Archosauriformes

Archosauriformes is a clade of diapsid reptiles encompassing archosaurs and some of their close relatives. It was defined by Jacques Gauthier (1994) as the clade stemming from the last common ancestor of Proterosuchidae and Archosauria. Phil Senter (2005) defined it as the most exclusive clade containing Proterosuchus and Archosauria. Gauthier as part of the Phylonyms (2020) defined the clade as the last common ancestor of Gallus, Alligator, and Proterosuchus, and all its descendants. Archosauriforms are a branch of archosauromorphs which originated in the Late Permian and persist to the present day as the two surviving archosaur groups: crocodilians and birds.

Archosauriformes

Liam Elward Taenadoman Gregg Yan Smokeybjb Summerdrought John Conway · CC BY-SA 4.0 · 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
CrocopodaPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Diapsida

Time the record covers

At least 250 million years on record.

The record covers at least 250.8 Mya to 11.7 ka. No occurrence read is dated outside 259.857 Mya to 0 Mya.

Permian — about 1 of 12000 occurrencesEarly Triassic — about 7 of 12000 occurrencesMiddle Triassic — about 69 of 12000 occurrencesLate Triassic — about 654 of 12000 occurrencesLate TriassicEarly Jurassic — about 578 of 12000 occurrencesEarly JurassicMiddle Jurassic — about 351 of 12000 occurrencesLate Jurassic — about 1211 of 12000 occurrencesEarly Cretaceous — about 1896 of 12000 occurrencesEarly CretaceousLate Cretaceous — about 5208 of 12000 occurrencesLate CretaceousPaleocene — about 90 of 12000 occurrencesEocene — about 399 of 12000 occurrencesEoceneOligocene — about 44 of 12000 occurrencesMiocene — about 420 of 12000 occurrencesPliocene — about 310 of 12000 occurrencesPleistocene — about 701 of 12000 occurrences265–256 Mya — about 0.3 occurrences256–247 Mya — about 7 occurrences247–239 Mya — about 58 occurrences239–230 Mya — about 90 occurrences230–221 Mya — about 156 occurrences221–212 Mya — about 187 occurrences212–203 Mya — about 188 occurrences203–194 Mya — about 433 occurrences194–186 Mya — about 119 occurrences186–177 Mya — about 60 occurrences177–168 Mya — about 85 occurrences168–159 Mya — about 301 occurrences159–150 Mya — about 445 occurrences150–141 Mya — about 789 occurrences141–133 Mya — about 222 occurrences133–124 Mya — about 314 occurrences124–115 Mya — about 525 occurrences115–106 Mya — about 518 occurrences106–97 Mya — about 456 occurrences97–88 Mya — about 424 occurrences88–80 Mya — about 1116 occurrences80–71 Mya — about 2055 occurrences71–62 Mya — about 1466 occurrences62–53 Mya — about 183 occurrences53–44 Mya — about 150 occurrences44–35 Mya — about 101 occurrences35–27 Mya — about 38 occurrences27–18 Mya — about 85 occurrences18–8.8 Mya — about 223 occurrences8.8–0 Mya — about 1204 occurrences250.8 Mya11.7 ka265 Mya0 Mya

12,000+ occurrences of Archosauriformes 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

12,000 occurrences read

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. The read hit its cap, so every figure above is a floor and the shares are of the occurrences read. More on what this infers.

