1 Phylum Euryarchaeota: This is the most studied division of archaea, and mostly includes methanogens and halophiles. 2  Phylum Crenarchaeota: It includes thermophiles, hyperthermophiles and thermoacidophiles. 3  These archebacteria are mostly found in the marine environment.nder the kingdom Archaea, archebacteria are classified into the following phyla: Methanogens harvest energy by converting H2 and CO2 into methane gas. They are found in the intestinal tracts of humans and some animals such as cows, and in marshes.
-oses. Suffix meaning a process, condition, or state, usually abnormal or diseased; production or increase, physiologic or pathologic; an invasion or infestation; in the latter sense, it is similar to and often interchangeable with Greek-iasis, as seen in trichinosis, trichiniasis. [G.].
2. (Pathology) indicating a diseased condition: tuberculosis. 3. indicating the formation or development of something: fibrosis. -osis. a suffix occurring in nouns that denote actions, conditions, or states (hypnosis; osmosis), esp. disorders or abnormal states (neurofibromatosis; tuberculosis). Compare -otic. [on the model of Greek borrowings ending in Greek -Åsis, derived orig. from verbs ending in the formative -o- (-Å- in n.