Chondrichthyes
E85554
Chondrichthyes is a class of cartilaginous fishes, including sharks, rays, and skates, characterized by skeletons made primarily of cartilage rather than bone.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Chondrichthyes canonical | 6 |
| Chondrichthyes (in some phylogenetic usages may be excluded or treated separately) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T696099 — 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: Chondrichthyes Context triple: [Vertebrata, includesTaxon, Chondrichthyes]
-
A.
Osteichthyes
Osteichthyes is a vast taxonomic group of bony fishes characterized by skeletons primarily composed of bone rather than cartilage, encompassing both ray-finned and lobe-finned fishes.
-
B.
Actinopterygii
Actinopterygii is the diverse class of ray-finned fishes that comprises the vast majority of modern fish species found in marine and freshwater environments.
-
C.
Acipenseriformes
Acipenseriformes is an order of primitive ray-finned fishes that includes sturgeons and paddlefishes, known for their cartilaginous skeletons and importance in caviar production.
-
D.
Polypteriformes
Polypteriformes is an ancient order of ray-finned fishes that includes bichirs and reedfish, known for their elongated bodies, ganoid scales, and ability to breathe air.
-
E.
Neopterygii
Neopterygii is a major clade of ray-finned fishes that includes most modern fish species, characterized by more advanced jaw mechanics and fin structures compared to more primitive actinopterygians.
- 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: Chondrichthyes Target entity description: Chondrichthyes is a class of cartilaginous fishes, including sharks, rays, and skates, characterized by skeletons made primarily of cartilage rather than bone.
-
A.
Osteichthyes
Osteichthyes is a vast taxonomic group of bony fishes characterized by skeletons primarily composed of bone rather than cartilage, encompassing both ray-finned and lobe-finned fishes.
-
B.
Actinopterygii
Actinopterygii is the diverse class of ray-finned fishes that comprises the vast majority of modern fish species found in marine and freshwater environments.
-
C.
Acipenseriformes
Acipenseriformes is an order of primitive ray-finned fishes that includes sturgeons and paddlefishes, known for their cartilaginous skeletons and importance in caviar production.
-
D.
Polypteriformes
Polypteriformes is an ancient order of ray-finned fishes that includes bichirs and reedfish, known for their elongated bodies, ganoid scales, and ability to breathe air.
-
E.
Neopterygii
Neopterygii is a major clade of ray-finned fishes that includes most modern fish species, characterized by more advanced jaw mechanics and fin structures compared to more primitive actinopterygians.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
group of cartilaginous fishes
ⓘ
taxonomic class ⓘ |
| bodyCovering | dermal denticles ⓘ |
| circulatorySystem | closed circulatory system ⓘ |
| commonName | cartilaginous fishes ⓘ |
| ecologicalRole |
mesopredators in marine ecosystems
ⓘ
top predators in marine ecosystems ⓘ |
| fertilizationType | internal fertilization ⓘ |
| firstAppearance | Devonian period ⓘ |
| habitat |
marine environments
ⓘ
some freshwater environments ⓘ |
| hasCharacteristic |
cartilaginous endoskeleton
ⓘ
cartilaginous vertebral column ⓘ electroreception via ampullae of Lorenzini in many species ⓘ heterocercal tail in many species ⓘ internal fertilization ⓘ lack of swim bladder ⓘ oily liver for buoyancy ⓘ placoid scales ⓘ spiral valve intestine ⓘ well-developed olfactory organs ⓘ |
| hasEconomicImportance |
commercial fisheries
ⓘ
ecotourism ⓘ recreational fisheries ⓘ |
| hasSubclass |
Elasmobranchii
ⓘ
Holocephali ⓘ |
| heartChambers | two-chambered heart ⓘ |
| includes |
chimaeras
ⓘ
rays ⓘ sharks ⓘ skates ⓘ |
| jawType | movable jaws ⓘ |
| kingdom | Animalia ⓘ |
| notableGroup |
Batoidea
ⓘ
Selachii ⓘ |
| phylum | Chordata ⓘ |
| reproductionMode |
oviparous in some species
ⓘ
ovoviviparous in some species ⓘ viviparous in some species ⓘ |
| respiration | gills ⓘ |
| sensorySystem | lateral line system ⓘ |
| skeletonContains | cartilage ⓘ |
| skeletonLacks | true bone ⓘ |
| skeletonType | cartilaginous skeleton ⓘ |
| subphylum | Vertebrata ⓘ |
| threatStatus |
many species threatened by bycatch
ⓘ
many species threatened by habitat degradation ⓘ many species threatened by overfishing ⓘ |
| timeOfOrigin | Paleozoic era ⓘ |
| toothType | replaceable teeth in many species ⓘ |
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: Chondrichthyes Description of subject: Chondrichthyes is a class of cartilaginous fishes, including sharks, rays, and skates, characterized by skeletons made primarily of cartilage rather than bone.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Chondrichthyes (in some phylogenetic usages may be excluded or treated separately)