Found in

at least 1052 formations

  • Morrison FormationColorado, Wyoming, Utah · US · 165.3–143.1 Mya661
  • Hell Creek Formation · Montana GroupMontana, South Dakota, North Dakota · US · 72.2–66 Mya628
  • Dinosaur Park Formation · Belly River GroupAlberta, Saskatchewan · CA · 83.6–72.2 Mya568
  • Oldman Formation · Belly River GroupAlberta · CA · 83.6–72.2 Mya281
  • Fruitland/Kirtland FormationNew Mexico · US · 83.6–72.2 Mya271
  • Lance Formation · Montana GroupWyoming, South Dakota, Utah · US · 72.2–66 Mya251
Morrison — 39.07°N, 108.70°WMorrison — 41.89°N, 106.04°WMorrison — 42.04°N, 106.39°WMorrison — 39.65°N, 105.19°WMorrison — 42.15°N, 105.92°WMorrison — 42.02°N, 106.05°WMorrison — 43.38°N, 108.12°WMorrison — 43.63°N, 108.20°WMorrison — 39.15°N, 108.77°WMorrison — 40.42°N, 109.21°WMorrison — 35.20°N, 107.13°WMorrison — 40.44°N, 109.30°WMorrison — 38.12°N, 109.32°WMorrison — 38.54°N, 105.22°WMorrison — 38.81°N, 108.39°WMorrison — 34.94°N, 107.13°WMorrison — 43.43°N, 103.69°WMorrison — 45.25°N, 108.75°WMorrison — 36.21°N, 103.63°WMorrison — 35.32°N, 106.94°WMorrison — 35.56°N, 106.77°WMorrison — 35.60°N, 103.74°WMorrison — 38.45°N, 107.40°WMorrison — 41.98°N, 106.14°WMorrison — 41.88°N, 106.08°WMorrison — 39.24°N, 109.00°WMorrison — 38.58°N, 108.40°WMorrison — 44.54°N, 107.78°WMorrison — 44.65°N, 107.82°WMorrison — 41.97°N, 106.29°WMorrison — 38.73°N, 111.27°WMorrison — 38.85°N, 108.48°WMorrison — 38.55°N, 105.24°WMorrison — 42.55°N, 106.69°WMorrison — 43.65°N, 106.78°WMorrison — 36.90°N, 102.83°WMorrison — 40.53°N, 109.39°WMorrison — 36.93°N, 102.97°WMorrison — 39.17°N, 109.25°WMorrison — 38.54°N, 106.81°WMorrison — 38.64°N, 108.19°WMorrison — 45.54°N, 110.62°WMorrison — 44.47°N, 103.31°WMorrison — 39.01°N, 110.37°WMorrison — 41.88°N, 105.89°WMorrison — 44.53°N, 103.83°WMorrison — 44.18°N, 103.34°WMorrison — 43.41°N, 103.41°WMorrison — 44.46°N, 104.73°WMorrison — 44.25°N, 104.41°WMorrison — 39.32°N, 110.69°WMorrison — 45.45°N, 108.10°WMorrison — 35.32°N, 106.31°WMorrison — 35.58°N, 106.94°WMorrison — 40.09°N, 105.94°WMorrison — 37.53°N, 103.68°WMorrison — 37.78°N, 103.46°WMorrison — 38.81°N, 108.32°WMorrison — 40.47°N, 109.18°WMorrison — 38.32°N, 108.83°WHell Creek — 47.64°N, 106.57°WHell Creek — 47.70°N, 106.23°WHell Creek — 47.80°N, 106.10°WHell Creek — 47.68°N, 106.43°WHell Creek — 45.14°N, 102.50°WHell Creek — 46.47°N, 104.02°WHell Creek — 47.54°N, 107.08°WHell Creek — 45.95°N, 103.96°WHell Creek — 46.10°N, 103.30°WHell Creek — 45.98°N, 103.75°WHell Creek — 46.15°N, 103.81°WHell Creek — 46.18°N, 103.84°WHell Creek — 46.30°N, 103.98°WHell Creek — 46.41°N, 103.94°WHell Creek — 46.38°N, 103.96°WHell Creek — 46.45°N, 