Squamata

Squamata

Thomas H. Fritts and Dawn Leasman-Tanner/U.S. Geological Survey · Public Domain · 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
Also called
squamatesPBDB
Sits inside
ReptiliaPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 251 million years on record.

The record covers at least 251.902 Mya to 11.7 ka. No occurrence read is dated outside 259.857 Mya to 0 Mya.

Permian — about 6 of 9818 occurrencesEarly Triassic — about 25 of 9818 occurrencesMiddle Triassic — about 50 of 9818 occurrencesLate Triassic — about 53 of 9818 occurrencesLate TriassicEarly Jurassic — about 2 of 9818 occurrencesEarly JurassicMiddle Jurassic — about 41 of 9818 occurrencesLate Jurassic — about 82 of 9818 occurrencesEarly Cretaceous — about 243 of 9818 occurrencesEarly CretaceousLate Cretaceous — about 2120 of 9818 occurrencesLate CretaceousPaleocene — about 229 of 9818 occurrencesEocene — about 1625 of 9818 occurrencesEoceneOligocene — about 542 of 9818 occurrencesMiocene — about 2075 of 9818 occurrencesPliocene — about 586 of 9818 occurrencesPleistocene — about 1767 of 9818 occurrences265–256 Mya — about 3 occurrences256–247 Mya — about 25 occurrences247–239 Mya — about 50 occurrences239–230 Mya — about 11 occurrences230–221 Mya — about 14 occurrences221–212 Mya — about 15 occurrences212–203 Mya — about 14 occurrences203–194 Mya — about 3 occurrences194–186 Mya — about 0.0 occurrences186–177 Mya — about 2 occurrences177–168 Mya — about 12 occurrences168–159 Mya — about 32 occurrences159–150 Mya — about 23 occurrences150–141 Mya — about 72 occurrences141–133 Mya — about 43 occurrences133–124 Mya — about 45 occurrences124–115 Mya — about 83 occurrences115–106 Mya — about 46 occurrences106–97 Mya — about 107 occurrences97–88 Mya — about 212 occurrences88–80 Mya — about 462 occurrences80–71 Mya — about 768 occurrences71–62 Mya — about 671 occurrences62–53 Mya — about 424 occurrences53–44 Mya — about 553 occurrences44–35 Mya — about 603 occurrences35–27 Mya — about 526 occurrences27–18 Mya — about 574 occurrences18–8.8 Mya — about 1316 occurrences8.8–0 Mya — about 3113 occurrences251.902 Mya11.7 ka265 Mya0 Mya

9,818 occurrences of Squamata on record, most of them in the Late Cretaceous. 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

