Lepidodendron
E569345
Lepidodendron is an extinct genus of giant, tree-like lycopsid plants that dominated Carboniferous coal swamp forests.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lepidodendrales | 1 |
| Lepidodendron canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6108896 — 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: Lepidodendron Context triple: [Joggins Fossil Cliffs, containsFossilsOf, Lepidodendron]
-
A.
Horneophyton lignieri
Horneophyton lignieri is an early Devonian land plant known from the Rhynie Chert, notable for its simple vascular structure and significance in understanding the evolution of terrestrial flora.
-
B.
Rhynia
Rhynia is an extinct genus of simple, leafless vascular plants from the Early Devonian period that represents one of the earliest well-preserved examples of land plant evolution.
-
C.
Asteroxylon mackiei
Asteroxylon mackiei is an early Devonian vascular land plant known from exceptionally well-preserved fossils that provide key insights into the evolution of plant structure and terrestrialization.
-
D.
Aglaophyton
Aglaophyton is an extinct early land plant from the Early Devonian period, known for its simple, leafless branching stems and importance in understanding the evolution of vascular plants.
-
E.
Cyathea
Cyathea is a large genus of tropical and subtropical tree ferns known for their tall trunks and feathery fronds, found in regions such as New Zealand, the Americas, and Southeast Asia.
- 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: Lepidodendron Target entity description: Lepidodendron is an extinct genus of giant, tree-like lycopsid plants that dominated Carboniferous coal swamp forests.
-
A.
Horneophyton lignieri
Horneophyton lignieri is an early Devonian land plant known from the Rhynie Chert, notable for its simple vascular structure and significance in understanding the evolution of terrestrial flora.
-
B.
Rhynia
Rhynia is an extinct genus of simple, leafless vascular plants from the Early Devonian period that represents one of the earliest well-preserved examples of land plant evolution.
-
C.
Asteroxylon mackiei
Asteroxylon mackiei is an early Devonian vascular land plant known from exceptionally well-preserved fossils that provide key insights into the evolution of plant structure and terrestrialization.
-
D.
Aglaophyton
Aglaophyton is an extinct early land plant from the Early Devonian period, known for its simple, leafless branching stems and importance in understanding the evolution of vascular plants.
-
E.
Cyathea
Cyathea is a large genus of tropical and subtropical tree ferns known for their tall trunks and feathery fronds, found in regions such as New Zealand, the Americas, and Southeast Asia.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
extinct genus
ⓘ
fossil plant genus ⓘ lycopsid ⓘ |
| associatedRootGenus | Stigmaria NERFINISHED ⓘ |
| barkType | periderm with leaf cushion pattern ⓘ |
| class | Lycopsida NERFINISHED ⓘ |
| contributedTo | formation of coal deposits ⓘ |
| distinguishedBy | rhombic leaf scar pattern ⓘ |
| distinguishedFrom | Sigillaria NERFINISHED ⓘ |
| division | Lycopodiophyta NERFINISHED ⓘ |
| dominantIn | Euramerican coal swamps ⓘ |
| etymology | from Greek for "scale tree" ⓘ |
| extinctionCause | climatic and environmental changes after Carboniferous ⓘ |
| family | Lepidodendraceae NERFINISHED ⓘ |
| firstAppearance | Mississippian subperiod ⓘ |
| fossilPart |
branches
ⓘ
cones ⓘ leaf cushions ⓘ roots ⓘ trunks ⓘ |
| fossilsFoundIn |
Asia
NERFINISHED
ⓘ
Europe NERFINISHED ⓘ North America NERFINISHED ⓘ |
| geologicalStatus | index fossil of Carboniferous coal measures ⓘ |
| growthForm | tree-like plant ⓘ |
| kingdom | Plantae ⓘ |
| lastAppearance | Pennsylvanian subperiod ⓘ |
| lifeCycle | rapid growth to maturity ⓘ |
| lifeSpan | relatively short-lived for a tree ⓘ |
| livedDuring | Carboniferous period NERFINISHED ⓘ |
| maximumHeight | up to about 30 metres ⓘ |
| maximumTrunkDiameter | up to about 1 metre ⓘ |
| namedBy | Adolphe Brongniart NERFINISHED ⓘ |
| order | Lepidodendrales NERFINISHED ⓘ |
| partOf | Carboniferous rainforest ecosystem NERFINISHED ⓘ |
| photosyntheticOrgans | microphylls ⓘ |
| photosyntheticPathway | C3 photosynthesis ⓘ |
| reproduction | spore-bearing cones ⓘ |
| reproductiveStructure | strobili ⓘ |
| rootSystem | stigmarian roots ⓘ |
| stemSurface | diamond-shaped leaf scars ⓘ |
| typeSpecies | Lepidodendron obovatum NERFINISHED ⓘ |
| typicalEnvironment | coal swamp forests ⓘ |
| usedIn |
paleoclimate reconstruction
ⓘ
stratigraphic correlation of coal seams ⓘ |
| woodType | primary xylem dominant ⓘ |
| yearDescribed | 1828 ⓘ |
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: Lepidodendron Description of subject: Lepidodendron is an extinct genus of giant, tree-like lycopsid plants that dominated Carboniferous coal swamp forests.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lepidodendrales