Pseudosuchia

Pseudosuchia is one of two major divisions of Archosauria, including living crocodilians and all archosaurs more closely related to crocodilians than to birds. Pseudosuchians are also informally known as "crocodilian-line archosaurs", in contrast to the "bird-line archosaurs" or Avemetatarsalia. Despite Pseudosuchia meaning "false crocodiles", the name is a misnomer as true crocodilians are now defined as a subset of the group.

Pseudosuchia

Kim Alaniz · CC BY 2.0 · 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
ArchosauriaPBDB
Diet
carnivorePBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Diapsida

Time the record covers

At least 259 million years on record.

The record covers at least 259.857 Mya to 11.7 ka. No occurrence read is dated outside 290.1 Mya to 0 Mya.

Permian — about 9 of 7373 occurrencesPermianEarly Triassic — about 69 of 7373 occurrencesMiddle Triassic — about 304 of 7373 occurrencesLate Triassic — about 1312 of 7373 occurrencesLate TriassicEarly Jurassic — about 255 of 7373 occurrencesEarly JurassicMiddle Jurassic — about 236 of 7373 occurrencesLate Jurassic — about 455 of 7373 occurrencesEarly Cretaceous — about 634 of 7373 occurrencesEarly CretaceousLate Cretaceous — about 1491 of 7373 occurrencesLate CretaceousPaleocene — about 337 of 7373 occurrencesEocene — about 663 of 7373 occurrencesOligocene — about 154 of 7373 occurrencesMiocene — about 842 of 7373 occurrencesPliocene — about 157 of 7373 occurrencesPleistocene — about 381 of 7373 occurrences296–286 Mya — about 0.4 occurrences286–276 Mya — about 1.0 occurrences276–266 Mya — about 1.0 occurrences266–256 Mya — about 3 occurrences256–247 Mya — about 90 occurrences247–237 Mya — about 293 occurrences237–227 Mya — about 241 occurrences227–217 Mya — about 439 occurrences217–207 Mya — about 456 occurrences207–197 Mya — about 274 occurrences197–187 Mya — about 74 occurrences187–178 Mya — about 66 occurrences178–168 Mya — about 52 occurrences168–158 Mya — about 224 occurrences158–148 Mya — about 261 occurrences148–138 Mya — about 261 occurrences138–128 Mya — about 94 occurrences128–118 Mya — about 219 occurrences118–108 Mya — about 138 occurrences108–99 Mya — about 137 occurrences99–89 Mya — about 172 occurrences89–79 Mya — about 273 occurrences79–69 Mya — about 651 occurrences69–59 Mya — about 572 occurrences59–49 Mya — about 393 occurrences49–39 Mya — about 250 occurrences39–30 Mya — about 172 occurrences30–20 Mya — about 183 occurrences20–9.9 Mya — about 533 occurrences9.9–0 Mya — about 850 occurrences259.857 Mya11.7 ka296 Mya0 Mya

7,373 occurrences of Pseudosuchia 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

