Solnhofen Limestone
E52674
Solnhofen Limestone is a famous Late Jurassic lithographic limestone formation in Bavaria, Germany, renowned for its exceptionally well-preserved fossils, including the iconic Archaeopteryx.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Solnhofen Limestone canonical | 4 |
| Solnhofen limestone | 2 |
| Solnhofen | 1 |
| Solnhofen Limestone deposition | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T415645 — 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: Solnhofen Limestone Context triple: [Jurassic Period, hasNotableFossilSite, Solnhofen Limestone]
-
A.
Tura limestone
Tura limestone is a fine white Egyptian limestone historically prized for its high quality and used as the outer casing stone for major monuments such as the Great Pyramid of Giza.
-
B.
Holston Formation
The Holston Formation is a geologic unit in eastern Tennessee renowned for its high-quality crystalline limestone commonly marketed as Tennessee marble and widely used in prominent architectural projects.
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C.
Bedford limestone
Bedford limestone is a high-quality, fine-grained building stone from southern Indiana widely used in prominent architectural landmarks across the United States.
-
D.
Anston limestone
Anston limestone is a durable, fine-grained building stone from Anston in South Yorkshire, England, historically quarried for major 19th-century architectural projects.
-
E.
Devonian Fossil Gorge
Devonian Fossil Gorge is an exposed ancient seabed near Iowa City where visitors can see well-preserved marine fossils from the Devonian period revealed by modern flood erosion.
- 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: Solnhofen Limestone Target entity description: Solnhofen Limestone is a famous Late Jurassic lithographic limestone formation in Bavaria, Germany, renowned for its exceptionally well-preserved fossils, including the iconic Archaeopteryx.
-
A.
Tura limestone
Tura limestone is a fine white Egyptian limestone historically prized for its high quality and used as the outer casing stone for major monuments such as the Great Pyramid of Giza.
-
B.
Holston Formation
The Holston Formation is a geologic unit in eastern Tennessee renowned for its high-quality crystalline limestone commonly marketed as Tennessee marble and widely used in prominent architectural projects.
-
C.
Bedford limestone
Bedford limestone is a high-quality, fine-grained building stone from southern Indiana widely used in prominent architectural landmarks across the United States.
-
D.
Anston limestone
Anston limestone is a durable, fine-grained building stone from Anston in South Yorkshire, England, historically quarried for major 19th-century architectural projects.
-
E.
Devonian Fossil Gorge
Devonian Fossil Gorge is an exposed ancient seabed near Iowa City where visitors can see well-preserved marine fossils from the Devonian period revealed by modern flood erosion.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Konservat-Lagerstätte
ⓘ
geologic formation ⓘ lithographic limestone ⓘ |
| climateAtDeposition | warm ⓘ |
| color |
cream
ⓘ
light beige ⓘ |
| contains |
arthropod fossils
ⓘ
cephalopod fossils ⓘ echinoderm fossils ⓘ fossil trackways ⓘ medusae fossils ⓘ |
| country | Germany ⓘ |
| depositionalEnvironment |
lagoonal
ⓘ
restricted marine basin ⓘ |
| diagenesis | low-grade diagenetic alteration ⓘ |
| economicUse |
building stone
ⓘ
lithographic stone ⓘ |
| formationType | carbonate platform deposit ⓘ |
| fossilContent |
Archaeopteryx
ⓘ
linked to:
Archaeopteryx lithographica
crustaceans ⓘ fish ⓘ insects ⓘ marine invertebrates ⓘ plants ⓘ pterosaurs ⓘ |
| fossilSiteType | type locality for Archaeopteryx lithographica ⓘ |
| geologicAge | Tithonian ⓘ |
| geologicPeriod | Late Jurassic ⓘ |
| geologicSystem | Jurassic ⓘ |
| grainSize | very fine-grained ⓘ |
| historicalUse | printing lithography ⓘ |
| knownFor |
Archaeopteryx specimens
ⓘ
exceptionally well-preserved fossils ⓘ preservation of soft tissues ⓘ |
| lithology |
fine-grained limestone
ⓘ
micritic limestone ⓘ platy limestone ⓘ |
| locatedIn |
Bavaria
ⓘ
Franconian Alb ⓘ |
| namedAfter |
Solnhofen
ⓘ
linked to:
Solnhofen Limestone
|
| oxygenConditions | anoxic bottom waters ⓘ |
| paleogeography | northern margin of the Tethys Ocean ⓘ |
| preservationType | exceptional fossil preservation ⓘ |
| region |
Altmühl Valley
ⓘ
linked to:
Altmühl
|
| researchImportance |
key site for study of Jurassic ecosystems
ⓘ
key site for study of bird origins ⓘ |
| sedimentaryStructure |
lamination
ⓘ
thin bedding ⓘ |
| stratigraphicUnitOf | Southern Germany Jurassic sequence ⓘ |
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: Solnhofen Limestone Description of subject: Solnhofen Limestone is a famous Late Jurassic lithographic limestone formation in Bavaria, Germany, renowned for its exceptionally well-preserved fossils, including the iconic Archaeopteryx.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Solnhofen Limestone
linked to: Solnhofen Limestone
linked to: Solnhofen Limestone
linked to: Solnhofen Limestone