Little else can be said with confidence about their phylogenetic position.

Its phylogenetic position within the subfamily has not been resolved.

The exact phylogenetic position of these families within Mammaliaformes is uncertain.

The various avicephalan groups have been difficult to pin down in terms of their phylogenetic position.

Sampling in the 2009 study was not sufficient to determine the phylogenetic position of these genera.

Any feature may be relevant to a fossil's phylogenetic position.

On the phylogenetic position of Myzostomida: can 77 genes get it wrong?

There is some uncertainty regarding the phylogenetic position of the solenogasters.

The family occupies an isolated phylogenetic position within the Dothideomycetes.

Drepanosaurs have been difficult to pin down in terms of their phylogenetic position.