Michel Laurin, one of the foremost advocates of phylogenetic nomenclature, considers that the concept of a chemical element has been stable ever since Dmitri Mendeleev put forth the periodic table in 1869.
The concept of a chemical element has been stable. This is what Michel Laurin considers. Dmitri Mendeleev put forth the periodic table in 1869. Michel Laurin is one of the foremost advocates of phylogenetic nomenclature.