Caldithrix

{{Short description|Genus of bacteria}}

{{Automatic taxobox

| image =

| image_caption =

| greatgreatgrandparent_authority = Kublanov et al. 2021{{cite journal | vauthors = Oren A, Garrity GM | title = Valid publication of the names of forty-two phyla of prokaryotes | journal = Int J Syst Evol Microbiol | year = 2021 | volume = 71 | issue = 10 | pages = 5056 | doi = 10.1099/ijsem.0.005056 | pmid = 34694987 | s2cid = 239887308 | url = https://www.microbiologyresearch.org/pubmed/content/journal/ijsem/10.1099/ijsem.0.005056| doi-access = free }}

| greatgrandparent_authority = Kublanov et al. 2022

| grandparent_authority = Kublanov et al. 2020{{cite journal | vauthors = Kublanov IV, Sigalova OM, Gavrilov SN, Lebedinsky AV, Rinke C, Kovaleva O, Chernyh NA, Ivanova N, Daum C, Reddy TB, Klenk HP, Spring S, Göker M, Reva ON, Miroschnichenko ML, Kyrpides NC, Woyke T, Gelfand MS, Bonch-Osmolovskaya EA | title = Genomic Analysis of Caldithrix abyssi, the Thermophilic Anaerobic Bacterium of the Novel Bacterial Phylum Calditrichaeota | journal = Front Microbiol | year = 2017 | volume = 8 | pages = 195 | doi = 10.3389/fmicb.2017.00195 | pmid = 28265262 | pmc = 5317091| doi-access = free }}{{cite journal | vauthors = Oren A, Garrity GM | title = Validation list no. 193. List of new names and new combinations previously effectively, but not validly, published | journal = Int J Syst Evol Microbiol | year = 2020 | volume = 70 | issue = 5 | pages = 2960–2966 | doi = 10.1099/ijsem.0.004156| pmid = 32471528 | s2cid = 219103834 | doi-access = free }}

| parent_authority = Kublanov et al. 2020

| taxon = Caldithrix

| authority = Miroshnichenko et al. 2003{{cite journal | vauthors = Miroshnichenko ML, Kostrikina NA, Chernyh NA, Pimenov NV, Tourova TP, Antipov AN, Spring S, Stackebrandt E, ((Bonch-Osmolovskaya EA.)) | title = Caldithrix abyssi gen. nov., sp. nov., a nitrate-reducing, thermophilic, anaerobic bacterium isolated from a Mid-Atlantic Ridge hydrothermal vent, represents a novel bacterial lineage | journal = Int J Syst Evol Microbiol | year = 2003 | volume = 53 | issue = Pt 1 | pages = 323–329 | doi = 10.1099/ijs.0.02390-0 | pmid = 12656191| doi-access = free }}

| type_species = Caldithrix abyssi

| type_species_authority = Miroshnichenko et al. 2003

| subdivision_ranks = Species

| subdivision_ref = {{cite web|last1=Parte|first1=A.C.|title=Caldithrix|website=LPSN|url=https://lpsn.dsmz.de/genus/caldithrix}}

| subdivision =

• C. abyssi
• C. palaeochoryensis

| synonyms =

• Calditrichota:
• "Calditrichaeota" Kublanov et al. 2017
• "Calditrichota" Youssef et al. 2019
• "Calditrichae":
• "Calditrichia" Cavalier-Smith 2020

}}

Caldithrix is a genus of thermophilic and anaerobic bacteria, currently assigned to its own phylum.