9,818 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

791 formations

Willwood — 43.95°N, 107.57°WWillwood — 44.30°N, 109.00°WWillwood — 44.58°N, 108.90°WWillwood — 44.65°N, 109.93°WWillwood — 44.42°N, 108.69°WWillwood — 44.44°N, 108.63°WWillwood — 44.56°N, 108.70°WWillwood — 44.51°N, 108.68°WWillwood — 44.49°N, 108.54°WWillwood — 44.53°N, 108.79°WWillwood — 44.65°N, 108.54°WWillwood — 44.59°N, 108.41°WWillwood — 44.65°N, 108.72°WWillwood — 44.65°N, 108.90°WWillwood — 44.41°N, 108.79°WWillwood — 44.35°N, 108.75°WWillwood — 44.52°N, 108.65°WWillwood — 44.60°N, 108.79°WWillwood — 44.67°N, 108.80°WWillwood — 43.92°N, 108.66°WWillwood — 44.78°N, 108.97°WWillwood — 44.77°N, 109.08°WWillwood — 44.85°N, 109.17°WWillwood — 44.28°N, 108.58°WWillwood — 44.30°N, 108.20°WWillwood — 44.30°N, 108.07°WWillwood — 44.50°N, 108.00°WWillwood — 45.00°N, 109.05°WWillwood — 44.00°N, 108.00°WWillwood — 44.10°N, 108.20°WWillwood — 44.88°N, 108.78°WLance — 43.35°N, 104.48°WLance — 44.24°N, 109.02°WLance — 43.12°N, 104.64°WLance — 41.57°N, 108.67°WLance — 43.18°N, 104.53°WLance — 43.15°N, 104.57°WLance — 43.13°N, 104.49°WLance — 43.80°N, 104.62°WLance — 43.24°N, 104.29°WLance — 42.76°N, 104.43°WLance — 43.00°N, 104.50°WLance — 44.37°N, 107.60°WLance — 44.94°N, 108.85°WLance — 47.79°N, 104.56°WLance — 43.49°N, 104.46°WUpper Freshwater Molasse — 48.15°N, 9.88°EUpper Freshwater Molasse — 48.44°N, 11.04°EUpper Freshwater Molasse — 48.63°N, 11.80°EUpper Freshwater Molasse — 48.66°N, 10.23°EUpper Freshwater Molasse — 47.67°N, 8.93°EUpper Freshwater Molasse — 48.57°N, 12.00°EUpper Freshwater Molasse — 48.50°N, 11.09°EUpper Freshwater Molasse — 48.60°N, 11.08°EUpper Freshwater Molasse — 48.09°N, 10.03°EUpper Freshwater Molasse — 48.17°N, 10.10°EBridger — 42.37°N, 108.91°WBridger — 42.42°N, 109.35°WBridger — 42.70°N, 110.10°WBridger — 41.80°N, 110.70°WBridger — 41.28°N, 110.03°WBridger — 41.04°N, 110.23°WBridger — 46.10°N, 109.75°WBridger — 41.20°N, 110.50°WBridger — 41.70°N, 109.00°WBridger — 41.29°N, 110.55°WBridger — 41.60°N, 109.97°WBridger — 41.27°N, 110.34°WBridger — 41.24°N, 109.70°WBridger — 41.50°N, 110.60°WBridger — 41.37°N, 109.82°WWasatch — 42.37°N, 108.91°WWasatch — 42.72°N, 110.10°WWasatch — 41.80°N, 110.70°WWasatch — 42.07°N, 109.10°WWasatch — 41.70°N, 109.00°WWasatch — 44.50°N, 108.00°WWasatch — 40.60°N, 108.10°WWasatch — 44.00°N, 106.60°WBrule — 42.88°N, 103.58°WBrule — 42.62°N, 105.25°WBrule — 42.90°N, 105.38°WBrule — 40.95°N, 103.38°WBrule — 40.83°N, 104.00°WBrule — 42.78°N, 103.88°WBrule — 41.80°N, 103.80°WBrule — 43.30°N, 102.50°WBrule — 43.90°N, 102.40°WBrule — 40.74°N, 103.19°WBrule — 42.40°N, 103.80°WBrule — 40.94°N, 103.36°WBrule — 40.80°N, 103.10°WBrule — 43.39°N, 102.49°WBrule — 41.70°N, 103.10°WBrule — 42.86°N, 103.91°WBrule — 42.48°N, 103.77°WBrule — 43.71°N, 102.58°WBrule — 42.76°N, 105.38°WBrule — 40.73°N, 103.11°WBrule — 41.50°N, 103.80°WBrule — 42.90°N, 105.20°WBrule — 40.93°N, 103.32°WBrule — 45.50°N, 103.10°WBrule — 43.63°N, 102.64°WBrule — 45.62°N, 103.27°WBrule — 42.85°N, 103.82°WBaruungoyot — 43.49°N, 101.13°EBaruungoyot — 43.49°N, 101.28°EBaruungoyot — 43.32°N, 99.83°EBaruungoyot — 43.52°N, 109.12°EBaruungoyot — 43.15°N, 99.45°EBaruungoyot — 43.30°N, 99.60°EBaruungoyot — 43.47°N, 101.52°EBaruungoyot — 43.47°N, 99.83°EOldman — 50.75°N, 111.51°WOldman — 49.10°N, 110.94°WOldman — 49.08°N, 110.84°WOldman — 49.08°N, 110.68°WOldman — 49.16°N, 110.72°WOldman — 50.83°N, 111.32°WOldman — 49.28°N, 112.58°WOldman — 50.70°N, 111.50°WOldman — 50.48°N, 111.38°WOldman — 49.30°N, 110.60°WOldman — 50.90°N, 111.80°WHell Creek — 47.80°N, 106.10°WHell Creek — 47.52°N, 106.40°WHell Creek — 47.55°N, 107.13°WHell Creek — 47.62°N, 107.32°WHell Creek — 47.57°N, 107.10°WHell Creek — 47.58°N, 106.30°WHell Creek — 47.55°N, 107.25°WHell Creek — 47.52°N, 107.18°WHell Creek — 47.53°N, 106.92°WHell Creek — 47.07°N, 106.92°WHell Creek — 47.60°N, 107.23°WHell Creek — 47.60°N, 107.00°WHell Creek — 47.27°N, 107.13°WHell Creek — 46.41°N, 103.50°WHell Creek — 46.47°N, 104.02°WHell Creek — 45.50°N, 103.10°WHell Creek — 45.64°N, 103.49°WHell Creek — 47.10°N, 104.69°WHell Creek — 45.95°N, 104.92°WHell Creek — 45.00°N, 103.19°WHell Creek — 46.49°N, 100.63°WFriars — 32.90°N, 117.10°WDjadokhta — 44.16°N, 103.69°EDjadokhta — 43.66°N, 100.90°EDjadokhta — 44.13°N, 103.56°EDjadokhta — 42.08°N, 102.17°EDjadokhta — 44.22°N, 103.27°EDjadokhta — 44.00°N, 104.00°EDjadokhta — 43.65°N, 100.78°EDjadokhta — 44.09°N, 102.91°EDjadokhta — 44.05°N, 102.82°EFort Union — 45.20°N, 109.00°WFort Union — 41.30°N, 107.74°WFort Union — 45.80°N, 109.80°WFort Union — 44.91°N, 108.93°WFort Union — 44.72°N, 108.62°WFort Union — 44.68°N, 108.35°WFort Union — 44.66°N, 108.30°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°WFort Union — 46.90°N, 101.50°WFort Union — 42.29°N, 108.18°WPerrière — 44.37°N, 1.73°EPerrière — 44.38°N, 1.43°EPerrière — 44.35°N, 1.73°EValentine — 42.78°N, 100.03°WValentine — 42.80°N, 100.80°WValentine — 42.81°N, 100.05°WValentine — 40.02°N, 98.53°WValentine — 42.49°N, 98.11°WChadron — 46.10°N, 103.30°WChadron — 42.40°N, 103.80°WChadron — 42.80°N, 103.40°WChadron — 43.60°N, 102.45°WChadron — 43.30°N, 102.50°WChadron — 45.47°N, 112.62°WChadron — 41.96°N, 104.38°WChadron — 42.00°N, 104.20°WChadron — 42.67°N, 105.31°WChadron — 43.00°N, 104.50°WChadron — 42.97°N, 105.50°WChadron — 43.00°N, 104.23°WChadron — 42.80°N, 103.10°WChadron — 42.69°N, 103.42°WChadron — 45.90°N, 112.25°WChadron — 43.20°N, 107.10°WChadron — 42.86°N, 103.57°WAsh Hollow — 41.30°N, 101.89°WAsh Hollow — 43.40°N, 100.60°WAsh Hollow — 42.63°N, 100.05°WAsh Hollow — 42.30°N, 98.00°WAguja — 29.32°N, 103.52°WAguja — 29.10°N, 103.17°WAguja — 29.20°N, 103.55°WAguja — 29.34°N, 103.59°WKingsdown — 37.20°N, 100.30°WKingsdown — 37.04°N, 100.50°WNiobrara — 38.95°N, 100.48°WNiobrara — 38.88°N, 99.33°WNiobrara — 38.82°N, 100.18°WNiobrara — 38.48°N, 100.90°WNiobrara — 38.72°N, 100.70°WNiobrara — 38.72°N, 100.45°WNiobrara — 38.00°N, 100.00°WNiobrara — 38.00°N, 100.25°WNiobrara — 39.02°N, 99.45°WNiobrara — 38.77°N, 100.90°WNiobrara — 48.63°N, 98.04°WNiobrara — 37.47°N, 104.62°WNiobrara — 43.04°N, 97.26°WNiobrara — 39.23°N, 99.30°WNiobrara — 38.90°N, 100.10°WNiobrara — 39.35°N, 99.83°WNiobrara — 39.00°N, 99.50°WNiobrara — 38.90°N, 101.10°WNiobrara — 38.83°N, 100.12°WNiobrara — 38.75°N, 100.21°WNiobrara — 39.12°N, 100.02°WNiobrara — 38.92°N, 100.33°WNiobrara — 38.88°N, 97.37°WNiobrara — 38.84°N, 100.96°WNiobrara — 43.41°N, 103.31°WNiobrara — 39.65°N, 99.22°WNiobrara — 38.79°N, 100.76°WRexroad — 37.10°N, 100.90°WRexroad — 37.20°N, 100.30°WRexroad — 37.13°N, 100.48°WMorrison — 40.42°N, 109.21°WMorrison — 41.89°N, 106.00°WMorrison — 38.54°N, 105.21°WMorrison — 40.44°N, 109.32°WMorrison — 44.46°N, 104.73°WMorrison — 40.47°N, 109.18°WMorrison — 41.98°N, 106.15°WMorrison — 39.15°N, 108.77°WMorrison — 39.15°N, 108.77°WMorrison — 38.99°N, 109.27°WMorrison — 44.06°N, 106.72°WMorrison — 39.07°N, 108.73°WMorrison — 40.30°N, 108.57°WKaiparowits — 37.80°N, 111.50°WKaiparowits — 37.40°N, 111.20°WKaiparowits — 37.42°N, 111.77°WKaiparowits — 37.20°N, 112.88°WWind River — 43.20°N, 107.33°WWind River — 43.13°N, 104.07°WWind River — 43.20°N, 108.20°WWind River — 43.20°N, 107.10°WWind River — 43.73°N, 107.76°WDinosaur Park — 50.81°N, 111.32°WDinosaur Park — 49.12°N, 110.47°WDinosaur Park — 50.74°N, 111.49°WDinosaur Park — 50.79°N, 111.62°WDinosaur Park — 50.75°N, 111.46°WDinosaur Park — 50.75°N, 111.40°WDinosaur Park — 50.41°N, 110.29°WDinosaur Park — 49.96°N, 110.27°WDinosaur Park — 50.84°N, 111.14°WDinosaur Park — 50.68°N, 108.09°W

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The named rock units Squamata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 767 further formations hold fewer occurrences each and are not listed. 4,473 occurrences have no formation on record, which is common for older literature.

Squamata and its relatives

Late Cretaceous

Where Squamata and its relatives were recorded in the Late Cretaceous.

Found in the same rock

3,783 taxa

The Paleobiology Database records at least 786 sites for Squamata, 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

2,058 references

Each of the 9,818 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. 2,046 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 Squamata

Credit
Thomas H. Fritts and Dawn Leasman-Tanner/U.S. Geological Survey
Licence
Public Domain
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial-ShareAlike
Commercial use
the licence does not allow 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itReptilia through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Oppel 1811)