NATURAL HISTORY · CATALOGUE RECORD
Río Fuerte Beaded Lizard
Heloderma exasperatum Bogert & Martin Del Campo, 1956
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 Rio Fuerte beaded lizard (Heloderma exasperatum) is a venomous species of beaded lizard in the family Helodermatidae. It is found in the tropical forests and shrublands of western Mexico, specifically around the Rio Fuerte and Rio Mayo basins. It is often found in or near abandoned mammal burrows and sources of water.
Wikipedia contributors, Heloderma exasperatum; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T12:42:09.187740+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Heloderma exasperatum Bogert & Martin Del Campo, 1956
- Name authority
- Bogert & Martin Del Campo, 1956
- Common name
- Río Fuerte Beaded Lizard
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Squamata
- Family
- Helodermatidae
- Genus
- Heloderma
- 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
- orderSquamata Oppel, 1811
- suborderAutarchoglossa
- familyHelodermatidae
- genusHeloderma
- speciesHeloderma exasperatum Bogert & Martin Del Campo, 1956
Close classified relatives
These entries share the source’s genus, Heloderma. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Banded Gila Monster [cinctum]Heloderma suspectum Cope, 1869 | HelodermatidaeChordata | Accepted speciesExtinction status not supplied |
| Guatemala Beaded LizardHeloderma charlesbogerti Campbell & Vannini, 1988 | HelodermatidaeChordata | Accepted speciesExtinction status not supplied |
| Mexican Beaded LizardHeloderma horridum (Wiegmann, 1829) | HelodermatidaeChordata | Accepted speciesExtinction status not supplied |
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=Heloderma&species=exasperatum 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:88BZC. Classification follows source parent identifiers. English common names may vary by region.