NATURAL HISTORY · CATALOGUE RECORD
Big-headed Pantanal Swamp Turtle
Acanthochelys macrocephala (Rhodin, Mittermeier & Mcmorris, 1984)
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.
Identity & source status
- Scientific name
- Acanthochelys macrocephala (Rhodin, Mittermeier & Mcmorris, 1984)
- Name authority
- (Rhodin, Mittermeier & Mcmorris, 1984)
- Common name
- Big-headed Pantanal Swamp Turtle
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Testudines
- Family
- Chelidae
- Genus
- Acanthochelys
- 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
- suborderPleurodira Cope, 1864
- superfamilyCheloidea Gray, 1825
- familyChelidae
- genusAcanthochelys
- speciesAcanthochelys macrocephala (Rhodin, Mittermeier & Mcmorris, 1984)
Close classified relatives
These entries share the source’s genus, Acanthochelys. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Brazilian Radiolated Swamp TurtleAcanthochelys radiolata (Mikan, 1820) | ChelidaeChordata | Accepted speciesExtinction status not supplied |
| Chaco Side-necked TurtleAcanthochelys pallidipectoris (Freiberg, 1945) | ChelidaeChordata | 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 |
|---|---|
| Phrynops chacoensis Fritz & Pauler, 1992 Fritz & Pauler, 1992 | synonym |
| Platemys macrocephala Rhodin, Mittermeier & Mcmorris, 1984 Rhodin, Mittermeier & Mcmorris, 1984 | synonym |
| Peltocephalus dumeriliana | synonym |
| Acanthochelys chacoensis | 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=Acanthochelys&species=macrocephala 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:64CCD. Classification follows source parent identifiers. English common names may vary by region.