7,373 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

1106 formations

Chinle — 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 — 34.53°N, 109.32°WChinle — 35.12°N, 110.55°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°WChinle — 35.47°N, 108.56°WChinle — 35.41°N, 108.47°WChinle — 36.26°N, 106.81°WChinle — 36.09°N, 111.36°WChinle — 36.07°N, 111.34°WChinle — 35.90°N, 111.29°WChinle — 35.65°N, 111.12°WChinle — 36.40°N, 106.50°WChinle — 39.83°N, 106.33°WChinle — 38.44°N, 109.93°WChinle — 35.38°N, 109.37°WChinle — 37.56°N, 110.28°WChinle — 34.68°N, 109.58°WChinle — 35.02°N, 109.89°WChinle — 34.97°N, 109.98°WChinle — 34.92°N, 109.91°WChinle — 34.82°N, 109.90°WChinle — 34.94°N, 109.74°WChinle — 34.65°N, 109.58°WChinle — 35.33°N, 109.17°WChinle — 35.63°N, 109.16°WChinle — 35.63°N, 109.10°WChinle — 35.35°N, 109.20°WChinle — 36.00°N, 109.45°WChinle — 35.94°N, 109.54°WChinle — 35.67°N, 109.05°WChinle — 36.42°N, 109.33°WChinle — 36.40°N, 109.20°WChinle — 36.45°N, 109.57°WChinle — 36.35°N, 109.47°WChinle — 34.73°N, 109.67°WChinle — 34.83°N, 109.50°WChinle — 34.40°N, 109.60°WChinle — 36.50°N, 109.42°WChinle — 35.93°N, 111.40°WChinle — 35.87°N, 110.97°WChinle — 35.84°N, 111.30°WChinle — 35.47°N, 108.53°WChinle — 36.58°N, 106.83°WChinle — 35.05°N, 109.73°WChinle — 34.90°N, 107.73°WChinle — 36.32°N, 106.43°WChinle — 35.40°N, 108.22°WChinle — 36.10°N, 106.20°WChinle — 36.38°N, 109.57°WChinle — 38.86°N, 109.67°WHell Creek — 47.80°N, 106.10°WHell Creek — 47.68°N, 106.43°WHell Creek — 45.95°N, 103.96°WHell Creek — 46.10°N, 103.30°WHell Creek — 45.98°N, 103.75°WHell Creek — 46.41°N, 103.94°WHell Creek — 46.38°N, 103.96°WHell Creek — 46.18°N, 103.84°WHell Creek — 46.14°N, 103.80°WHell Creek — 46.46°N, 104.02°WHell Creek — 46.33°N, 103.90°WHell Creek — 45.94°N, 103.95°WHell Creek — 45.53°N, 101.63°WHell Creek — 47.55°N, 107.13°WHell Creek — 47.62°N, 107.32°WHell Creek — 47.52°N, 106.98°WHell Creek — 47.57°N, 107.10°WHell Creek — 47.52°N, 106.40°WHell Creek — 47.58°N, 106.30°WHell Creek — 47.55°N, 107.25°WHell Creek — 47.60°N, 106.43°WHell Creek — 47.53°N, 106.92°WHell Creek — 47.07°N, 106.92°WHell Creek — 47.60°N, 107.23°WHell Creek — 46.90°N, 101.50°WHell Creek — 46.09°N, 100.63°WHell Creek — 47.60°N, 107.00°WHell Creek — 47.32°N, 107.15°WHell Creek — 47.95°N, 105.63°WHell Creek — 46.33°N, 104.01°WHell Creek — 45.83°N, 103.90°WHell Creek — 46.41°N, 103.50°WHell Creek — 46.24°N, 107.38°WHell Creek — 47.64°N, 106.57°WHell Creek — 45.66°N, 105.08°WHell Creek — 45.89°N, 104.55°WHell Creek — 45.50°N, 103.10°WHell Creek — 45.64°N, 103.49°WHell Creek — 45.95°N, 104.92°WHell Creek — 45.00°N, 103.19°WHell Creek — 46.00°N, 103.19°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°WWillwood — 44.10°N, 108.03°WWillwood — 44.28°N, 108.58°WWillwood — 44.30°N, 108.20°WSolimões — 8.78°S, 68.90°WSolimões — 10.13°S, 67.81°WSolimões — 9.08°S, 68.67°WSolimões — 8.16°S, 70.55°WSolimões — 9.05°S, 68.77°WSolimões — 7.84°S, 69.15°WSolimões — 8.24°S, 70.42°WSolimões — 9.03°S, 69.47°WSolimões — 9.43°S, 70.51°WSolimões — 9.09°S, 69.86°WSolimões — 9.12°S, 70.13°WSolimões — 9.22°S, 69.91°WSolimões — 9.15°S, 70.23°WSolimões — 9.33°S, 70.37°WSolimões — 9.37°S, 69.94°WSolimões — 8.79°S, 67.47°WSolimões — 9.19°S, 68.70°WSolimões — 9.27°S, 68.71°WSolimões — 9.40°S, 68.74°WSolimões — 10.15°S, 69.30°WSolimões — 10.21°S, 69.38°WSolimões — 10.30°S, 69.48°WSolimões — 10.98°S, 69.71°WSolimões — 10.95°S, 69.66°WSolimões — 10.94°S, 69.52°WSolimões — 10.94°S, 69.43°WSolimões — 