systematist vs taxonomer

systematist and taxonomer both are nouns.

Word	Noun	Adjective	Verb	Adverb
systematist	Yes	No	No	No
taxonomer	Yes	No	No	No

As nouns, systematist and taxonomer are synonyms defined as:

systematist and taxonomer: a biologist who specializes in the classification of organisms into groups on the basis of their structure and origin and behavior

Other synonyms of systematist include taxonomist.

systematist (noun)	taxonomer (noun)
a biologist who specializes in the classification of organisms into groups on the basis of their structure and origin and behavior	a biologist who specializes in the classification of organisms into groups on the basis of their structure and origin and behavior
an organizer who puts things in order