Paracrocodylomorpha

Paracrocodylomorpha is a clade of pseudosuchian archosaurs. The clade includes the diverse and unusual group Poposauroidea as well as the generally carnivorous and quadrupedal members of Loricata, including modern crocodylians. Paracrocodylomorpha was named by paleontologist J. Michael Parrish in 1993, although the group is now considered to encompass more reptiles than his original definition intended. The most recent definition of Paracrocodylomorpha, as defined by Sterling Nesbitt in 2011, is "the least inclusive clade containing Poposaurus and Crocodylus niloticus. Most groups of paracrocodylomorphs became extinct at the end of the Triassic period, with the exception of the crocodylomorphs, from which crocodylians such as crocodiles and alligators evolved in the latter part of the Mesozoic.

Paracrocodylomorpha

Photo by Derek Ramsey ( Ram-Man ) · CC BY-SA 2.5 · 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
SuchiaPBDB
Diet
carnivorePBDB, for Pseudosuchia
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Diapsida

Time the record covers

At least 248 million years on record.

The record covers at least 248.6 Mya to 11.7 ka. No occurrence read is dated outside 251.902 Mya to 0 Mya.

Permian — about 0 of 5719 occurrencesEarly Triassic — about 4 of 5719 occurrencesMiddle Triassic — about 19 of 5719 occurrencesLate Triassic — about 145 of 5719 occurrencesLate TriassicEarly Jurassic — about 142 of 5719 occurrencesEarly JurassicMiddle Jurassic — about 236 of 5719 occurrencesLate Jurassic — about 453 of 5719 occurrencesEarly Cretaceous — about 624 of 5719 occurrencesEarly CretaceousLate Cretaceous — about 1487 of 5719 occurrencesLate CretaceousPaleocene — about 337 of 5719 occurrencesEocene — about 663 of 5719 occurrencesEoceneOligocene — about 154 of 5719 occurrencesMiocene — about 842 of 5719 occurrencesPliocene — about 157 of 5719 occurrencesPleistocene — about 381 of 5719 occurrences257–248 Mya — about 3 occurrences248–240 Mya — about 10 occurrences240–231 Mya — about 32 occurrences231–223 Mya — about 35 occurrences223–214 Mya — about 37 occurrences214–206 Mya — about 39 occurrences206–197 Mya — about 47 occurrences197–188 Mya — about 34 occurrences188–180 Mya — about 57 occurrences180–171 Mya — about 23 occurrences171–163 Mya — about 204 occurrences163–154 Mya — about 94 occurrences154–146 Mya — about 310 occurrences146–137 Mya — about 192 occurrences137–128 Mya — about 71 occurrences128–120 Mya — about 196 occurrences120–111 Mya — about 123 occurrences111–103 Mya — about 92 occurrences103–94 Mya — about 196 occurrences94–86 Mya — about 70 occurrences86–77 Mya — about 333 occurrences77–69 Mya — about 629 occurrences69–60 Mya — about 500 occurrences60–51 Mya — about 350 occurrences51–43 Mya — about 224 occurrences43–34 Mya — about 201 occurrences34–26 Mya — about 109 occurrences26–17 Mya — about 235 occurrences17–8.6 Mya — about 495 occurrences8.6–0 Mya — about 780 occurrences248.6 Mya11.7 ka257 Mya0 Mya

5,719 occurrences of Paracrocodylomorpha 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

