unclassified taxonomy rank

Question

[mrashad]

I have data of 16srRNA and taxonomy for the bacteria of this data but I found among this taxonomy something called: genus_unclassified_Porphyromonadaceae

This means that the taxonomy identified till family Porphyromonadaceae but the genus not identified therefore species not identified [ f_Porphyromonadaceae g__ s__ ] ??? or what this means?

[mrashad]

I have two other questions related to this question: 1- If I found : genus_unclassified_Clostridiales_Incertae.Sedis.XIII, so the taxonomy identified till order Clostridiales or identified till family Clostridiales_Incertae.Sedis.XIII ? 2- and if I found : genus_Erysipelotrichaceae_incertae_sedis this taxonomy like genus_unclassified_Erysipelotrichaceae so the taxonomy identified till family Erysipelotrichaceae or something else ?

I think if I know the meaning of incertae_sedis, 2 questions will be answered easy but when I searched for its meaning I found that it is open nomenclature used for a taxonomic group where its broader relationships are unknown or undefined so it is like unclassified or not.

Thanks in advance

[h.mon]

Incertae sedis indicates the rank associated to the term is of unknown or uncertain classification.

So, for question 1, Clostridiales_Incertae.Sedis.XIII is a family (from the Clostridiales order) of unknown or uncertain classification, for question 2, genus_Erysipelotrichaceae_incertae_sedis is a genus (from the Erysipelotrichaceae family) of unknown or uncertain classification.

Answer 1

[Mensur Dlakic]

Your interpretation is correct.

[mrashad]

Thanks a lot for reply