103.02°WHell Creek — 46.33°N, 103.90°WHell Creek — 45.94°N, 103.95°WHell Creek — 47.57°N, 107.10°WHell Creek — 47.52°N, 106.40°WHell Creek — 45.55°N, 105.11°WHell Creek — 47.60°N, 107.00°WHell Creek — 45.53°N, 101.63°WHell Creek — 47.88°N, 106.20°WHell Creek — 45.76°N, 104.95°WHell Creek — 47.62°N, 107.32°WHell Creek — 47.57°N, 106.31°WHell Creek — 48.06°N, 105.40°WHell Creek — 47.53°N, 106.92°WHell Creek — 45.85°N, 104.83°WHell Creek — 47.96°N, 106.46°WHell Creek — 47.84°N, 106.16°WHell Creek — 47.52°N, 106.98°WHell Creek — 47.65°N, 106.65°WHell Creek — 47.60°N, 106.38°WHell Creek — 47.55°N, 107.25°WHell Creek — 47.52°N, 107.18°WHell Creek — 47.07°N, 106.92°WHell Creek — 47.60°N, 107.23°WHell Creek — 47.73°N, 106.50°WHell Creek — 47.63°N, 106.20°WHell Creek — 47.64°N, 106.70°WHell Creek — 47.67°N, 106.27°WHell Creek — 45.46°N, 103.84°WHell Creek — 46.90°N, 101.50°WHell Creek — 45.50°N, 104.16°WHell Creek — 47.81°N, 106.28°WHell Creek — 47.68°N, 105.98°WHell Creek — 47.57°N, 106.76°WHell Creek — 46.09°N, 100.63°WHell Creek — 47.10°N, 104.66°WHell Creek — 45.87°N, 103.79°WHell Creek — 45.65°N, 103.62°WHell Creek — 45.89°N, 104.55°WHell Creek — 46.26°N, 105.12°WHell Creek — 45.10°N, 102.09°WDinosaur Park — 50.74°N, 111.53°WDinosaur Park — 50.75°N, 111.46°WDinosaur Park — 50.72°N, 111.56°WDinosaur Park — 50.79°N, 111.60°WDinosaur Park — 50.81°N, 111.32°WDinosaur Park — 50.75°N, 111.40°WDinosaur Park — 49.95°N, 110.27°WDinosaur Park — 50.73°N, 111.30°WDinosaur Park — 49.12°N, 110.47°WDinosaur Park — 50.73°N, 111.80°WDinosaur Park — 50.13°N, 111.69°WDinosaur Park — 50.76°N, 110.02°WDinosaur Park — 50.41°N, 110.29°WDinosaur Park — 50.40°N, 111.10°WDinosaur Park — 49.14°N, 110.42°WDinosaur Park — 50.60°N, 111.62°WDinosaur Park — 50.75°N, 111.40°WDinosaur Park — 50.57°N, 111.51°WDinosaur Park — 50.82°N, 111.86°WDinosaur Park — 51.95°N, 112.93°WDinosaur Park — 49.99°N, 111.42°WDinosaur Park — 51.56°N, 108.14°WDinosaur Park — 49.45°N, 110.82°WDinosaur Park — 51.44°N, 110.39°WDinosaur Park — 51.47°N, 110.39°WDinosaur Park — 52.45°N, 109.17°WOldman — 49.08°N, 110.68°WOldman — 50.75°N, 111.49°WOldman — 50.73°N, 111.80°WOldman — 50.63°N, 111.62°WOldman — 49.10°N, 110.94°WOldman — 49.08°N, 110.84°WOldman — 49.16°N, 110.72°WOldman — 50.83°N, 111.32°WOldman — 49.20°N, 110.60°WOldman — 50.81°N, 111.63°WOldman — 50.90°N, 111.80°WOldman — 50.72°N, 111.48°WOldman — 50.69°N, 111.62°WOldman — 49.28°N, 112.58°WOldman — 49.14°N, 112.58°WOldman — 49.28°N, 112.20°WOldman — 50.72°N, 111.40°WOldman — 50.47°N, 110.39°WOldman — 50.75°N, 111.42°WOldman — 50.71°N, 110.13°WOldman — 49.36°N, 110.58°WOldman — 50.64°N, 110.91°WFruitland/Kirtland — 36.29°N, 