Polysticta stelleri

Steller's eider is a migratory Arctic sea duck that breeds along the coastlines of Russia and Alaska, as well as in the Baltic Sea. It is the smallest, and fastest flying of the duck species known as eiders; it is closely related to the other species of eider in the genus Somateria, but sufficiently distinct to be given separate recognition as the only member of the genus Polysticta.

Polysticta stelleri

Ron Knight from Seaford, East Sussex, United Kingdom · CC BY 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
Sits inside
PolystictaPBDB
Diet
herbivorePBDB, for Anseriformes
Life habit
volantPBDB, for Anseriformes
Motility
actively mobilePBDB, for Theropoda
Environment
terrestrialPBDB, for Theropoda
Mass
58 gWikidata

Time the record covers

At most 118 thousand years on record.

The one occurrence read is dated to somewhere between 129 ka and 11.7 ka, which is a dating window rather than a span.

Pleistocene — about 1 of 1 occurrencePleistoceneHolocene — about 0 of 1 occurrence147 ka–126 ka Mya — about 0.0 occurrences126 ka–105 ka Mya — about 0.2 occurrences105 ka–84 ka Mya — about 0.2 occurrences84 ka–63 ka Mya — about 0.2 occurrences63 ka–42 ka Mya — about 0.2 occurrences42 ka–21 ka Mya — about 0.2 occurrences21 ka–0 Mya — about 0.1 occurrences629 ka0 Mya

1 occurrence of Polysticta stelleri on record, most of them in the Pleistocene. 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

1 occurrences

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.

Polysticta stelleri and its relatives

Pleistocene

Where Polysticta stelleri and its relatives were recorded in the Pleistocene.

Found in the same rock

21 taxa

The Paleobiology Database records 1 site for Polysticta stelleri, 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

1 reference

Each of the 1 occurrence 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Polysticta stelleri

Credit
Ron Knight from Seaford, East Sussex, United Kingdom
Licence
CC BY 2.0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Polysticta stelleri · UMMZ:birds:151279

The description on this site

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 itPolysticta through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Pallas 1769)