Alligatorinae

Alligatorinae is a subfamily within the family Alligatoridae that contains the alligators and their closest extinct relatives, and is the sister taxon to Caimaninae. Many genera in Alligatorinae are described, but only the genus Alligator is extant, with the remaining being extinct.

Alligatorinae

User:Catholic 85 on en: wikipedia · 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
AlligatoridaePBDB
Diet
carnivorePBDB, for Crocodylia
Motility
actively mobilePBDB, for Osteichthyes
Environment
marinePBDB, for Mesoeucrocodylia

Time the record covers

At least 72 million years on record.

The record covers at least 72.2 Mya to 11.7 ka. No occurrence read is dated outside 83.6 Mya to 0 Mya.

Late Cretaceous — about 23 of 280 occurrencesLate CretaceousPaleocene — about 28 of 280 occurrencesPaleoceneEocene — about 123 of 280 occurrencesEoceneOligocene — about 5 of 280 occurrencesOligoceneMiocene — about 34 of 280 occurrencesMiocenePliocene — about 6 of 280 occurrencesPleistocene — about 37 of 280 occurrences85–82 Mya — about 2 occurrences82–80 Mya — about 4 occurrences80–77 Mya — about 4 occurrences77–74 Mya — about 4 occurrences74–71 Mya — about 4 occurrences71–68 Mya — about 3 occurrences68–65 Mya — about 6 occurrences65–63 Mya — about 15 occurrences63–60 Mya — about 3 occurrences60–57 Mya — about 3 occurrences57–54 Mya — about 40 occurrences54–51 Mya — about 52 occurrences51–48 Mya — about 7 occurrences48–45 Mya — about 6 occurrences45–43 Mya — about 3 occurrences43–40 Mya — about 2 occurrences40–37 Mya — about 3 occurrences37–34 Mya — about 11 occurrences34–31 Mya — about 2 occurrences31–28 Mya — about 1 occurrence28–26 Mya — about 1 occurrence26–23 Mya — about 2 occurrences23–20 Mya — about 2 occurrences20–17 Mya — about 5 occurrences17–14 Mya — about 7 occurrences14–11 Mya — about 7 occurrences11–8.5 Mya — about 7 occurrences8.5–5.7 Mya — about 4 occurrences5.7–2.8 Mya — about 6 occurrences2.8–0 Mya — about 62 occurrences72.2 Mya11.7 ka85 Mya0 Mya

280 occurrences of Alligatorinae on record, most of them in the Eocene. 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

280 occurrences

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

52 formations

Willwood — 44.30°N, 109.00°WWillwood — 44.63°N, 108.89°WWillwood — 44.44°N, 108.63°WWillwood — 44.56°N, 108.70°WWillwood — 44.59°N, 108.62°WWillwood — 44.51°N, 108.68°WWillwood — 44.53°N, 108.43°WWillwood — 44.37°N, 108.67°WWillwood — 44.65°N, 108.54°WWillwood — 44.60°N, 108.32°WWillwood — 44.59°N, 108.41°WWillwood — 44.53°N, 108.32°WWillwood — 44.65°N, 108.72°WWillwood — 44.65°N, 108.54°WWillwood — 44.52°N, 108.57°WWillwood — 44.65°N, 108.90°WWillwood — 44.60°N, 108.79°WWillwood — 44.67°N, 108.80°WWillwood — 44.82°N, 109.05°WWillwood — 44.28°N, 108.58°WOldman — 49.10°N, 110.94°WOldman — 49.08°N, 110.84°WOldman — 49.08°N, 110.68°WOldman — 49.16°N, 110.72°WFerris — 41.95°N, 106.87°WChadron — 43.60°N, 102.45°WChadron — 43.68°N, 102.82°WChadron — 43.75°N, 102.77°WChadron — 43.78°N, 102.70°WChadron — 43.78°N, 102.55°WChadron — 42.78°N, 103.57°WFort Union — 44.91°N, 108.93°WFort Union — 44.69°N, 108.36°WFort Union — 43.85°N, 108.35°WFort Union — 44.30°N, 109.00°WFort Union — 46.05°N, 104.48°WFort Union — 47.60°N, 107.00°WNorth Horn — 39.18°N, 111.27°WNorth Horn — 39.10°N, 111.80°WNorth Horn — 39.00°N, 111.00°WFleming — 31.00°N, 93.40°WFleming — 30.50°N, 95.00°WFleming — 30.68°N, 95.05°WFleming — 30.61°N, 95.13°WFleming — 30.75°N, 95.27°WFleming — 30.59°N, 94.91°WGoliad — 28.60°N, 97.70°WGoliad — 28.53°N, 97.74°WGoliad — 28.34°N, 97.96°WBridger — 41.13°N, 110.13°WBridger — 41.80°N, 110.70°WBridger — 41.20°N, 110.50°WAlachua — 29.10°N, 82.30°WAlachua — 29.55°N, 82.52°WAlachua — 29.70°N, 82.60°WAlachua — 29.65°N, 82.60°WWasatch — 41.80°N, 110.70°WWasatch — 41.70°N, 109.00°WForemost — 50.07°N, 111.14°WForemost — 49.13°N, 110.87°WBermont — 27.70°N, 82.50°WTamiami — 27.37°N, 82.45°WTamiami — 27.78°N, 82.68°WMessel — 49.93°N, 8.73°EMessel — 49.93°N, 8.75°EShanwang — 32.14°N, 118.70°EShanwang — 36.52°N, 118.54°EHell Creek — 46.90°N, 101.50°WSilver Bluff — 32.56°N, 80.29°WGreen River — 41.20°N, 110.50°WGreen River — 42.13°N, 110.13°WNacimiento — 36.33°N, 108.00°WNacimiento — 36.27°N, 107.76°WRunningwater — 42.75°N, 102.02°WTorreya — 30.61°N, 84.25°WTorreya — 30.50°N, 84.50°WTsubusagawa — 33.38°N, 131.28°EGolden Valley — 46.90°N, 102.80°W

Loading coastlines…

The named rock units Alligatorinae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 28 further formations hold fewer occurrences each and are not listed. 70 occurrences have no formation on record, which is common for older literature.

Alligatorinae and its relatives

Eocene

Where Alligatorinae and its relatives were recorded in the Eocene.

Found in the same rock

2,686 taxa

The Paleobiology Database records 272 sites for Alligatorinae, 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

114 references

Each of the 280 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. 102 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 Alligatorinae

Credit
User:Catholic 85 on en: wikipedia
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itAlligatoridae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Cuvier 1807)