The taxonomic affinities of this groups are open to debate.

According to Wetmore, taxonomic affinities with these hypothetical extinct species are unknown.

The taxonomic affinities of Syrinx aruanus were not properly understood for a long time.

There are four recognized Chondrites ichnospecies, however, aberrant forms of unknown taxonomic affinity have been discovered.

A consideration of the combination of characters allows researchers to establish the taxonomic affinity.

Although it bears a remarkable resemblance to modern crustaceans, its taxonomic affinities remain unclear.

These are families in the Sordariomycetes whose taxonomic affinities are not sufficiently well known to be placed in any order.

Such birds may vary widely in morphology and taxonomic affinity.

Marsupiobothrium gobelinus is a tapeworm with an unknown taxonomic affinity.

The flora has taxonomic affinities with other subantarctic islands, especially those to the south of New Zealand.