AcidicaldusAcidicaldus is a genus in the phylum Pseudomonadota, whose sole member is an acidophilic thermophile.EtymologyThe name Acidicaldus derives from: Neo-Latin acidum, an acid; Latin caldus, warm, hot; giving Acidicaldus, a thermophilic acid-requiring microorganism.SpeciesThe genus contains single species, namely ''A. organivorans''