Gerrhonotinae

An alligator lizard is any one of various species of lizards in the family Anguidae that have some shared characteristics. The term may specifically refer to:

Gerrhonotinae

The original uploader was Dawson at English Wikipedia . · CC BY-SA 2.5 · via Wikidata/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
AnguidaePBDB
Diet
insectivore, carnivorePBDB, for Anguidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 65 million years on record.

The record covers at least 66 Mya to 210 ka. No occurrence read is dated outside 72.2 Mya to 0 Mya.

Late Cretaceous — about 2 of 32 occurrencesLate CretaceousPaleocene — about 2 of 32 occurrencesPaleoceneEocene — about 7 of 32 occurrencesEoceneOligocene — about 0 of 32 occurrencesMiocene — about 16 of 32 occurrencesMiocenePliocene — about 0 of 32 occurrencesPleistocene — about 4 of 32 occurrences74–71 Mya — about 0.3 occurrences71–69 Mya — about 0.8 occurrences69–66 Mya — about 0.8 occurrences66–64 Mya — about 0.1 occurrences64–61 Mya — about 0.8 occurrences61–59 Mya — about 0.2 occurrences59–56 Mya — about 0.7 occurrences56–54 Mya — about 3 occurrences54–52 Mya — about 3 occurrences52–49 Mya — about 0.6 occurrences39–37 Mya — about 0.1 occurrences37–34 Mya — about 0.8 occurrences34–32 Mya — about 0.2 occurrences20–17 Mya — about 5 occurrences17–15 Mya — about 5 occurrences15–12 Mya — about 3 occurrences12–9.8 Mya — about 2 occurrences9.8–7.4 Mya — about 0.4 occurrences4.9–2.5 Mya — about 0.5 occurrences2.5–0 Mya — about 5 occurrences66 Mya210 ka74 Mya0 Mya

32 occurrences of Gerrhonotinae 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

32 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

15 formations

Arikaree — 43.20°N, 108.20°WArikaree — 43.20°N, 107.10°WValentine — 42.78°N, 100.03°WValentine — 42.80°N, 100.80°WValentine — 42.81°N, 100.05°WWillwood — 44.30°N, 109.00°WWillwood — 43.95°N, 107.57°WWillwood — 44.50°N, 108.00°WRunningwater — 42.37°N, 103.32°WLance — 43.12°N, 104.64°WLance — 41.57°N, 108.67°WWasatch — 41.70°N, 109.00°WOgallala — 39.08°N, 99.75°W"unnamed sandstone" — 33.90°N, 117.00°WFort Union — 46.05°N, 104.48°WChadron — 46.10°N, 103.30°WRicardo — 35.40°N, 117.92°WPalm Springs — 32.97°N, 116.13°WMontezuma — 37.99°N, 121.71°WWind River — 43.20°N, 107.10°WMR Caliente — 34.30°N, 119.00°W

Loading coastlines…

The named rock units Gerrhonotinae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Gerrhonotinae and its relatives

Miocene

Where Gerrhonotinae and its relatives were recorded in the Miocene.

Found in the same rock

870 taxa

The Paleobiology Database records 31 sites for Gerrhonotinae, 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

24 references

Each of the 32 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. 12 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 Gerrhonotinae

Credit
The original uploader was Dawson at English Wikipedia .
Licence
CC BY-SA 2.5
Commercial use
the licence allows it

No 3D scan of Gerrhonotinae was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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 itAnguidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Cope 1864)