108.10°WFruitland/Kirtland — 36.27°N, 108.23°WFruitland/Kirtland — 36.19°N, 108.09°WFruitland/Kirtland — 36.06°N, 107.96°WFruitland/Kirtland — 36.33°N, 108.05°WFruitland/Kirtland — 36.28°N, 108.26°WFruitland/Kirtland — 36.02°N, 107.64°WFruitland/Kirtland — 36.15°N, 107.83°WFruitland/Kirtland — 35.91°N, 106.54°WFruitland/Kirtland — 35.97°N, 107.50°WFruitland/Kirtland — 36.17°N, 107.96°WFruitland/Kirtland — 36.17°N, 107.94°WFruitland/Kirtland — 36.02°N, 107.80°WFruitland/Kirtland — 35.90°N, 107.46°WFruitland/Kirtland — 36.24°N, 108.19°WFruitland/Kirtland — 36.14°N, 108.11°WFruitland/Kirtland — 36.10°N, 107.85°WFruitland/Kirtland — 35.46°N, 108.66°WFruitland/Kirtland — 35.92°N, 107.39°WFruitland/Kirtland — 36.84°N, 107.77°WFruitland/Kirtland — 35.91°N, 107.21°WLance — 43.35°N, 104.48°WLance — 43.12°N, 104.64°WLance — 44.24°N, 109.02°WLance — 43.49°N, 104.46°WLance — 43.30°N, 104.37°WLance — 44.77°N, 100.70°WLance — 41.57°N, 108.67°WLance — 41.57°N, 108.65°WLance — 41.64°N, 107.65°WLance — 43.13°N, 104.49°WLance — 43.00°N, 104.50°WLance — 43.17°N, 104.57°WLance — 43.44°N, 104.41°WLance — 42.20°N, 104.46°WLance — 42.58°N, 105.39°WLance — 43.17°N, 104.91°WLance — 43.14°N, 104.91°WLance — 43.27°N, 104.59°WLance — 45.67°N, 101.48°WLance — 44.09°N, 109.18°WLance — 43.18°N, 104.53°WLance — 37.58°N, 111.83°WLance — 45.93°N, 103.92°WLance — 42.05°N, 106.84°WLance — 44.29°N, 108.84°WLance — 47.40°N, 108.27°WLance — 48.29°N, 105.84°WLance — 43.80°N, 104.62°WLance — 45.75°N, 101.20°WLance — 45.00°N, 103.18°WLance — 42.65°N, 105.24°WLance — 43.28°N, 104.67°WLance — 43.14°N, 104.71°WLance — 42.09°N, 106.88°WLance — 41.91°N, 104.20°WLance — 43.20°N, 104.66°WLance — 43.13°N, 104.07°WLance — 43.49°N, 104.61°WLance — 45.04°N, 108.80°WLance — 42.97°N, 105.53°WLance — 43.37°N, 104.70°WLance — 45.67°N, 101.39°WWillwood — 43.03°N, 108.38°WWillwood — 43.95°N, 107.57°WWillwood — 44.30°N, 109.00°WWillwood — 44.83°N, 109.09°WWillwood — 44.63°N, 108.89°WWillwood — 44.44°N, 108.63°WWillwood — 44.50°N, 108.67°WWillwood — 44.56°N, 108.70°WWillwood — 44.59°N, 108.62°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 — 44.65°N, 108.83°WWillwood — 44.64°N, 108.76°WWillwood — 44.41°N, 108.79°WWillwood — 44.33°N, 108.77°WWillwood — 43.92°N, 108.66°WCloverly — 45.44°N, 108.14°WCloverly — 45.44°N, 108.16°WCloverly — 46.34°N, 109.69°WCloverly — 45.49°N, 108.52°WCloverly — 44.49°N, 107.86°WCloverly — 44.54°N, 108.01°WCloverly — 44.96°N, 108.30°WCloverly — 45.12°N, 108.71°WCloverly — 45.15°N, 108.73°WCloverly — 45.20°N, 108.81°WCloverly — 45.36°N, 108.75°WCloverly — 43.73°N, 108.33°WCloverly — 43.22°N, 107.57°WCloverly — 43.19°N, 107.69°WCloverly — 45.34°N, 108.81°WCloverly — 44.69°N, 108.24°WCloverly — 45.45°N, 108.10°WCloverly — 45.38°N, 108.26°WCloverly — 45.41°N, 108.04°WCloverly — 46.27°N, 109.89°WCloverly — 45.26°N, 108.41°WCloverly — 45.49°N, 108.73°WPortland — 41.57°N, 72.63°WPortland — 42.26°N, 72.57°WPortland — 41.81°N, 72.55°WPortland — 42.10°N, 72.59°WPortland — 41.90°N, 72.57°WPortland — 42.59°N, 72.60°WPortland — 42.61°N, 72.51°WPortland — 42.52°N, 72.55°WPortland — 41.73°N, 72.66°WPortland — 41.69°N, 72.64°WPortland — 42.17°N, 72.67°WPortland — 42.16°N, 72.58°WPortland — 41.55°N, 72.69°WChinle — 34.44°N, 109.46°WChinle — 36.32°N, 106.47°WChinle — 35.05°N, 109.83°WChinle — 35.84°N, 111.25°WChinle — 35.09°N, 109.79°WChinle — 34.94°N, 109.77°WChinle — 37.80°N, 110.33°WChinle — 36.21°N, 106.34°WChinle — 34.53°N, 109.32°WChinle — 35.12°N, 110.55°WChinle — 36.31°N, 106.45°WChinle — 36.34°N, 106.87°WChinle — 38.65°N, 108.91°WChinle — 40.58°N, 109.42°WChinle — 38.00°N, 111.13°WChinle — 34.83°N, 109.82°WChinle — 34.51°N, 109.36°WTendaguru — 9.71°S, 39.23°ETendaguru — 9.69°S, 39.25°ETendaguru — 9.79°S, 39.12°ETendaguru — 9.80°S, 39.31°ETwo Medicine — 47.81°N, 112.18°WTwo Medicine — 47.82°N, 112.66°WTwo Medicine — 48.63°N, 113.75°WTwo Medicine — 48.48°N, 112.70°WTwo Medicine — 48.91°N, 112.64°WTwo Medicine — 48.97°N, 112.65°WTwo Medicine — 48.65°N, 112.97°WTwo Medicine — 47.77°N, 112.29°WTwo Medicine — 48.48°N, 112.58°WTwo Medicine — 48.46°N, 112.47°WTwo Medicine — 47.63°N, 112.58°WTwo Medicine — 47.99°N, 112.28°WTwo Medicine — 48.74°N, 112.73°WTwo Medicine — 48.30°N, 112.34°WJudith River — 46.47°N, 109.30°WJudith River — 46.46°N, 109.41°WJudith River — 48.95°N, 110.62°WJudith River — 47.77°N, 108.95°WJudith River — 47.90°N, 109.00°WJudith River — 47.74°N, 109.62°WJudith River — 47.81°N, 109.59°WJudith River — 48.92°N, 110.58°WJudith River — 47.78°N, 109.38°WJudith River — 48.97°N, 110.93°WJudith River — 48.98°N, 110.45°WJudith River — 46.10°N, 109.10°WJudith River — 46.40°N, 109.66°WJudith River — 46.42°N, 109.27°WJudith River — 46.44°N, 109.83°WJudith River — 46.23°N, 108.98°WJudith River — 46.24°N, 109.59°WJudith River — 48.57°N, 109.99°WJudith River — 48.56°N, 107.78°WJudith River — 47.40°N, 109.65°WLameta — 21.18°N, 80.37°ELameta — 23.35°N, 80.37°ELameta — 23.17°N, 79.97°ELameta — 23.06°N, 73.34°ELameta — 17.33°N, 78.21°ELameta — 20.25°N, 79.10°ELameta — 20.90°N, 79.28°ELameta — 22.92°N, 79.32°ELameta — 20.75°N, 79.48°ELameta — 22.34°N, 74.79°ELameta — 23.17°N, 79.95°ELameta — 23.10°N, 79.84°ELameta — 20.35°N, 79.05°ELameta — 23.50°N, 81.56°ELameta — 23.03°N, 73.33°ELameta — 23.10°N, 73.38°ELameta — 22.86°N, 73.34°ELameta — 22.89°N, 74.28°ELameta — 22.96°N, 74.22°ELameta — 22.95°N, 