Chroicocephalus novaehollandiae

The silver gull is a gull in Oceania. It is the most common gull of Australia. It has been found throughout the continent, but particularly at or near coastal areas. It is smaller than the Pacific gull, which also lives in Australia.

Chroicocephalus novaehollandiae

JJ Harrison · 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
Also called
silver gullPBDB
Sits inside
ChroicocephalusPBDB
Diet
carnivorePBDB, for Coelurosauria
Life habit
ground dwelling, solitaryPBDB, for Theropoda
Motility
actively mobilePBDB, for Theropoda
Environment
marinePBDB, for Charadriiformes
Mass
313 gWikidata

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.

Pleistocene — about 2 of 5 occurrencesPleistoceneHolocene — about 3 of 5 occurrences147 ka–126 ka Mya — about 0.1 occurrences126 ka–105 ka Mya — about 0.4 occurrences105 ka–84 ka Mya — about 0.4 occurrences84 ka–63 ka Mya — about 0.4 occurrences63 ka–42 ka Mya — about 0.4 occurrences42 ka–21 ka Mya — about 0.4 occurrences21 ka–0 Mya — about 3 occurrences629 ka0 Mya

5 occurrences of Chroicocephalus novaehollandiae 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

5 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

1 formation

Hillgrove — 45.13°S, 170.97°E

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The named rock units Chroicocephalus novaehollandiae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Chroicocephalus novaehollandiae and its relatives

Holocene

Where Chroicocephalus novaehollandiae and its relatives were recorded in the Holocene.

Found in the same rock

161 taxa

The Paleobiology Database records 5 sites for Chroicocephalus novaehollandiae, 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

4 references

Each of the 5 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 Chroicocephalus novaehollandiae

Credit
JJ Harrison
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Chroicocephalus novaehollandiae 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 itChroicocephalus through timeFormations of the HoloceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Stephens 1826)