5,719 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

969 formations

Hell 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°WDenver — 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°WChinle — 34.44°N, 109.46°WChinle — 36.33°N, 106.47°WChinle — 35.84°N, 111.25°WChinle — 34.94°N, 109.77°WChinle — 35.03°N, 109.83°WChinle — 35.11°N, 109.83°WChinle — 34.51°N, 109.36°WChinle — 35.65°N, 111.12°WChinle — 39.83°N, 106.33°WChinle — 35.38°N, 109.37°WChinle — 37.56°N, 110.28°WChinle — 34.68°N, 109.58°WChinle — 36.40°N, 109.20°WChinle — 34.94°N, 109.74°WChinle — 34.77°N, 109.52°WChinle — 35.87°N, 111.33°WChinle — 35.84°N, 111.30°WChinle — 35.41°N, 108.47°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°EFerris — 41.94°N, 106.88°WFerris — 41.80°N, 107.00°WFerris — 41.96°N, 106.89°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°WOxford Clay — 52.54°N, 0.25°WOxford Clay — 52.60°N, 0.21°WOxford Clay — 51.83°N, 0.70°WOxford Clay — 51.75°N, 1.18°WOxford Clay — 53.54°N, 0.23°WOxford Clay — 51.37°N, 2.14°WOxford Clay — 50.61°N, 2.45°WBridger — 42.37°N, 108.91°WBridger — 42.42°N, 109.35°WBridger — 41.13°N, 110.13°WBridger — 41.70°N, 109.00°WBridger — 41.80°N, 110.70°WBridger — 41.20°N, 110.50°WBridger — 41.27°N, 110.34°WBridger — 41.27°N, 109.93°WBridger — 41.04°N, 110.23°WIsalo IIIb — 16.49°S, 47.08°EIsalo IIIb — 16.42°S, 47.13°EIsalo IIIb — 16.55°S, 46.98°EEl Castellar — 40.67°N, 0.67°WEl Castellar — 40.66°N, 0.87°WEl Castellar — 40.58°N, 0.69°WEl Castellar — 40.62°N, 0.84°WEl Castellar — 40.46°N, 0.74°WEl Castellar — 40.44°N, 0.73°WKimmeridge Clay — 51.74°N, 1.31°WKimmeridge Clay — 51.75°N, 1.18°WKimmeridge Clay — 51.25°N, 2.16°WKimmeridge Clay — 52.40°N, 0.28°EKimmeridge Clay — 50.61°N, 2.13°WKimmeridge Clay — 50.59°N, 2.47°WKimmeridge Clay — 51.56°N, 1.78°WKimmeridge Clay — 51.35°N, 1.99°WKimmeridge Clay — 51.41°N, 2.00°WKimmeridge Clay — 51.76°N, 1.20°WKimmeridge Clay — 50.63°N, 2.34°WKimmeridge Clay — 51.36°N, 1.65°WKimmeridge Clay — 50.61°N, 2.16°WPozo — 7.33°S, 74.95°WPozo — 7.33°S, 74.95°WPozo — 6.57°S, 76.27°WCedar Mountain — 38.83°N, 109.57°WCedar Mountain — 39.05°N, 111.04°WCedar Mountain — 38.72°N, 109.69°WCedar Mountain — 38.69°N, 111.26°WCedar Mountain — 38.91°N, 110.10°WCedar Mountain — 38.73°N, 109.59°WCedar Mountain — 38.83°N, 109.47°WCedar Mountain — 38.83°N, 109.27°WCedar Mountain — 38.88°N, 111.27°WCedar Mountain — 39.00°N, 111.00°WCedar Mountain — 38.64°N, 111.37°WCedar Mountain — 38.66°N, 111.24°W

Loading coastlines…

The named rock units Paracrocodylomorpha has been recovered from, largest first. Drawn where the rock is now, not where it formed. 945 further formations hold fewer occurrences each and are not listed. 1,031 occurrences have no formation on record, which is common for older literature.

Paracrocodylomorpha and its relatives

Late Cretaceous

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

Found in the same rock

2,825 taxa

The Paleobiology Database records at least 1,460 sites for Paracrocodylomorpha, 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

2,222 references

Each of the 5,719 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. 2,210 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 Paracrocodylomorpha

Credit
Photo by Derek Ramsey ( Ram-Man )
Licence
CC BY-SA 2.5
Commercial use
the licence allows it

Laser scan

Licence
No Copyright (US)
Commercial use
cannot be read from the licence given — check the record
Specimen
Paracrocodylomorpha indet. · pefo:31183

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 itSuchia through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Parrish 1993