Platysternidae
E316462
Platysternidae is a small family of freshwater turtles best known for the big-headed turtle (Platysternon megacephalum), a species with an unusually large head and long tail found in fast-flowing streams of Southeast Asia.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Platysternidae canonical | 1 |
| Platysternon | 1 |
| Platysternon megacephalum | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2984915 — 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: Platysternidae Context triple: [Testudinoidea, includesTaxon, Platysternidae]
-
A.
Plotosidae
Plotosidae is a family of eel-tailed catfishes known for their elongated bodies and often venomous fin spines, found primarily in marine and freshwater habitats of the Indo-Pacific region.
-
B.
Platycephalidae
Platycephalidae is a family of marine ray-finned fishes commonly known as flatheads, characterized by their flattened heads and bottom-dwelling habits in coastal waters.
-
C.
Gyrinocheilidae
Gyrinocheilidae is a family of freshwater fishes commonly known as sucking or algae-eating loaches, characterized by their specialized mouths adapted for grazing on surfaces.
-
D.
Scleropages formosus
Scleropages formosus is a Southeast Asian freshwater fish species, commonly known as the Asian arowana, prized in the aquarium trade for its metallic scales and cultural association with luck and prosperity.
-
E.
Heteropneustidae
Heteropneustidae is a family of air-breathing catfishes known for their elongated bodies and ability to survive in low-oxygen freshwater habitats.
- 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: Platysternidae Target entity description: Platysternidae is a small family of freshwater turtles best known for the big-headed turtle (Platysternon megacephalum), a species with an unusually large head and long tail found in fast-flowing streams of Southeast Asia.
-
A.
Plotosidae
Plotosidae is a family of eel-tailed catfishes known for their elongated bodies and often venomous fin spines, found primarily in marine and freshwater habitats of the Indo-Pacific region.
-
B.
Platycephalidae
Platycephalidae is a family of marine ray-finned fishes commonly known as flatheads, characterized by their flattened heads and bottom-dwelling habits in coastal waters.
-
C.
Gyrinocheilidae
Gyrinocheilidae is a family of freshwater fishes commonly known as sucking or algae-eating loaches, characterized by their specialized mouths adapted for grazing on surfaces.
-
D.
Scleropages formosus
Scleropages formosus is a Southeast Asian freshwater fish species, commonly known as the Asian arowana, prized in the aquarium trade for its metallic scales and cultural association with luck and prosperity.
-
E.
Heteropneustidae
Heteropneustidae is a family of air-breathing catfishes known for their elongated bodies and ability to survive in low-oxygen freshwater habitats.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
reptile family
ⓘ
taxonomic family ⓘ turtle family ⓘ |
| activityPattern | primarily nocturnal ⓘ |
| characteristic |
adapted to lotic environments
ⓘ
large head relative to body size ⓘ long tail ⓘ |
| class | Reptilia ⓘ |
| commonName | big-headed turtle family ⓘ |
| conservationConcern |
threatened by habitat loss
ⓘ
threatened by overcollection for pet trade ⓘ |
| containsGenus |
Platysternidae
self-linksurface differs
ⓘ
surface form:
Platysternon
|
| containsTaxon |
Platysternidae
self-linksurface differs
ⓘ
surface form:
Platysternon megacephalum
|
| diet |
carnivorous
ⓘ
insectivorous ⓘ molluscivorous ⓘ |
| distributionRegion |
Himalayan foothills region
ⓘ
surface form:
Himalayan foothills
Indochinese Peninsula ⓘ
surface form:
Indochina
southern China ⓘ |
| ecologicalNiche | stream-dwelling turtle ⓘ |
| feedingBehavior | benthic forager ⓘ |
| habitat |
fast-flowing streams
ⓘ
freshwater ⓘ |
| includesSpecies |
Platysternon megacephalum megacephalum
ⓘ
Platysternon megacephalum megacephalum ⓘ
surface form:
Platysternon megacephalum peguense
Platysternon megacephalum megacephalum ⓘ
surface form:
Platysternon megacephalum shiui
Platysternon megacephalum megacephalum ⓘ
surface form:
Platysternon megacephalum tristernalis
|
| kingdom | Animalia ⓘ |
| locomotion |
aquatic
ⓘ
climbing ⓘ |
| nativeTo |
Cambodia
ⓘ
China ⓘ Laos ⓘ Malaysia ⓘ Myanmar ⓘ Southeast Asia ⓘ Thailand ⓘ Viet Nam ⓘ
surface form:
Vietnam
|
| order | Testudines ⓘ |
| phylum | Chordata ⓘ |
| recognizedBy | modern herpetology ⓘ |
| reproduction | oviparous ⓘ |
| shellType | hard-shelled ⓘ |
| suborder | Cryptodira ⓘ |
| taxonomicStatus | monotypic family ⓘ |
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: Platysternidae Description of subject: Platysternidae is a small family of freshwater turtles best known for the big-headed turtle (Platysternon megacephalum), a species with an unusually large head and long tail found in fast-flowing streams of Southeast Asia.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Platysternon megacephalum
this entity surface form:
Platysternon