Calidris pugnax

The ruff is a medium-sized wading bird that breeds in marshes and wet meadows across northern Eurasia. This highly gregarious sandpiper is migratory and sometimes forms huge flocks in its winter grounds, which include southern and western Europe, Africa, southern Asia and Australia.

Calidris pugnax

Arjan Haverkamp · 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
Also called
ruffPBDB
Sits inside
CalidrisPBDB
Diet
carnivorePBDB, for Coelurosauria
Life habit
ground dwelling, solitaryPBDB, for Theropoda
Motility
actively mobilePBDB, for Theropoda
Environment
marinePBDB, for Charadriiformes
Mass
102 gWikidata

Time the record covers

At least 762 thousand years on record.

The record covers at least 774 ka to 11.7 ka. No occurrence read is dated outside 1.8 Mya to 0 Mya.

Pleistocene — about 6 of 7 occurrencesPleistoceneHolocene — about 1 of 7 occurrences1.8–1.8 Mya — about 0.1 occurrences1.8–1.7 Mya — about 0.1 occurrences1.7–1.6 Mya — about 0.1 occurrences1.6–1.5 Mya — about 0.1 occurrences1.5–1.5 Mya — about 0.1 occurrences1.5–1.4 Mya — about 0.1 occurrences1.4–1.3 Mya — about 0.1 occurrences1.3–1.2 Mya — about 0.1 occurrences1.2–1.1 Mya — about 0.1 occurrences1.1–1.1 Mya — about 0.1 occurrences1.1–997 ka Mya — about 0.1 occurrences997 ka–920 ka Mya — about 0.1 occurrences920 ka–843 ka Mya — about 0.1 occurrences843 ka–767 ka Mya — about 0.1 occurrences153 ka–77 ka Mya — about 2 occurrences77 ka–0 Mya — about 3 occurrences774 ka11.7 ka2.3 Mya0 Mya

7 occurrences of Calidris pugnax 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

7 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.

Calidris pugnax and its relatives

Pleistocene

Where Calidris pugnax and its relatives were recorded in the Pleistocene.

Found in the same rock

126 taxa

The Paleobiology Database records 6 sites for Calidris pugnax, 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

5 references

Each of the 7 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 Calidris pugnax

Credit
Arjan Haverkamp
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Calidris pugnax was found in Sketchfab.

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

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 itCalidris through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)