NATURAL HISTORY · CATALOGUE RECORD
Lesser Pygmy Flying Squirrel
Petaurillus emiliae Thomas, 1908
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 lesser pygmy flying squirrel (Petaurillus emiliae) is a species of rodent in the family Sciuridae. It is endemic to Borneo where it is known from the type specimen collected in 1901 in Sarawak (Malaysia) and another specimen collected in 2013 in Labanan Research Forest in East Kalimantan (Indonesia).
The lesser pygmy flying squirrel is arboreal and probably prefers forest. It is threatened by habitat conversion due to agriculture and logging. There are no conservation measures in place. Further studies are needed into the taxonomy, distribution, abundance, reproduction and ecology of this species.
Wikipedia contributors, Lesser pygmy flying squirrel; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T12:48:52.297932+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Petaurillus emiliae Thomas, 1908
- Name authority
- Thomas, 1908
- Common name
- Lesser Pygmy Flying Squirrel
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Rodentia
- Family
- Sciuridae
- Genus
- Petaurillus
- Extinction status
- Recorded extant
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
- classMammalia Linnaeus, 1758
- subclassTheria Parker & Haswell, 1897
- infraclassEutheria Gill, 1872
- orderRodentia Bowdich, 1821
- suborderSciuromorpha Brandt, 1855
- familySciuridae Fischer de Waldheim, 1817
- subfamilySciurinae Fischer de Waldheim, 1817
- tribePteromyini Brandt, 1855
- genusPetaurillus Thomas, 1908
- speciesPetaurillus emiliae Thomas, 1908
Close classified relatives
These entries share the source’s genus, Petaurillus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Hose's Pygmy Flying SquirrelPetaurillus hosei (Thomas, 1900) | SciuridaeChordata | Accepted speciesRecorded extant |
| Selangor Pygmy Flying SquirrelPetaurillus kinlochii (Robinson & Kloss, 1911) | SciuridaeChordata | Accepted speciesRecorded extant |
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://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=632505 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:4FD4Z. Classification follows source parent identifiers. English common names may vary by region.