Cephalochordata
E14432
Cephalochordata is a subphylum of small, fish-like marine animals (such as lancelets) that retain a notochord throughout life and are important for understanding vertebrate evolution.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Cephalochordata canonical | 7 |
| Amphioxiformes | 1 |
| Amphioxus | 1 |
| Branchiostoma | 1 |
| Branchiostomidae | 1 |
| cephalochordates | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T111528 — 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: Cephalochordata Context triple: [Chordata, includes, Cephalochordata]
-
A.
Chordata
Chordata is a major animal phylum that includes all vertebrates and their closest invertebrate relatives, characterized by having a notochord at some stage of development.
-
B.
Echinodermata
Echinodermata is a phylum of marine invertebrates that includes starfish, sea urchins, sand dollars, and sea cucumbers, characterized by radial symmetry and a water vascular system.
-
C.
Vertebrata
Vertebrata is a major subphylum of chordates comprising animals with backbones or spinal columns, including fishes, amphibians, reptiles, birds, and mammals.
-
D.
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.
-
E.
Animalia
Animalia is the biological kingdom comprising all multicellular animals, characterized by eukaryotic, heterotrophic organisms that typically have specialized tissues and the ability to move.
- 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: Cephalochordata Target entity description: Cephalochordata is a subphylum of small, fish-like marine animals (such as lancelets) that retain a notochord throughout life and are important for understanding vertebrate evolution.
-
A.
Chordata
Chordata is a major animal phylum that includes all vertebrates and their closest invertebrate relatives, characterized by having a notochord at some stage of development.
-
B.
Echinodermata
Echinodermata is a phylum of marine invertebrates that includes starfish, sea urchins, sand dollars, and sea cucumbers, characterized by radial symmetry and a water vascular system.
-
C.
Vertebrata
Vertebrata is a major subphylum of chordates comprising animals with backbones or spinal columns, including fishes, amphibians, reptiles, birds, and mammals.
-
D.
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.
-
E.
Animalia
Animalia is the biological kingdom comprising all multicellular animals, characterized by eukaryotic, heterotrophic organisms that typically have specialized tissues and the ability to move.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
subphylum
ⓘ
taxon ⓘ |
| behavior | burrowing ⓘ |
| bodyPlan | bilaterally symmetrical ⓘ |
| bodyShape |
elongated
ⓘ
fish-like ⓘ |
| circulatorySystem | closed circulatory system ⓘ |
| closelyRelatedTo | Vertebrata ⓘ |
| coelomType | coelomate ⓘ |
| commonName |
cephalochordates
ⓘ
linked to:
Cephalochordata
lancelets ⓘ |
| contains |
Asymmetron
ⓘ
Branchiostomidae ⓘ
linked to:
Cephalochordata
Epigonichthys ⓘ |
| describedBy | William Bateson ⓘ |
| developmentType | indirect development ⓘ |
| distinctFrom |
Urochordata
ⓘ
Vertebrata ⓘ |
| environment | benthic ⓘ |
| feedingMode | suspension feeding ⓘ |
| feedingStructure | pharyngeal basket ⓘ |
| fertilizationType | external fertilization ⓘ |
| firstDescribedYear | 1885 ⓘ |
| gasExchange | across body surface ⓘ |
| geographicDistribution | worldwide in shallow seas ⓘ |
| habitat | marine ⓘ |
| hasDistinctHead | false ⓘ |
| hasDorsalNerveCord | true ⓘ |
| hasPharyngealSlits | true ⓘ |
| hasPostAnalTail | true ⓘ |
| hasSegmentedMuscles | true ⓘ |
| hasVertebralColumn | false ⓘ |
| heartPresence | no true heart ⓘ |
| importance | key group for understanding vertebrate evolution ⓘ |
| includes |
Amphioxus
ⓘ
linked to:
Cephalochordata
Branchiostoma ⓘ
linked to:
Cephalochordata
|
| kingdom | Animalia ⓘ |
| larvalStage | present ⓘ |
| lifestyle | filter feeder ⓘ |
| notochordPresence | throughout life ⓘ |
| phylogeneticPosition | basal chordate ⓘ |
| phylum | Chordata ⓘ |
| reproduction | sexual ⓘ |
| researchUse |
model for chordate development
ⓘ
model for evolution of vertebrate body plan ⓘ |
| sizeRange | a few centimeters long ⓘ |
| skeletonType | notochord ⓘ |
| substratePreference | sandy bottoms ⓘ |
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: Cephalochordata Description of subject: Cephalochordata is a subphylum of small, fish-like marine animals (such as lancelets) that retain a notochord throughout life and are important for understanding vertebrate evolution.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Cephalochordata
linked to: Cephalochordata
linked to: Cephalochordata
linked to: Cephalochordata
linked to: Cephalochordata