(paleontology) A taxon that disappears from the fossil record, suggesting extinction, only to reappear later.

(paleontology) A taxon that falsely appears to persist until, or reappear at, a time in the fossil record later than the taxon's actual point of extinction, due to fossils of organisms belonging to the taxon having been eroded from their original strata and redeposited in the source sediments for younger strata.

The science or the technique used to make a classification. / A classification; especially, a classification in a hierarchical system.

Of, or relating to taxonomy.

(taxonomy) A coherent system of taxonomic judgements on circumscription and placement of the considered taxa. A taxonomic system is restricted to a large but limited part of the living world.

The science of finding, describing, classifying and naming living things.

plural of taxonomy

(taxonomy) Someone whose profession is taxonomy, or who performs taxonomy at a professional level.

(biology) An increase in the number of species that is not caused by new discoveries, but by changes in the classification of existing organisms.

Of or pertaining to taxonomy.