Methylococcaceae Dataset NCBI Taxonomy Rank FAMILY Classification kingdom Pseudomonadati phylum Pseudomonadota class Gammaproteobacteria order Methylococcales family Methylococcaceae Name Synonyms "Methylomonadaceae" Leadbetter 1974 Methylococcaceae Whittenbury and Krieg 1984 emend. Bowman et al. 1993 type I methanotrophs Homonyms Methylococcaceae Methylococcaceae Whittenbury and Krieg 1984 emend. Bowman et al. 1993