Phylogenetic tree highlighting the position of H. maritima relative to the other type strains within the family Desulfurellaceae. The tree was inferred from 1,526 aligned characters [5,6] of the 16S rRNA gene sequence under the maximum likelihood criterion  and rooted in accordance to the current taxonomy. The branches are scaled in terms of the expected number of substitutions per site. Numbers next to bifurcations are support values from 700 bootstrap replicates  if larger than 60%. Lineages with type strain genome sequencing projects registered in GOLD  are shown with an asterisk, those also listed as ‘Complete and Published’ with two asterisks.