Histriophoca fasciata
The ribbon seal is a medium-sized pinniped from the true seal family (Phocidae). A seasonally ice-bound species, it is found in the Arctic and Subarctic regions of the North Pacific Ocean, notably in the Bering Sea and Sea of Okhotsk. It is distinguished by its striking coloration, with two wide white strips and two white circles against dark brown or black fur.

Bering Land Bridge National Preserve · CC BY-SA 2.0 · 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
- ribbon sealPBDB
- Sits inside
- HistriophocaPBDB
- Diet
- piscivore, carnivorePBDB, for Phocidae
- Life habit
- amphibiousPBDB, for Pinnipedia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- marinePBDB, for Pinnipedia
Time the record covers
At most 129 thousand years on record.
Every occurrence read is dated to somewhere between 129 ka and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Histriophoca fasciata on record, most of them in the Holocene. 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
6 occurrences- Pleistocene33%
- Holocene67%
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 Histriophoca fasciata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Histriophoca fasciata and its relatives
HoloceneWhere Histriophoca fasciata and its relatives were recorded in the Holocene.
Found in the same rock
5 taxa- Phoca vitulina2 sites
- Delphinapterus1 site
- Eschrichtius1 site
- Pusa hispida1 site
- Vulpes lagopus1 site
The Paleobiology Database records 6 sites for Histriophoca fasciata, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
4 references- Alaska marine mammal stock assessments3
- New evidence for the age of the Gubik Formation, Alaskan North Slope1
- Kurten and Anderson, 19801
- Remarks on the distribution and natural history of pagophilic pinnipeds in the Bering and Chukchi Seas1
Each of the 6 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. 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 content1
Picture of Histriophoca fasciata
- Source
- Wikipedia/Commons
- Credit
- Bering Land Bridge National Preserve
- Licence
- CC BY-SA 2.0
- Commercial use
- the licence allows it
No 3D scan of Histriophoca fasciata was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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, “Ribbon seal”
- 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 itHistriophoca through timeFormations of the HoloceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Zimmermann 1783)