Gaviiformes
Gaviiformes is an order of aquatic birds containing the loons or divers and their closest extinct relatives. Modern gaviiformes are found in many parts of North America and northern Eurasia, though prehistoric species were more widespread.

Tim Bowman, USFWS Originally uploaded by User Kingturtle on en.wikipedia · Public Domain · 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
- loonPBDB
- Sits inside
- AequornithesPBDB
- Diet
- carnivorePBDB, for Coelurosauria
- Life habit
- ground dwelling, solitaryPBDB, for Theropoda
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- terrestrialPBDB, for Theropoda
Time the record covers
At least 65 million years on record.
The record covers at least 66 Mya to 11.7 ka. No occurrence read is dated outside 72.2 Mya to 0 Mya.
134 occurrences of Gaviiformes 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
134 occurrences- Late Cretaceousunder 1%
- Eocene1%
- Oligocene4%
- Miocene12%
- Pliocene10%
- Pleistocene30%
- Holocene42%
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
21 formations
- San Diego Formation10
- Palos Verdes Sand Formation7
- Peace River Formation · Hawthorn Group4
- Calvert Formation · Chesapeake Group4
- Liuchungchi Formation4
- Yorktown Formation · Chesapeake Group3
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The named rock units Gaviiformes has been recovered from, largest first. Drawn where the rock is now, not where it formed. 83 occurrences have no formation on record, which is common for older literature.
Found in the same rock
2,758 taxa- Gavia34 sites
- Gavia immer23 sites
- Larus22 sites
- Gavia stellata21 sites
- Phalacrocorax penicillatus21 sites
- Anas platyrhynchos20 sites
- Branta canadensis20 sites
- Anser caerulescens18 sites
- Corvus corax18 sites
- Anatidae17 sites
- Haliaeetus leucocephalus16 sites
- Phalacrocorax auritus16 sites
- Anas15 sites
- Buteo jamaicensis15 sites
- Phalacrocorax15 sites
- Podiceps nigricollis15 sites
- Fulmarus glacialis14 sites
- Phoebastria albatrus14 sites
- Aythya13 sites
- Buteo13 sites
- Chendytes lawi13 sites
- Equus13 sites
- Phalacrocorax pelagicus13 sites
- Tyto alba13 sites
The Paleobiology Database records 101 sites for Gaviiformes, 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
64 references- Prehistoric human impacts on California birds: evidence from the Emeryville shellmoumd avifauna24
- Birds in Finnish prehistory12
- Fossil birds of the San Diego Formation, Late Pliocene, Blancan, San Diego County, California7
- Distribution and provenance of fossil avifauna on San Miguel Island6
- Miocene and Pliocene birds from the Lee Creek Mine, North Carolina5
- New Pleistocene bird fossils in Taiwan reveal unexpected seabirds in East Asia4
- Avian fossils from the marine Pleistocene of southern California4
- Birds of the Late Pleistocene and Holocene from the Palaeolithic Djuktai cave site of Yakutia, eastern Siberia3
- Declining foraging returns from an inexhaustible resource? Abundance indices and beluga whaling in the western Canadian Arctic3
- A catalogue of late Quaternary vertebrates from California: Part One, nonmarine lower vertebrate and avian taxa3
- The avifauna of the Bone Valley Formation3
- Polar bear fossil and archaeological records from the Pleistocene and Holocene in relation to sea ice extent and open water polynyas2
Each of the 134 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. 52 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 content1
Picture of Gaviiformes
- Source
- Wikipedia/Commons
- Credit
- Tim Bowman, USFWS Originally uploaded by User Kingturtle on en.wikipedia
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Gaviiformes was found in Smithsonian Open Access and Sketchfab.
MorphoSource was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Gaviiformes”
- 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 itAequornithes through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Wetmore and Miller 1926)