Caimaninae
Smithsonian Institution · CC0 · via Smithsonian. 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
- AlligatoridaePBDB
- Diet
- carnivorePBDB, for Crocodylia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- marinePBDB, for Mesoeucrocodylia
Time the record covers
At least 89 million years on record.
The record covers at least 89.8 Mya to 129 ka. No occurrence read is dated outside 93.9 Mya to 0 Mya.
377 occurrences of Caimaninae on record, most of them in the Miocene. 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
377 occurrences- Late Cretaceous36%
- Paleocene4%
- Eocene3%
- Oligocene4%
- Miocene46%
- Pliocene1%
- Pleistocene4%
- Holoceneunder 1%
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
64 formations
- Hell Creek Formation · Montana Group66
- Urumaco Formation53
- Pebas Formation33
- Solimões Formation24
- Lance Formation22
- Ferris Formation17
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The named rock units Caimaninae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 40 further formations hold fewer occurrences each and are not listed. 22 occurrences have no formation on record, which is common for older literature.
Caimaninae and its relatives
MioceneWhere Caimaninae and its relatives were recorded in the Miocene.
Found in the same rock
1,464 taxa- Brachychampsa montana80 sites
- Trionychidae79 sites
- Lepisosteus occidentalis63 sites
- Myledaphus bipartitus62 sites
- Borealosuchus sternbergii59 sites
- Cyclurus fragosus53 sites
- Baenidae49 sites
- Champsosaurus49 sites
- Ceratopsidae48 sites
- Scapherpeton tectum47 sites
- Lonchidion selachos46 sites
- Compsemys victa45 sites
- Brachychampsa42 sites
- Adocus38 sites
- Paronychodon35 sites
- Purussaurus35 sites
- Theropoda35 sites
- Crocodylia33 sites
- Hadrosaurinae33 sites
- Chelydridae32 sites
- Cimolodon nitidus31 sites
- Hadrosauridae31 sites
- Meniscoessus robustus31 sites
- Lepisosteidae29 sites
The Paleobiology Database records 263 sites for Caimaninae, and this reads 240 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
123 references- The late Miocene caimanine fauna (Crocodylia: Alligatoroidea) of the Urumaco Formation, Venezuela28
- Fossil Vertebrate Collections26
- Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota25
- A Miocene hyperdiverse crocodylian community reveals peculiar trophic dynamics in proto-Amazonian mega-wetlands19
- Vertebrate faunal changes through Lancian and Puercan time in southern Wyoming18
- Crocodylian diversity peak and extinction in the late Cenozoic of the northern Neotropics17
- A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru16
- Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming16
- Georeferencing fossiliferous localities from Solimões and Acre Basins (Brazil) -what we know so far about Solimões Formation and future perspectives12
- Biotic community and landscape changes around the Eocene–Oligocene transition at Shapaja, Peruvian Amazonia: Regional or global drivers?10
- Lower Miocene alligatoroids (Crocodylia) from the Castillo Formation, northwest of Venezuela7
- Fossil crocodilians from Colombia and the Cenozoic history of the Crocodilia in South America7
Each of the 377 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. 111 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 Caimaninae
- Source
- Smithsonian
- Credit
- Smithsonian Institution
- Licence
- CC0 — this site’s default, not the record’s
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAlligatoridae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Brochu 1999