Echinodermata
E12809
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.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Echinodermata canonical | 7 |
| Crinoidea | 1 |
| Holothuroidea | 1 |
| Ophiuroidea | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T72397 — 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: Echinodermata Context triple: [Animalia, includesPhylum, Echinodermata]
-
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.
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.
-
C.
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.
-
D.
Artiodactyla
Artiodactyla is a large order of even-toed hoofed mammals that includes animals such as deer, cattle, pigs, and camels.
-
E.
Oreortyx
Oreortyx is a small genus of New World quails best known for the mountain quail, a ground-dwelling game bird native to western North America.
- 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: Echinodermata Target entity description: 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.
-
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.
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.
-
C.
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.
-
D.
Artiodactyla
Artiodactyla is a large order of even-toed hoofed mammals that includes animals such as deer, cattle, pigs, and camels.
-
E.
Oreortyx
Oreortyx is a small genus of New World quails best known for the mountain quail, a ground-dwelling game bird native to western North America.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
phylum
ⓘ
taxonomic rank ⓘ |
| characteristic |
bilateral symmetry in larvae
ⓘ
calcareous endoskeleton ⓘ coelomate body plan ⓘ deuterostome development ⓘ lack of cephalization ⓘ marine invertebrates ⓘ mostly benthic lifestyle ⓘ ossicles in body wall ⓘ pentaradial symmetry in adults ⓘ regenerative abilities ⓘ tube feet ⓘ water vascular system ⓘ |
| circulatoryFeature | lack of true blood vascular system ⓘ |
| circulatorySystem | water vascular system for locomotion and feeding ⓘ |
| commonName | echinoderms ⓘ |
| domain |
Eukaryota
ⓘ
linked to:
Eukarya
|
| ecologicalRole |
bioturbation of sediments
ⓘ
grazers on algae and biofilms ⓘ important benthic ecosystem engineers ⓘ |
| etymology | from Greek 'echinos' (spiny) and 'derma' (skin) ⓘ |
| feedingModes |
deposit feeding
ⓘ
predation ⓘ scavenging ⓘ suspension feeding ⓘ |
| fossilRecord | well represented in Paleozoic and later marine sediments ⓘ |
| gasExchange | via tube feet and body surfaces ⓘ |
| habitat |
deep sea
ⓘ
intertidal zones ⓘ marine environments only ⓘ |
| includesClass |
Asteroidea
ⓘ
Crinoidea ⓘ
linked to:
Echinodermata
Echinoidea ⓘ Holothuroidea ⓘ
linked to:
Echinodermata
Ophiuroidea ⓘ
linked to:
Echinodermata
|
| includesOrganismType |
basket stars
ⓘ
brittle stars ⓘ sand dollars ⓘ sea cucumbers ⓘ sea stars ⓘ sea urchins ⓘ starfish ⓘ |
| kingdom | Animalia ⓘ |
| larvalSymmetry | bilateral symmetry ⓘ |
| nervousSystem | decentralized nervous system without true brain ⓘ |
| notableFeature |
ability to evert stomach in some starfish
ⓘ
evisceration defense in some sea cucumbers ⓘ |
| reproduction |
mostly sexual reproduction with external fertilization
ⓘ
some asexual reproduction by fragmentation ⓘ |
| sisterGroup | Hemichordata within deuterostomes ⓘ |
| skeletonType | endoskeleton of calcium carbonate ⓘ |
| symmetry | radial symmetry in adults ⓘ |
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: Echinodermata Description of subject: 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.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Echinodermata
linked to: Echinodermata
linked to: Echinodermata