Orcinus orca
The orca, or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. The only extant species in the genus Orcinus, it is recognizable by its distinct pigmentation; being mostly black on top, white on the bottom and having recognizable white eye patches. A cosmopolitan species, it inhabits a wide range of marine environments, from Arctic to Antarctic regions to tropical seas, but is more commonly documented in temperate or cooler coastal waters. Scientists have proposed dividing the global population into races, subspecies, or possibly even species.

Robert Pittman · Public Domain · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Also called
- orcaPBDB
- Sits inside
- OrcinusPBDB
- Diet
- piscivore, carnivorePBDB, for Delphinidae
- Life habit
- aquatic, depth=surfacePBDB, for Cetacea
- Motility
- actively mobilePBDB, for Cetacea
- Environment
- marine,freshwaterPBDB, for Odontoceti
Time the record covers
At least 3.5 million years on record.
The record covers at least 3.6 Mya to 11.7 ka. No occurrence read is dated outside 5.333 Mya to 0 Mya.
35 occurrences of Orcinus orca on record. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
35 occurrences- Pliocene3%
- Pleistocene11%
- Holocene86%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
1 formation
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The named rock units Orcinus orca has been recovered from, largest first. Drawn where the rock is now, not where it formed. 33 occurrences have no formation on record, which is common for older literature.
Found in the same rock
93 taxa- Balaenoptera physalus5 sites
- Delphinapterus leucas4 sites
- Physeter macrocephalus4 sites
- Cetacea3 sites
- Phocoena phocoena3 sites
- Balaenoptera acutorostrata2 sites
- Balaenoptera musculus2 sites
- Berardius bairdii2 sites
- Eschrichtius robustus2 sites
- Eubalaena glacialis2 sites
- Megaptera novaeangliae2 sites
- Odobenus rosmarus2 sites
- Pagophilus groenlandica2 sites
- Phoca vitulina2 sites
- Phocoenoides dalli2 sites
- Pusa hispida2 sites
- Rangifer tarandus2 sites
- Thunnus thynnus2 sites
- Ziphius cavirostris2 sites
- Alca torda1 site
- Alces alces1 site
- Alcidae1 site
- Anas platyrhynchos1 site
- Aptenodytes forsteri1 site
The Paleobiology Database records 35 sites for Orcinus orca, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
14 references- Foraging behaviour and ecology of transient killer whales (Orcinus orca)13
- Determining the ages of sub-fossil cetacean remains, found in the Carse of Stirling, Scotland6
- Late Pleistocene and Holocene whale remains (Cetacea) from Denmark and adjacent countries: Species, distribution, chronology, and trace element concentrations5
- The Jortveit farm wetland: A Neolithic fishing site on the Skagerrak coast, Norway1
- Evaluating ancient whale exploitation on the northern Oregon coast through ancient DNA and aooarchaeological analysis1
- Holocene environmental changes and the seal (Phocidae) fauna of the Baltic Sea: coming, going and staying1
- The Eurogeul—first report of the palaeontological, palynological and archaeological investigations of this part of the North Sea1
- Whales, dorphines [dolphins] and porpoises off Shiretoko1
- Sea mammal hunting and the Neoglacial: An archaeofaunal study of environmental change and subsistence technology at Margaret Bay, Unalaska1
- Cetacans of Isla de Guadalupe, Baja California, Mexcico1
- A list of fossil cetaceans in Japan1
- Prehistory in permafrost1
Each of the 35 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 2 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2
Picture of Orcinus orca
- Source
- Wikipedia/Commons
- Credit
- Robert Pittman
- Licence
- Public Domain
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Orca”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itOrcinus through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)