Linnaeus's significant development to modern taxonomy is

Binomial nomenclature

Explanation:

Carl Linnaeus was a Swedish botanist, zoologist and physician. One of his most important contributions was to the field of taxonomy, as he formalized binomial nomenclature, the system that modern taxonomy employs to name organisms. At the time of his death, Linnaeus was one of the most admired and celebrated scientists in Europe.

i dont no the claim so it's hard to answer but i think he would go to the people to decide. : ) ; )