Picrophilaceae is a family of microbes within the order Thermoplasmatales.
The cells are round in shape, thermophilic, heterotrophic, and obligately aerobic. This species is hyperacidophilic, with an optimal pH of 0.7. Its optimal temperature is 60 ðC. It has been isolated from fumaroles, acidic sediments, dry solfataric fields, and hot springs in Hokkaidà Â, Japan.
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI).