Aestipascuomyces Agriosomyces Aklioshbomyces Anaeromyces Buwchfawromyces Caecomyces Capellomyces Cyllamyces Feramyces Ghazallomyces Liebetanzomyces Joblinomyces Khoyollomyces Neocallimastix Oontomyces Orpinomyces Paucimyces Pecoramyces Piromyces Tahromyces Neocallimastigomycota is a phylum containing anaerobic fungi, which are symbionts found in the digestive tracts of larger herbivores.

Their zoospores had been observed much earlier but were believed to be flagellate protists, but Orpin demonstrated that they possessed a chitin cell wall.

These zoospores bear a kinetosome but lack the nonflagellated centriole known in most chytrids,[2] and have been known to utilize horizontal gene transfer in their development of xylanase (from bacteria) and other glucanases.

They are present in large numbers in the digestive tracts of animals which are fed on high fibre diets.

exhibited the capacity of xylanase, CMCase, lichenase, amylase, β-xylosidase, β-glucosidase, α-Larabinofuranosidase and minor amounts of β-cellobiosidase production by utilizing avicel as the sole energy source.