10.94°S, 69.35°WSolimões — 7.61°S, 73.39°WSolimões — 8.18°S, 72.78°WSolimões — 8.98°S, 72.75°WSolimões — 9.13°S, 72.70°WSolimões — 9.20°S, 72.72°WSolimões — 9.39°S, 72.72°WSolimões — 8.24°S, 73.26°WSolimões — 8.29°S, 73.25°WSolimões — 8.37°S, 72.81°WSolimões — 8.83°S, 72.78°WSolimões — 8.86°S, 72.77°WSolimões — 8.99°S, 72.76°WSolimões — 9.28°S, 72.69°WSolimões — 11.00°S, 68.77°WSolimões — 6.50°S, 69.67°WMorrison — 39.15°N, 108.77°WMorrison — 40.42°N, 109.21°WMorrison — 41.91°N, 105.96°WMorrison — 38.54°N, 105.22°WMorrison — 41.88°N, 106.11°WMorrison — 39.68°N, 105.19°WMorrison — 41.99°N, 106.08°WMorrison — 41.97°N, 106.29°WMorrison — 41.88°N, 105.89°WMorrison — 44.18°N, 103.34°WMorrison — 44.46°N, 104.73°WMorrison — 38.81°N, 108.32°WMorrison — 38.32°N, 108.83°WMorrison — 40.44°N, 109.30°WMorrison — 39.17°N, 108.77°WMorrison — 38.85°N, 108.48°WMorrison — 39.24°N, 109.00°WMorrison — 36.92°N, 102.98°WMorrison — 42.16°N, 105.91°WMorrison — 42.04°N, 106.39°WMorrison — 40.50°N, 109.17°WMorrison — 44.02°N, 104.24°WMorrison — 37.31°N, 103.52°WMorrison — 38.58°N, 108.40°WMorrison — 42.02°N, 106.05°WMorrison — 38.45°N, 107.40°WMorrison — 39.32°N, 110.69°WMorrison — 41.92°N, 106.36°WMorrison — 40.46°N, 108.39°WMorrison — 43.62°N, 108.18°WMorrison — 42.53°N, 106.76°WMorrison — 38.34°N, 109.10°WMorrison — 42.73°N, 108.58°WMorrison — 35.53°N, 106.90°WMorrison — 39.01°N, 111.02°WMorrison — 40.30°N, 108.57°WMorrison — 40.27°N, 108.68°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°EUrumaco — 11.22°N, 70.24°WUrumaco — 11.24°N, 70.31°WUrumaco — 11.27°N, 70.22°WUrumaco — 11.38°N, 69.93°WUrumaco — 11.17°S, 70.30°WUrumaco — 11.20°N, 70.36°WGrès d'Antully — 46.84°N, 4.43°EGrès d'Antully — 46.90°N, 4.42°EGrès d'Antully — 46.61°N, 4.48°EGrès d'Antully — 46.97°N, 4.31°EDenver — 39.70°N, 104.70°WDenver — 38.91°N, 104.53°WDenver — 39.50°N, 104.70°WDenver — 39.30°N, 104.30°WLance — 43.35°N, 104.48°WLance — 43.30°N, 104.37°WLance — 44.77°N, 100.70°WLance — 43.12°N, 104.64°WLance — 41.57°N, 108.67°WLance — 41.57°N, 108.65°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 — 45.75°N, 101.20°WLance — 45.04°N, 108.80°WLance — 43.00°N, 104.50°WLance — 43.27°N, 104.62°WLance — 43.27°N, 104.65°WLance — 43.43°N, 105.05°WLance — 45.67°N, 101.48°WLance — 45.39°N, 103.70°WLance — 41.91°N, 104.20°WLance — 43.49°N, 104.46°WCloverly — 44.51°N, 107.90°WCloverly — 43.73°N, 108.33°WCloverly — 45.34°N, 108.81°WCloverly — 44.69°N, 108.24°WCloverly — 44.98°N, 108.32°WCloverly — 45.45°N, 108.10°WCloverly — 45.44°N, 108.14°WCloverly — 45.26°N, 108.41°WCloverly — 44.04°N, 107.51°WCloverly — 44.65°N, 107.88°WCloverly — 44.50°N, 107.82°WCloverly — 44.47°N, 109.05°WCloverly — 44.44°N, 109.06°WCloverly — 45.19°N, 108.80°WCloverly — 45.80°N, 109.80°WCloverly — 45.49°N, 108.73°WCloverly — 45.10°N, 106.90°WAdamantina — 21.10°S, 49.28°WAdamantina — 21.94°S, 51.37°WAdamantina — 19.46°S, 49.25°WAdamantina — 25.73°S, 48.58°WAdamantina — 22.05°S, 51.55°WAdamantina — 21.44°S, 50.17°WAdamantina — 20.57°S, 50.47°WAdamantina — 20.34°S, 50.55°WAdamantina — 21.59°S, 51.19°WAdamantina — 21.22°S, 48.57°WAdamantina — 17.70°S, 40.77°WAdamantina — 19.34°S, 49.92°WAdamantina — 22.31°S, 50.03°WAdamantina — 19.51°S, 50.11°WAdamantina — 21.57°S, 51.35°WAdamantina — 21.30°S, 48.48°WAdamantina — 22.34°S, 49.95°WAdamantina — 21.17°S, 48.50°WAdamantina — 21.14°S, 48.97°WAdamantina — 22.12°S, 51.37°WAdamantina — 20.35°S, 49.28°WAdamantina — 21.64°S, 50.06°WAdamantina — 20.28°S, 50.25°WAdamantina — 21.33°S, 48.58°WAdamantina — 19.44°S, 49.26°WAdamantina — 18.34°S, 50.48°WAdamantina — 20.92°S, 50.45°WAdamantina — 22.00°S, 49.00°WPebas — 3.99°S, 73.17°WPebas — 4.01°S, 73.37°WPebas — 4.30°S, 73.46°WPebas — 7.36°S, 74.96°WPebas — 4.01°S, 73.03°WPebas — 2.81°S, 73.55°WPebas — 3.74°S, 73.25°WDinosaur Park — 50.81°N, 111.32°WDinosaur Park — 50.73°N, 111.53°WDinosaur Park — 50.81°N, 111.63°WDinosaur Park — 49.12°N, 110.47°WDinosaur Park — 50.75°N, 111.48°WDinosaur Park — 50.75°N, 111.40°WDinosaur Park — 49.07°N, 110.45°WDinosaur Park — 49.96°N, 110.34°WDinosaur Park — 50.56°N, 111.46°WDinosaur Park — 50.68°N, 108.09°WDinosaur Park — 50.51°N, 110.39°WTecovas — 33.43°N, 101.16°WTecovas — 34.98°N, 101.66°WTecovas — 33.42°N, 101.15°WTecovas — 33.59°N, 101.11°WTecovas — 33.52°N, 101.14°WTecovas — 35.38°N, 102.16°WTecovas — 33.58°N, 101.17°WTecovas — 33.67°N, 100.83°WPortland — 42.28°N, 72.56°WPortland — 42.61°N, 72.55°WPortland — 41.69°N, 72.64°WPortland — 42.61°N, 72.51°WPortland — 41.55°N, 72.69°WPortland — 41.73°N, 72.66°WPortland — 42.05°N, 72.56°WCooper Canyon — 33.52°N, 101.32°WCooper Canyon — 33.11°N, 101.45°WCooper Canyon — 33.00°N, 101.15°WCooper Canyon — 33.04°N, 101.38°WCooper Canyon — 33.45°N, 101.44°WCooper Canyon — 33.18°N, 101.35°WGarita Creek — 35.24°N, 105.79°WGarita Creek — 35.28°N, 104.40°WGarita Creek — 35.35°N, 104.52°WGarita Creek — 35.33°N, 104.33°WGarita Creek — 35.48°N, 105.88°WGarita Creek — 35.28°N, 104.55°WMaevarano — 15.91°S, 46.58°EMaevarano — 15.72°S, 46.32°EMaevarano — 15.98°S, 46.05°EMaevarano — 16.12°S, 45.74°EMaevarano — 16.13°S, 45.63°EPassaic — 40.57°N, 75.10°WPassaic — 40.53°N, 75.06°WPassaic — 40.83°N, 74.11°WPassaic — 40.29°N, 75.80°WPassaic — 40.75°N, 74.19°WPassaic — 40.62°N, 75.16°WPassaic — 40.25°N, 75.46°WPassaic — 40.26°N, 75.73°WPassaic — 40.27°N, 75.86°WPassaic — 40.24°N, 75.59°WPassaic — 40.49°N, 74.75°WPassaic — 40.49°N, 75.52°WPassaic — 40.87°N, 74.20°WPassaic — 40.22°N, 75.43°WFerris — 41.94°N, 106.88°WFerris — 41.80°N, 107.00°WFerris — 41.96°N, 106.89°WTimezgadiouine — 31.03°N, 9.01°WTimezgadiouine — 31.07°N, 8.93°WTimezgadiouine — 31.06°N, 8.97°WTimezgadiouine — 31.20°N, 9.00°WTimezgadiouine — 30.82°N, 9.09°WOldman — 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 — 50.48°N, 111.38°WOldman — 49.36°N, 110.58°WOldman — 49.96°N, 110.26°WFort Union — 44.91°N, 108.93°WFort Union — 44.68°N, 108.34°WFort Union — 44.68°N, 108.35°WFort Union — 44.67°N, 108.45°WFort Union — 43.85°N, 108.35°WFort Union — 44.30°N, 109.00°WFort Union — 46.05°N, 104.48°WFort Union — 46.90°N, 101.50°WFort Union — 47.60°N, 107.00°W

Loading coastlines…

The named rock units Pseudosuchia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1,082 further formations hold fewer occurrences each and are not listed. 1,128 occurrences have no formation on record, which is common for older literature.

Pseudosuchia and its relatives

Late Cretaceous

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

Found in the same rock

2,852 taxa

The Paleobiology Database records at least 1,384 sites for Pseudosuchia, 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

2,707 references

Each of the 7,373 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. 2,695 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 Pseudosuchia

Credit
Kim Alaniz
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Pseudosuchia 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 itArchosauria through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Zittel 1890)