Chondrichthyes

E85554

group of cartilaginous fishes taxonomic class

Chondrichthyes is a class of cartilaginous fishes, including sharks, rays, and skates, characterized by skeletons made primarily of cartilage rather than bone.

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All labels observed (2)

Label	Occurrences
Chondrichthyes canonical	6
Chondrichthyes (in some phylogenetic usages may be excluded or treated separately)	1

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.

Vertebrata → includesTaxon → Chondrichthyes ⓘ

Gnathostomata → includes → Chondrichthyes ⓘ

Galapagos shark → class → Chondrichthyes ⓘ

Elasmobranchii → class → Chondrichthyes ⓘ

Holocephali → class → Chondrichthyes ⓘ

Holocephali → partOf → Chondrichthyes ⓘ

Eugnathostomata → includesGroup → Chondrichthyes ⓘ

this entity surface form: Chondrichthyes (in some phylogenetic usages may be excluded or treated separately)