NATURAL HISTORY · CATALOGUE RECORD
Batagur; (Northern) River Terrapin
Batagur baska (Gray, 1831)
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
The northern river terrapin (Batagur baska) is a species of riverine turtle native to Southeast Asia. It has been classified as Critically Endangered on the IUCN Red List and considered extinct in much of its former range; as of 2018, the population in the wild was estimated at 100 mature individuals.
Wikipedia contributors, Northern river terrapin; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T13:11:17.534804+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Batagur baska (Gray, 1831)
- Name authority
- (Gray, 1831)
- Common name
- Batagur; (Northern) River Terrapin
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Testudines
- Family
- Geoemydidae
- Genus
- Batagur
- Extinction status
- Not supplied by this source
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classReptilia Laurenti, 1768
- orderTestudines Batsch, 1788
- suborderCryptodira
- superfamilyTestudinoidea
- familyGeoemydidae
- genusBatagur
- speciesBatagur baska (Gray, 1831)
Close classified relatives
These entries share the source’s genus, Batagur. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| BiukuBatagur borneoensis (Schlegel & Müller, 1844) | GeoemydidaeChordata | Accepted speciesExtinction status not supplied |
| Painted Roofed TurtleBatagur kachuga (Gray, 1831) | GeoemydidaeChordata | Accepted speciesExtinction status not supplied |
| Burmese Roofed TurtleBatagur trivittata (Duméril & Bibron, 1835) | GeoemydidaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Emys tetraonyx Temminck & Schlegel, 1833 Temminck & Schlegel, 1833 | synonym |
| Tetraonyx lessonii Duméril & Bibron, 1835 Duméril & Bibron, 1835 | synonym |
| Testudo baska Gray, 1831 Gray, 1831 | synonym |
| Emys batagur Gray, 1831 Gray, 1831 | synonym |
| Trionyx cuvieri Gray, 1831 Gray, 1831 | synonym |
| Tetronyx longicollis Lesson, 1832 Lesson, 1832 | synonym |
| Batagur baska ranongensis Nutaphand, 1979 Nutaphand, 1979 | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://reptile-database.reptarium.cz/species?genus=Batagur&species=baska Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:KVXD. Classification follows source parent identifiers. English common names may vary by region.