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NATURAL HISTORY · CATALOGUE RECORD

Northern Elephant Seal

Mirounga angustirostris (Gill, 1866)

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.

Mating scene with elevated Alpha Male.  Elephant Seals of Piedras Blancas, San Simeon, CA, 31 Jan 2009.

Mating scene with elevated Alpha Male. Elephant Seals of Piedras Blancas, San Simeon, CA, 31 Jan 2009.

Mike Baird · CC BY 2.0 · Image source

Provider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.

Open encyclopedia reference

The northern elephant seal (Mirounga angustirostris) or northern sea elephant, is one of two species of elephant seal (the other is the southern elephant seal). It is a member of the family Phocidae (true seals). Elephant seals derive their name from their great size and from the male's large proboscis. Sexual dimorphism in size is great. Correspondingly, the mating system is highly polygynous; a successful male is able to impregnate up to 50 females in one season.

Wikipedia contributors, Northern elephant seal; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T09:46:20.421181+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Mirounga angustirostris (Gill, 1866)
Name authority
(Gill, 1866)
Common name
Northern Elephant Seal
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Phocidae
Genus
Mirounga
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.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. megaclassTetrapoda
  8. classMammalia Linnaeus, 1758
  9. subclassTheria Parker & Haswell, 1897
  10. infraclassEutheria Gill, 1872
  11. orderCarnivora Bowdich, 1821
  12. suborderCaniformia Kretzoi, 1938
  13. familyPhocidae Gray, 1821
  14. genusMirounga Gray, 1827
  15. speciesMirounga angustirostris (Gill, 1866)

Close classified relatives

These entries share the source’s genus, Mirounga. They are not necessarily the closest relatives established by molecular evidence.

SpeciesClassificationSource status
Southern Elephant SealMirounga leonina (Linnaeus, 1758)PhocidaeChordataAccepted speciesRecorded extant

Browse 17 records assigned to Phocidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Recorded nameSource status
Macrorhinus angustirostris Gill, 1866 Gill, 1866synonym

Documented distribution

Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.

East Pacific

Middle America

North America

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.

  1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=180672 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.

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:43MJ6. Classification follows source parent identifiers. English common names may vary by region.