Phylogenetic identities, based on matches to Pfam entries for 24 ribosomal proteins (detailed in Table S1). Shown are the percentages of the total of identifiable hits (1 original, n = 107; 1 amplified, n = 79; 16 mbsf, n = 65; 32 mbsf, n = 97; 50 mbsf, n = 130).