Acoela
E460531
Acoela are simple, small, worm-like marine animals lacking a true gut, considered among the most basal and primitive bilaterian animals.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Acoela canonical | 1 |
| Acoelomorpha | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4684301 — 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: Acoela Context triple: [Xenacoelomorpha, contains, Acoela]
-
A.
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.
-
B.
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.
-
C.
Placozoa
Placozoa is a phylum of simple, flat, millimeter-sized marine animals with only a few distinct cell types and no true tissues or organs, considered among the most basal and primitive of all multicellular animals.
-
D.
Enteropneusta
Enteropneusta is a class of marine hemichordates commonly known as acorn worms, characterized by their burrowing lifestyle and worm-like bodies with a distinct proboscis, collar, and trunk.
-
E.
Kinorhyncha
Kinorhyncha are a phylum of minute, segmented, marine invertebrates known as mud dragons, characterized by a spiny head and burrowing lifestyle in marine sediments.
- 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: Acoela Target entity description: Acoela are simple, small, worm-like marine animals lacking a true gut, considered among the most basal and primitive bilaterian animals.
-
A.
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.
-
B.
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.
-
C.
Placozoa
Placozoa is a phylum of simple, flat, millimeter-sized marine animals with only a few distinct cell types and no true tissues or organs, considered among the most basal and primitive of all multicellular animals.
-
D.
Enteropneusta
Enteropneusta is a class of marine hemichordates commonly known as acorn worms, characterized by their burrowing lifestyle and worm-like bodies with a distinct proboscis, collar, and trunk.
-
E.
Kinorhyncha
Kinorhyncha are a phylum of minute, segmented, marine invertebrates known as mud dragons, characterized by a spiny head and burrowing lifestyle in marine sediments.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
bilaterian
ⓘ
clade ⓘ worm-like animal ⓘ |
| anus | absent ⓘ |
| bodyPlan | acoelomate ⓘ |
| bodyShape | small flattened worms ⓘ |
| bodySize | typically less than 5 mm long ⓘ |
| bodySymmetry | bilateral symmetry ⓘ |
| contains |
genus Convoluta
ⓘ
genus Symsagittifera ⓘ numerous small meiofaunal species ⓘ |
| development | direct development without typical larval stage in many species ⓘ |
| diet |
microalgae
ⓘ
organic detritus ⓘ small invertebrates ⓘ |
| digestiveOpening | single mouth opening ⓘ |
| digestiveSystem | syncytial digestive vacuole ⓘ |
| distinguishedFromPlatyhelminthesBy |
different organization of nervous system
ⓘ
lack of protonephridia ⓘ molecular phylogenetic evidence ⓘ |
| epidermis | ciliated epidermis ⓘ |
| evolutionarySignificance | important for understanding early bilaterian evolution ⓘ |
| excretorySystem | lacks protonephridia ⓘ |
| feedingType |
detritivores
ⓘ
micro-predators ⓘ |
| fertilization | internal fertilization ⓘ |
| geographicDistribution | worldwide in marine environments ⓘ |
| germLayers | triploblastic ⓘ |
| habitat |
benthic environments
ⓘ
interstitial spaces in marine sediments ⓘ marine ⓘ |
| hasBodyCavity | no true body cavity ⓘ |
| hasBrain | no true brain ⓘ |
| hasCirculatorySystem | absent ⓘ |
| hasGut | no true gut ⓘ |
| hasRespiratorySystem | absent ⓘ |
| kingdom | Animalia ⓘ |
| locomotion | ciliary gliding ⓘ |
| musculature | well-developed body-wall muscles ⓘ |
| nervousSystem | simple nervous system ⓘ |
| nervousSystemOrganization | anterior concentration of neurons ⓘ |
| phylum | Xenacoelomorpha ⓘ |
| positionInBilateria | among the most basal bilaterian animals ⓘ |
| previouslyClassifiedAs |
Acoelomorpha
ⓘ
linked to:
Acoela
order of Platyhelminthes ⓘ |
| reproduction |
asexual reproduction by fission in some species
ⓘ
sexual reproduction ⓘ |
| researchUse |
model for studying body plan evolution
ⓘ
model for studying nervous system evolution ⓘ |
| symbiosis | some species host symbiotic algae ⓘ |
| taxonomicRank | subphylum-level group (historical usage) ⓘ |
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: Acoela Description of subject: Acoela are simple, small, worm-like marine animals lacking a true gut, considered among the most basal and primitive bilaterian animals.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Acoela