Ardeidae
Herons are long-legged, long-necked, freshwater and coastal birds in the family Ardeidae, with 75 recognised species, some of which are referred to as egrets or bitterns rather than herons. Members of the genus Botaurus are referred to as bitterns, and, together with the zigzag heron, or zigzag bittern, in the monotypic genus Zebrilus, form a monophyletic group, Botaurinae, within the Ardeidae family. Egrets do not form a biologically distinct group from herons, and tend to be named differently because they are mainly white or have decorative plumes in breeding plumage. Herons, by evolutionary adaptation, have long beaks.

MathKnight · 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
- heronPBDB
- Sits inside
- PelecaniformesPBDB
- Diet
- piscivorePBDB
- Life habit
- volantPBDB
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- terrestrialPBDB
Time the record covers
At least 37 million years on record.
The record covers at least 37.71 Mya to 11.7 ka. No occurrence read is dated outside 48.07 Mya to 0 Mya.
237 occurrences of Ardeidae 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
237 occurrencesThese 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
25 formations
- Tamiami Formation7
- Rexroad Formation4
- Alachua Formation4
- Bannockburn Formation · Manuherikia Group4
- Okeechobee Formation3
- Gabal Silsila Formation2
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The named rock units Ardeidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. One further formation holds fewer occurrences and is not listed. 187 occurrences have no formation on record, which is common for older literature.
Ardeidae and its relatives
PleistoceneWhere Ardeidae and its relatives were recorded in the Pleistocene.
Found in the same rock
2,938 taxa- Ardea herodias33 sites
- Tyto alba27 sites
- Anas26 sites
- Anas platyrhynchos26 sites
- Buteo23 sites
- Podilymbus podiceps23 sites
- Phalacrocorax auritus22 sites
- Larus21 sites
- Branta canadensis19 sites
- Corvus brachyrhynchos18 sites
- Corvus corax18 sites
- Nyctanassa violacea18 sites
- Odocoileus virginianus18 sites
- Phalacrocorax18 sites
- Anserinae17 sites
- Antigone canadensis17 sites
- Buteo jamaicensis17 sites
- Equus17 sites
- Haliaeetus leucocephalus17 sites
- Numenius americanus17 sites
- Ardea alba16 sites
- Falco sparverius16 sites
- Anas acuta15 sites
- Anatinae15 sites
The Paleobiology Database records 159 sites for Ardeidae, 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
111 references- The avifauna of the Pleistocene in Florida13
- Prehistoric human impacts on California birds: evidence from the Emeryville shellmoumd avifauna11
- Fossil herons (Aves: Ardeidae) of the late Miocene and early Pliocene of Florida8
- Avian community, climate, and sea-level changes in the Plio-Pleistocene of the Florida Peninsula7
- The fossil Birds of California7
- Two new late Blancan avifaunas from Florida and the extinction of wetland birds in the Plio-Pleistocene6
- The non-passerine Pleistocene avifauna of the Talara Tar Seeps, northwestern Peru6
- Tigriornis leucolopha5
- A new species of night-heron (Ardeidae: Nyctanassa) from Quaternary deposits on Bermuda5
- Prehistoric exploitation of birds on the Pacific coast of Chiapas, Mexico5
- The fossil avifauna of Itchtucknee River, Florida5
- Fossil birds found at Vero, Florida5
Each of the 237 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. 99 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 content2
Picture of Ardeidae
- Source
- Wikipedia/Commons
- Credit
- MathKnight
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
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
- Source
- Wikipedia, “Heron”
- 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 itPelecaniformes through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Leach 1820