Pseudosuchia
E555630
Pseudosuchia is a major archosaur group that includes modern crocodilians and their extinct relatives, such as many Triassic predatory reptiles.
Observed surface forms (2)
| Surface form | Occurrences |
|---|---|
| Crurotarsi | 1 |
| Ornithosuchidae | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
archosaur group
ⓘ
clade ⓘ |
| bodySizeRange | small to very large archosaurs ⓘ |
| characterizedBy |
ankle joint with crurotarsal configuration in many members
ⓘ
typically sprawling to semi-erect limb posture in many taxa ⓘ |
| containsExtantMembers | true ⓘ |
| containsExtinctMembers | true ⓘ |
| definedBy | node-based definition including Crocodylus niloticus and all archosaurs closer to it than to birds ⓘ |
| diagnosticFeature | specific ankle morphology distinguishing them from bird-line archosaurs ⓘ |
| ecologicalRoles |
armored herbivores (aetosaurs)
ⓘ
large terrestrial predators ⓘ semi-aquatic predators ⓘ |
| extantRepresentatives | Crocodylia NERFINISHED ⓘ |
| extinctionEventImpact | severely affected at end-Triassic mass extinction ⓘ |
| firstAppearance | Early Triassic period ⓘ |
| fossilRecord | well represented in Triassic strata ⓘ |
| higherClassification |
Diapsida
NERFINISHED
ⓘ
Reptilia (sensu lato) ⓘ Sauropsida NERFINISHED ⓘ |
| includes |
Aetosauria
NERFINISHED
ⓘ
Crocodylomorpha NERFINISHED ⓘ Ornithosuchidae NERFINISHED ⓘ Phytosauria (in some classifications) NERFINISHED ⓘ Poposauroidea NERFINISHED ⓘ Rauisuchidae NERFINISHED ⓘ Triassic predatory archosaurs ⓘ extinct crocodilian relatives ⓘ modern crocodilians ⓘ |
| locomotion |
bipedal in some poposauroids
ⓘ
quadrupedal in most taxa ⓘ |
| mostDiverseIn | Late Triassic ⓘ |
| notableMember |
Crocodylus niloticus
NERFINISHED
ⓘ
Desmatosuchus NERFINISHED ⓘ Postosuchus NERFINISHED ⓘ Saurosuchus NERFINISHED ⓘ |
| parentTaxon | Archosauria NERFINISHED ⓘ |
| partOf | Archosauria NERFINISHED ⓘ |
| peakDiversity | Triassic ⓘ |
| researchField | vertebrate paleontology ⓘ |
| sisterGroup | Avemetatarsalia NERFINISHED ⓘ |
| subdivision |
Aetosauria
NERFINISHED
ⓘ
Crocodyliformes ⓘ Ornithosuchidae NERFINISHED ⓘ ‘Rauisuchia’ (informal grouping) NERFINISHED ⓘ |
| survivingLineageAfterEndTriassic | crocodylomorphs ⓘ |
| taxonRank | subclade of Archosauria ⓘ |
| temporalRangeEnd | Recent ⓘ |
| temporalRangeStart | Early Triassic ⓘ |
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Crurotarsi
this entity surface form:
Ornithosuchidae