Oceanodroma homochroa
The ashy storm petrel is a small, scarce seabird of the storm petrel family Hydrobatidae. It breeds colonially on islands off the coasts of California and Mexico, and is one of six species of storm petrel that live and feed in the rich California Current system.

Duncan Wright · CC BY-SA 3.0 · 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
- ashy storm-petrelPBDB
- Sits inside
- OceanodromaPBDB
- Diet
- carnivorePBDB, for Coelurosauria
- Life habit
- ground dwelling, solitaryPBDB, for Theropoda
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- marinePBDB, for Procellariiformes
- Mass
- 38.1 gWikidata
Time the record covers
At most 2.6 million years on record.
Every occurrence read is dated to somewhere between 2.58 Mya and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Oceanodroma homochroa 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
5 occurrences- Pleistocene99%
- Holocene1%
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.
Oceanodroma homochroa and its relatives
PleistoceneWhere Oceanodroma homochroa and its relatives were recorded in the Pleistocene.
Found in the same rock
128 taxa- Podiceps nigricollis5 sites
- Ptychoramphus aleuticus5 sites
- Chendytes lawi4 sites
- Larus californicus4 sites
- Melanitta fusca4 sites
- Melospiza melodia4 sites
- Synthliboramphus antiquus4 sites
- Uria aalge4 sites
- Anser caerulescens3 sites
- Asio priscus3 sites
- Branta canadensis3 sites
- Buteo jamaicensis3 sites
- Falco sparverius3 sites
- Fulmarus glacialis3 sites
- Larus occidentalis3 sites
- Phalacrocorax pelagicus3 sites
- Phalacrocorax penicillatus3 sites
- Phoebastria albatrus3 sites
- Puffinus opisthomelas3 sites
- Salpinctes obsoletus3 sites
- Tyto alba3 sites
- Zonotrichia leucophrys3 sites
- Agelaius tricolor2 sites
- Ardenna grisea2 sites
The Paleobiology Database records 5 sites for Oceanodroma homochroa, 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- Terminal Pleistocene–Holocene Avifauna of San Miguel and Santa Rosa Islands: Identifications of Previously Unidentified Avian Remains Recovered from Fossil Sites and Prehistoric Cave Deposits2
- Distribution and provenance of fossil avifauna on San Miguel Island2
- A catalogue of late Quaternary vertebrates from California: Part One, nonmarine lower vertebrate and avian taxa1
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 Oceanodroma homochroa
- Source
- Wikipedia/Commons
- Credit
- Duncan Wright
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Oceanodroma homochroa was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itOceanodroma through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Coues 1864)