system so that. His later work on the five-kingdom system of classification is a particu- larly good example . Whittaker would be forced to place most bacteria in kingdom Fungi. R.H. Whittaker () proposed a Five Kingdom system of classification where are classified into Five Kingdoms namely Monera, Protista, Fungi, Plantae and. Whittaker's () new system of classification into five kingdoms (Monera, Protista, Animalia,. Plantae and Fungi) has made a fundamental con- tribution to the. Robert Whittaker's five-kingdom system was a standard feature of biology Consideration of the history of Whittaker's contributions to the classification of. BIOLOGICAL CLASSIFICATION. R.H. Whittaker () proposed a Five Kingdom Classification. The kingdoms defined by him were named Monera, Protista. Robert Whittaker's five-kingdom system was a standard feature of biology textbooks during the last Whittaker referred to as “broad classification”— classifying.