Larus

Larus is a large genus of gulls with worldwide distribution.

Larus

Irish Wildlife Trust Dublin Branch · CC BY-SA 4.0 · 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
LaridaePBDB
Diet
carnivorePBDB, for Coelurosauria
Life habit
ground dwelling, solitaryPBDB, for Theropoda
Motility
actively mobilePBDB, for Theropoda
Environment
marinePBDB, for Charadriiformes

Time the record covers

At least 23 million years on record.

The record covers at least 23.04 Mya to 11.7 ka. No occurrence read is dated outside 33.9 Mya to 0 Mya.

Eocene — about 0 of 155 occurrencesOligocene — about 1 of 155 occurrencesOligoceneMiocene — about 3 of 155 occurrencesMiocenePliocene — about 10 of 155 occurrencesPleistocene — about 50 of 155 occurrences35–33 Mya — about 0.0 occurrences33–32 Mya — about 0.1 occurrences32–31 Mya — about 0.1 occurrences31–30 Mya — about 0.1 occurrences30–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–27 Mya — about 0.1 occurrences27–25 Mya — about 0.1 occurrences25–24 Mya — about 0.1 occurrences24–23 Mya — about 0.1 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–18 Mya — about 0.1 occurrences18–17 Mya — about 0.1 occurrences17–16 Mya — about 0.1 occurrences16–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–13 Mya — about 0.0 occurrences13–12 Mya — about 0.0 occurrences12–10 Mya — about 0.5 occurrences10–9.2 Mya — about 0.5 occurrences9.2–8.1 Mya — about 0.5 occurrences8.1–6.9 Mya — about 0.4 occurrences5.8–4.6 Mya — about 2 occurrences4.6–3.5 Mya — about 4 occurrences3.5–2.3 Mya — about 4 occurrences2.3–1.2 Mya — about 3 occurrences1.2–0 Mya — about 137 occurrences23.04 Mya11.7 ka34.6 Mya0 Mya

155 occurrences of Larus 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

155 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.

Found in

13 formations

Yorktown — 35.36°N, 76.82°WTamiami — 27.34°N, 82.51°WHillgrove — 45.13°S, 170.97°EPeace River — 27.74°N, 81.93°WSan Diego — 32.69°N, 117.06°WSan Diego — 32.74°N, 117.17°WManix — 34.80°N, 117.00°WAcredale — 36.79°N, 76.17°WPungo River — 35.40°N, 76.80°WKempsville — 36.79°N, 76.17°WPalos Verdes Sand — 33.60°N, 117.80°WPort Orford — 42.83°N, 124.55°WSan Pedro — 33.75°N, 118.28°WBone Valley — 27.71°N, 81.97°W

Loading coastlines…

The named rock units Larus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 132 occurrences have no formation on record, which is common for older literature.

Found in the same rock

2,093 taxa

The Paleobiology Database records 108 sites for Larus, 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

70 references

Each of the 155 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. 58 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 content3

Picture of Larus

Credit
Irish Wildlife Trust Dublin Branch
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Larus dominicanus · l-jz:JZ:61

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itLaridae through timeThe world it lived on

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