Priapulida
E400810
Priapulida is a small phylum of unsegmented, burrowing marine worms known for their cylindrical, eversible proboscis and occurrence in soft seafloor sediments.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Priapulida canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T3927075 — 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: Priapulida Context triple: [Ecdysozoa, contains, Priapulida]
-
A.
Sipuncula
Sipuncula, commonly known as peanut worms, are a small phylum of unsegmented marine worms characterized by a retractable introvert and burrowing lifestyle in soft sediments or rock crevices.
-
B.
Nemertea
Nemertea, commonly known as ribbon worms, is a phylum of mostly marine, elongated, often brightly colored worms distinguished by their unique eversible proboscis used for hunting.
-
C.
Ambulacraria
Ambulacraria is a major clade of deuterostome animals that unites echinoderms (such as starfish and sea urchins) with hemichordates (such as acorn worms) based on shared developmental and anatomical features.
-
D.
Pycnoidei
Pycnoidei is a suborder of marine ray-finned fishes within the order Scorpaeniformes, comprising various bottom-dwelling, often spiny species.
-
E.
Brachiopoda
Brachiopoda is a phylum of marine invertebrates with bivalve-like shells that are hinged top-to-bottom and are known from both modern oceans and an extensive fossil record.
- 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: Priapulida Target entity description: Priapulida is a small phylum of unsegmented, burrowing marine worms known for their cylindrical, eversible proboscis and occurrence in soft seafloor sediments.
-
A.
Sipuncula
Sipuncula, commonly known as peanut worms, are a small phylum of unsegmented marine worms characterized by a retractable introvert and burrowing lifestyle in soft sediments or rock crevices.
-
B.
Nemertea
Nemertea, commonly known as ribbon worms, is a phylum of mostly marine, elongated, often brightly colored worms distinguished by their unique eversible proboscis used for hunting.
-
C.
Ambulacraria
Ambulacraria is a major clade of deuterostome animals that unites echinoderms (such as starfish and sea urchins) with hemichordates (such as acorn worms) based on shared developmental and anatomical features.
-
D.
Pycnoidei
Pycnoidei is a suborder of marine ray-finned fishes within the order Scorpaeniformes, comprising various bottom-dwelling, often spiny species.
-
E.
Brachiopoda
Brachiopoda is a phylum of marine invertebrates with bivalve-like shells that are hinged top-to-bottom and are known from both modern oceans and an extensive fossil record.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
phylum
ⓘ
taxon ⓘ |
| bodyPlan | unsegmented ⓘ |
| bodySymmetry | bilateral symmetry ⓘ |
| bodyWall | muscular body wall ⓘ |
| circulatorySystem | lacking discrete circulatory system ⓘ |
| clade | Ecdysozoa ⓘ |
| coelomType | pseudocoelomate ⓘ |
| commonName |
penis worms
ⓘ
priapulid worms ⓘ |
| contains |
Halicryptus spinulosus
ⓘ
Priapulus caudatus ⓘ |
| cuticleType | chitinous cuticle ⓘ |
| development | indirect development ⓘ |
| digestiveSystem | complete gut ⓘ |
| distribution | worldwide in marine sediments ⓘ |
| ecologicalRole |
bioturbator
ⓘ
infaunal predator ⓘ |
| feedingType |
carnivorous
ⓘ
predatory ⓘ |
| fertilization | external fertilization ⓘ |
| firstAppearance |
Cambrian period
ⓘ
linked to:
Cambrian Period
|
| fossilRecord | well represented in Cambrian Lagerstätten ⓘ |
| habitat |
marine environment
ⓘ
soft seafloor sediments ⓘ |
| hasBodyPart |
caudal appendages
ⓘ
eversible proboscis ⓘ introvert ⓘ trunk ⓘ |
| higherClassification | Protostomia ⓘ |
| kingdom | Animalia ⓘ |
| larvalType | loricate larva ⓘ |
| lifestyle | burrowing ⓘ |
| molting | ecdysis ⓘ |
| nervousSystem |
circumpharyngeal nerve ring
ⓘ
ventral nerve cord ⓘ |
| notableFossilLocality |
Burgess Shale
ⓘ
linked to:
Burgess Shale fossil lagerstätte
Chengjiang biota ⓘ |
| proboscisFunction | feeding and burrowing ⓘ |
| proboscisMorphology | cylindrical and eversible ⓘ |
| reproduction | sexual reproduction ⓘ |
| researchUse |
indicator of Cambrian predator-prey systems
ⓘ
model for early ecdysozoan evolution ⓘ |
| respiration | diffusion through body wall ⓘ |
| sizeRange | a few millimeters to about 20 centimeters ⓘ |
| skeletonType | hydrostatic skeleton ⓘ |
| superphylum | Ecdysozoa ⓘ |
| taxonomicRank | phylum ⓘ |
| temperaturePreference | mostly cold and temperate waters ⓘ |
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: Priapulida Description of subject: Priapulida is a small phylum of unsegmented, burrowing marine worms known for their cylindrical, eversible proboscis and occurrence in soft seafloor sediments.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.