Pterodroma axillaris
The Chatham Islands petrel, also known as the Chatham petrel or ranguru (Māori), is a medium-sized, grey, white and black gadfly petrel. It only breeds on the Chatham Islands, New Zealand, and until recently was restricted to the 218-hectare Rangatira or South-East Island.
Christopher Stephens · 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
- Chatham petrelPBDB
- Sits inside
- PterodromaPBDB
- Diet
- carnivorePBDB, for Coelurosauria
- Life habit
- ground dwelling, solitaryPBDB, for Theropoda
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- marinePBDB, for Procellariiformes
Time the record covers
At most 12 thousand years on record.
Every occurrence read is dated to somewhere between 11.7 ka and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Pterodroma axillaris 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
4 occurrences- Holocene100%
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.
Pterodroma axillaris and its relatives
HoloceneWhere Pterodroma axillaris and its relatives were recorded in the Holocene.
Found in the same rock
57 taxa- Pachyptila turtur4 sites
- Pelecanoides urinatrix4 sites
- Megalurus rufescens3 sites
- Pachyptila vittata3 sites
- Anthornis melanocephala2 sites
- Ardenna grisea2 sites
- Chroicocephalus novaehollandiae2 sites
- Coenocorypha chathamica2 sites
- Eudyptes2 sites
- Eudyptula minor2 sites
- Gallirallus dieffenbachii2 sites
- Gallirallus modestus2 sites
- Hemiphaga novaeseelandiae2 sites
- Larus dominicanus2 sites
- Nestor chathamensis2 sites
- Pelagodroma marina2 sites
- Petroica traversi2 sites
- Pterodroma magentae2 sites
- Tadorna2 sites
- Anas1 site
- Anas chathamica1 site
- Anthornis melanura1 site
- Anthus novaeseelandiae1 site
- Ardenna bulleri1 site
The Paleobiology Database records 4 sites for Pterodroma axillaris, 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
3 references- Bird extinctions and fossil bones from Mangere Island, Chatham Islands2
- The history of the Chatham Islands' bird fauna of the last 7000 years - a chronicle of change and extinction1
- Subfossil petrel bones from the Chatham Islands1
Each of the 4 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 Pterodroma axillaris
- Source
- Wikipedia/Commons
- Credit
- Christopher Stephens
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Pterodroma axillaris 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 itPterodroma through timeFormations of the HoloceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Salvin 1893)