74.14°ELameta — 22.25°N, 74.61°ELameta — 20.75°N, 79.42°ELameta — 22.13°N, 74.38°ELameta — 22.98°N, 79.28°ELameta — 23.21°N, 80.10°ELameta — 23.34°N, 80.18°ELameta — 23.37°N, 80.46°ELameta — 21.00°N, 79.18°ELameta — 23.77°N, 78.72°ELameta — 23.09°N, 74.15°ELameta — 22.14°N, 74.71°ELameta — 20.71°N, 79.29°ELameta — 23.17°N, 74.12°ELameta — 20.53°N, 79.27°EKirtland — 36.31°N, 108.08°WKirtland — 36.27°N, 108.17°WKirtland — 36.19°N, 107.89°WKirtland — 36.31°N, 108.05°WKirtland — 36.10°N, 108.09°WKirtland — 36.50°N, 108.08°WKirtland — 37.82°N, 110.35°WKirtland — 36.37°N, 108.26°WKirtland — 36.41°N, 108.35°WKirtland — 36.49°N, 108.57°WKirtland — 36.29°N, 108.55°WKirtland — 36.36°N, 108.57°WKirtland — 36.17°N, 107.80°WKirtland — 36.14°N, 107.80°WKirtland — 36.39°N, 108.07°WKirtland — 36.97°N, 108.17°WKirtland — 36.09°N, 108.01°WKirtland — 36.52°N, 108.41°WKirtland — 36.49°N, 108.32°WKirtland — 36.70°N, 108.30°WJindong — 34.91°N, 128.15°EJindong — 34.90°N, 128.15°EJindong — 34.99°N, 128.45°EJindong — 34.99°N, 128.40°EJindong — 35.07°N, 128.42°EJindong — 35.07°N, 128.28°EJindong — 34.97°N, 128.32°EJindong — 35.43°N, 128.52°EYorktown — 35.36°N, 76.82°WBissekty — 42.12°N, 62.66°EBissekty — 40.70°N, 72.60°EBissekty — 42.54°N, 63.30°EBissekty — 42.02°N, 63.30°EBissekty — 42.60°N, 63.47°EBissekty — 41.68°N, 63.82°EGlen Rose Limestone — 32.23°N, 98.23°WGlen Rose Limestone — 31.85°N, 98.62°WGlen Rose Limestone — 30.10°N, 98.42°WGlen Rose Limestone — 29.44°N, 100.12°WGlen Rose Limestone — 30.50°N, 99.40°WGlen Rose Limestone — 29.10°N, 99.44°WGlen Rose Limestone — 29.60°N, 99.12°WGlen Rose Limestone — 29.63°N, 99.26°WGlen Rose Limestone — 29.63°N, 99.42°WGlen Rose Limestone — 29.72°N, 99.00°WGlen Rose Limestone — 30.07°N, 99.33°WGlen Rose Limestone — 30.00°N, 99.11°WGlen Rose Limestone — 30.30°N, 99.05°WGlen Rose Limestone — 29.84°N, 98.22°WGlen Rose Limestone — 30.10°N, 98.50°WGlen Rose Limestone — 30.30°N, 98.30°WGlen Rose Limestone — 30.20°N, 97.98°WGlen Rose Limestone — 30.35°N, 97.79°WGlen Rose Limestone — 30.50°N, 97.91°WGlen Rose Limestone — 30.65°N, 97.67°WGlen Rose Limestone — 30.70°N, 98.09°WGlen Rose Limestone — 30.91°N, 98.03°WGlen Rose Limestone — 31.19°N, 98.13°WGlen Rose Limestone — 31.45°N, 98.25°WGlen Rose Limestone — 31.59°N, 98.13°WGlen Rose Limestone — 31.63°N, 98.21°WGlen Rose Limestone — 31.69°N, 98.38°WGlen Rose Limestone — 31.88°N, 97.63°WGlen Rose Limestone — 32.23°N, 97.76°WGlen Rose Limestone — 32.25°N, 97.81°WGlen Rose Limestone — 32.25°N, 97.72°WGlen Rose Limestone — 32.37°N, 97.69°WGlen Rose Limestone — 29.82°N, 98.77°WGlen Rose Limestone — 29.49°N, 99.21°WKoobi Fora — 3.90°N, 36.24°EKoobi Fora — 3.98°N, 36.32°EKoobi Fora — 4.31°N, 36.27°EKoobi Fora — 4.24°N, 36.26°EKoobi Fora — 4.29°N, 36.23°EKoobi Fora — 3.77°N, 36.44°EKoobi Fora — 3.78°N, 36.33°EKoobi Fora — 3.59°N, 36.24°EKoobi Fora — 3.87°N, 36.37°EKoobi Fora — 3.94°N, 36.25°EKoobi Fora — 4.18°N, 36.42°EKoobi Fora — 4.08°N, 36.35°EKoobi Fora — 4.07°N, 36.37°EAguja — 29.14°N, 103.20°WAguja — 29.20°N, 103.55°WAguja — 29.32°N, 103.52°WAguja — 29.20°N, 103.20°WAguja — 29.25°N, 103.55°WCedar Mountain — 38.80°N, 111.17°WCedar Mountain — 38.83°N, 109.57°WCedar Mountain — 38.72°N, 109.69°WCedar Mountain — 38.78°N, 109.71°WCedar Mountain — 38.94°N, 111.07°WCedar Mountain — 39.14°N, 110.90°WCedar Mountain — 39.21°N, 111.02°WCedar Mountain — 39.16°N, 110.86°WCedar Mountain — 39.05°N, 111.04°WCedar Mountain — 38.81°N, 109.76°WCedar Mountain — 32.83°N, 109.57°WCedar Mountain — 38.91°N, 110.10°WCedar Mountain — 38.83°N, 109.47°WCedar Mountain — 39.00°N, 111.00°WCedar Mountain — 38.66°N, 111.24°WCedar Mountain — 39.18°N, 110.11°WFruitland — 36.06°N, 107.97°WFruitland — 36.29°N, 108.23°WFruitland — 36.49°N, 108.49°WFruitland — 36.15°N, 107.98°WFruitland — 36.26°N, 108.26°WFruitland — 36.18°N, 108.21°WFruitland — 36.25°N, 108.06°WFruitland — 35.95°N, 108.00°WFruitland — 36.21°N, 105.64°WFruitland — 36.21°N, 108.08°WFruitland — 37.86°N, 110.10°WFruitland — 36.00°N, 107.00°WFruitland — 36.99°N, 108.17°WFruitland — 36.63°N, 108.48°WFruitland — 36.70°N, 108.42°WDjadokhta — 44.25°N, 103.33°EDjadokhta — 44.20°N, 103.73°EDjadokhta — 43.66°N, 100.90°EDjadokhta — 44.00°N, 104.00°EDjadokhta — 44.22°N, 103.27°EDjadokhta — 44.13°N, 103.56°EDjadokhta — 42.08°N, 102.17°E

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The named rock units Archosauriformes has been recovered from, largest first. Drawn where the rock is now, not where it formed. The read hit its cap, so each count is a floor. 1,028 further formations hold fewer occurrences each and are not listed. 1,506 occurrences have no formation on record, which is common for older literature.

Found in the same rock

2,375 taxa

The Paleobiology Database records at least 930 sites for Archosauriformes, 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

at least 3,325 references

Each of the 12,000 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. That read hit its cap, so each count is a floor. 3,313 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 Archosauriformes

Credit
Liam Elward Taenadoman Gregg Yan Smokeybjb Summerdrought John Conway
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Archosauriformes 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 itCrocopoda through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gauthier 1986