The kingdom Monera traditionally included prokaryotic organisms, primarily bacteria and archaea. However, modern classifications have largely abandoned the concept of Monera in favor of two separate domains: Bacteria and Archaea. This reflects the significant genetic and biochemical differences between these groups.
Instead of the 35 phyla within Monera (which may have been a historical classification), here’s an overview of the major phyla within the two domains:
Domain Bacteria
- Proteobacteria
- Firmicutes
- Actinobacteria
- Bacteroidetes
- Cyanobacteria
- Chlamydiae
- Spirochaetes
- Aquificae
- Thermotogae
- Fusobacteria
- Planctomycetes
- Verrucomicrobia
- Nitrospirae
- Tenericutes
- Synergistetes
- Elusimicrobia
- Deinococcus-Thermus
- Acidobacteria
- Gemmatimonadetes
- Caldiserica
- Korarchaeota (may sometimes be placed in Archaea)
Domain Archaea
- Euryarchaeota
- Crenarchaeota
- Korarchaeota
- Nanoarchaeota
- Thaumarchaeota
- Aigarchaeota
- Asgard archaea (includes several newly identified phyla)
Additional Microbial Groups
While the primary focus is on Bacteria and Archaea, other prokaryotic-like microorganisms might be classified here but do not always fit neatly into the traditional kingdoms.
Please note that these classifications are constantly updated based on new genetic and molecular evidence. The total count of phyla might vary based on the specifics of the classification systems, new discoveries, and taxonomic revisions. If you are looking for a specific number (like 35), it may depend on historical classification systems or specific taxonomic schemes that have been proposed.
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