Ischigualasto Formation
E893292
The Ischigualasto Formation is a Late Triassic geological formation in northwestern Argentina renowned for its exceptionally well-preserved early dinosaur and vertebrate fossils.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
fossil-bearing stratigraphic unit
ⓘ
geological formation ⓘ |
| age | Carnian NERFINISHED ⓘ |
| associatedWith | Ischigualasto Provincial Park NERFINISHED ⓘ |
| chronostratigraphicSignificance |
key reference for Late Triassic terrestrial faunas
ⓘ
records early diversification of dinosaurs ⓘ |
| containsFossilsOf |
Chromogisaurus
NERFINISHED
ⓘ
Eoraptor NERFINISHED ⓘ Exaeretodon NERFINISHED ⓘ Herrerasaurus NERFINISHED ⓘ Hyperodapedon NERFINISHED ⓘ Panphagia NERFINISHED ⓘ Proterochampsia NERFINISHED ⓘ Sanjuansaurus NERFINISHED ⓘ aetosaurians ⓘ cynodonts ⓘ dicynodonts ⓘ early dinosaurs ⓘ early mammal relatives ⓘ non-dinosaurian archosaurs ⓘ phytosaurs ⓘ rhynchosaurs ⓘ synapsids ⓘ temnospondyls ⓘ |
| country | Argentina ⓘ |
| discoveredBy | Argentine geologists ⓘ |
| environmentOfDeposition |
fluvial
ⓘ
volcanically influenced floodplain ⓘ |
| geologicalPeriod | Late Triassic ⓘ |
| hasColor | variegated red beds ⓘ |
| hasThickness | hundreds of meters ⓘ |
| locatedIn |
San Juan Province
NERFINISHED
ⓘ
northwestern Argentina ⓘ |
| namedAfter | Ischigualasto region NERFINISHED ⓘ |
| notableFor | one of the oldest known dinosaur assemblages ⓘ |
| otherLithology |
conglomerate
ⓘ
volcaniclastic rock ⓘ |
| overlies | Los Rastros Formation NERFINISHED ⓘ |
| partOf | Ischigualasto-Villa Unión Basin NERFINISHED ⓘ |
| preservationQuality | exceptional ⓘ |
| primaryLithology |
mudstone
ⓘ
sandstone ⓘ |
| stratigraphicUnitOf | Ischigualasto Provincial Park NERFINISHED ⓘ |
| tectonicSetting | rift basin ⓘ |
| timeSpan | approximately 231–225 million years ago ⓘ |
| underlies | Los Colorados Formation NERFINISHED ⓘ |
| worldFameFor |
early dinosaur fossils
ⓘ
exceptionally well-preserved vertebrate fossils ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.