Tiaojishan Formation
E721121
The Tiaojishan Formation is a Middle to Late Jurassic geological formation in northeastern China renowned for its exceptionally well-preserved fossils, including early mammals, dinosaurs, and other vertebrates.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Daohugou beds | 1 |
| Haifanggou Formation | 1 |
| Tiaojishan Formation canonical | 1 |
| Yanliao Biota | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8255861 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tiaojishan Formation Context triple: [Juramaia, formation, Tiaojishan Formation]
-
A.
Djadokhta Formation
The Djadokhta Formation is a Late Cretaceous sedimentary rock unit in Mongolia renowned for its exceptionally well-preserved dinosaur fossils, including iconic theropods and other desert-adapted fauna.
-
B.
Barun Goyot Formation
The Barun Goyot Formation is a Late Cretaceous sedimentary rock formation in Mongolia renowned for its rich fossil beds, including remains of the dinosaur Velociraptor.
-
C.
Areyonga Formation
The Areyonga Formation is a geological rock unit within central Australia's Amadeus Basin, known for its sedimentary sequences that record Proterozoic environmental and tectonic history.
-
D.
Kaiparowits Formation
The Kaiparowits Formation is a Late Cretaceous rock unit in southern Utah renowned for its exceptionally rich and diverse dinosaur and vertebrate fossil assemblages.
-
E.
Miaolingian
Miaolingian is a middle subdivision of the Cambrian Period characterized by significant diversification of marine life and important trilobite-bearing rock formations.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tiaojishan Formation Target entity description: The Tiaojishan Formation is a Middle to Late Jurassic geological formation in northeastern China renowned for its exceptionally well-preserved fossils, including early mammals, dinosaurs, and other vertebrates.
-
A.
Djadokhta Formation
The Djadokhta Formation is a Late Cretaceous sedimentary rock unit in Mongolia renowned for its exceptionally well-preserved dinosaur fossils, including iconic theropods and other desert-adapted fauna.
-
B.
Barun Goyot Formation
The Barun Goyot Formation is a Late Cretaceous sedimentary rock formation in Mongolia renowned for its rich fossil beds, including remains of the dinosaur Velociraptor.
-
C.
Areyonga Formation
The Areyonga Formation is a geological rock unit within central Australia's Amadeus Basin, known for its sedimentary sequences that record Proterozoic environmental and tectonic history.
-
D.
Kaiparowits Formation
The Kaiparowits Formation is a Late Cretaceous rock unit in southern Utah renowned for its exceptionally rich and diverse dinosaur and vertebrate fossil assemblages.
-
E.
Miaolingian
Miaolingian is a middle subdivision of the Cambrian Period characterized by significant diversification of marine life and important trilobite-bearing rock formations.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
fossil-bearing stratigraphic unit
ⓘ
geological formation ⓘ |
| age | approximately 165–153 million years ago ⓘ |
| containsFossil |
Anchiornis
ⓘ
Aurornis ⓘ
linked to:
Anchiornis
Darwinopterus ⓘ Docodonta ⓘ Haramiyavia-like mammaliaforms ⓘ Multituberculata ⓘ Pedopenna ⓘ Xiaotingia ⓘ basal mammaliaforms ⓘ conchostracans ⓘ freshwater fishes ⓘ ostracods ⓘ salamanders ⓘ |
| country | China ⓘ |
| depositionalEnvironment |
fluvial
ⓘ
lacustrine ⓘ |
| environment | volcanically influenced terrestrial environment ⓘ |
| fossilPreservation | Lagerstätte-type preservation ⓘ |
| geologicalPeriod |
Late Jurassic
ⓘ
Middle Jurassic ⓘ |
| knownFor |
amphibians
ⓘ
dinosaurs ⓘ early mammals ⓘ exceptionally preserved fossils ⓘ insects ⓘ lizards ⓘ plants ⓘ pterosaurs ⓘ |
| lithology |
tuff
ⓘ
tuffaceous sandstone ⓘ tuffaceous shale ⓘ volcanic rocks ⓘ |
| locatedIn |
Beijing Municipality
ⓘ
linked to:
Beijing
Hebei Province ⓘ
linked to:
Hebei
Liaoning Province ⓘ
linked to:
Liaoning
northeastern China ⓘ |
| notableSite |
Daohugou beds
ⓘ
linked to:
Tiaojishan Formation
Linglongta locality ⓘ |
| overlies |
Haifanggou Formation
ⓘ
linked to:
Tiaojishan Formation
|
| paleoclimate | humid temperate ⓘ |
| partOf |
Yanliao Biota
ⓘ
linked to:
Tiaojishan Formation
|
| region | Yan Mountains ⓘ |
| significance |
important for early evolution of birds and bird-like dinosaurs
ⓘ
important for early mammal evolution studies ⓘ |
| stratigraphicUnitOf | North China Craton ⓘ |
| underlies | Tuchengzi Formation ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Tiaojishan Formation Description of subject: The Tiaojishan Formation is a Middle to Late Jurassic geological formation in northeastern China renowned for its exceptionally well-preserved fossils, including early mammals, dinosaurs, and other vertebrates.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tiaojishan Formation
linked to: Tiaojishan Formation
linked to: Tiaojishan Formation