Porzana
Porzana is a genus of birds in the crake and rail family, Rallidae. Its scientific name is derived from Venetian terms for small rails. The spotted crake is the type species.

Uncredited · 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- Sits inside
- RallidaePBDB
- 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 11 million years on record.
The record covers at least 11.1 Mya to 11.7 ka. No occurrence read is dated outside 13.82 Mya to 0 Mya.
76 occurrences of Porzana 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
76 occurrences- Miocene1%
- Pliocene1%
- Pleistocene42%
- Holocene56%
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
4 formations
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The named rock units Porzana has been recovered from, largest first. Drawn where the rock is now, not where it formed. 71 occurrences have no formation on record, which is common for older literature.
Found in the same rock
1,252 taxa- Squamata17 sites
- Passeriformes15 sites
- Tyto alba14 sites
- Rallidae13 sites
- Alopecoenas xanthonurus11 sites
- Falco sparverius11 sites
- Gallirallus11 sites
- Podilymbus podiceps11 sites
- Anous stolidus10 sites
- Aplonis opaca10 sites
- Colaptes auratus10 sites
- Ptilinopus roseicapilla9 sites
- Zenaida macroura9 sites
- Agelaius phoeniceus8 sites
- Anas crecca8 sites
- Athene cunicularia8 sites
- Emballonura semicaudata8 sites
- Pteropus8 sites
- Rattus exulans8 sites
- Aenocyon dirus7 sites
- Aerodramus vanikorensis7 sites
- Anas platyrhynchos7 sites
- Corvus brachyrhynchos7 sites
- Equus7 sites
The Paleobiology Database records 73 sites for Porzana, 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
35 references- The prehistory of vertebrates, especially birds, on Tinian, Aguiguan, and Rota, Northern Mariana Islands17
- Descriptions of Thirty-Two New Species of Birds from the Hawaiian Islands: Part I. Non-Passeriformes10
- Two new species of rails (Aves: Rallidae) from Mangaia, southern Cook Islands4
- Avian community, climate, and sea-level changes in the Plio-Pleistocene of the Florida Peninsula3
- Prehistoric extinction of birds on Mangaia, Cook Islands, Polynesia3
- Extinction of birds in eastern Polynesia: A review of the record, and comparison with other Pacific island groups3
- Evolution of the rails of the South Atlantic Islands (Aves: Rallidae)3
- Late Pleistocene-Holocene non-passerine avifauna of Liang Bua (Flores, Indonesia)2
- The prehistory and biogeography of terrestrial vertebrates on Guam, Mariana Islands2
- Upper Pleistocene and Holocene fossil avifauna from Moleta cave (Mallorca, Balearic Islands)2
- The Quaternary avifauna of Crete, Greece2
- Fossil birds from the Dominican Republic2
Each of the 76 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. 23 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 Porzana
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
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, “Porzana”
- 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 itRallidae through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Vieillot 1816