Crustacea
E96843
Crustacea is a large subphylum of mostly aquatic arthropods that includes crabs, lobsters, shrimp, barnacles, and related species characterized by hard exoskeletons and jointed limbs.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Crustacea canonical | 33 |
How this entity was disambiguated
This entity first appeared as the object of triple T808326 — 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: Crustacea Context triple: [Arthropoda, includes, Crustacea]
-
A.
Malacostraca
Malacostraca is the largest and most diverse class of crustaceans, including crabs, lobsters, shrimp, krill, and many other familiar marine and freshwater species.
-
B.
Arthropoda
Arthropoda is the largest phylum of animals, comprising invertebrates with exoskeletons, segmented bodies, and jointed appendages such as insects, spiders, and crustaceans.
-
C.
Ecdysozoa
Ecdysozoa is a major animal clade of molting invertebrates that includes arthropods, nematodes, and several related phyla.
-
D.
Mollusca
Mollusca is a large and diverse phylum of invertebrate animals that includes snails, clams, squids, and octopuses, typically characterized by soft bodies often protected by a hard shell.
-
E.
Euphausiacea
Euphausiacea is an order of small, shrimp-like marine crustaceans known as krill, which form massive swarms and play a crucial role as primary consumers in ocean food webs.
- 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: Crustacea Target entity description: Crustacea is a large subphylum of mostly aquatic arthropods that includes crabs, lobsters, shrimp, barnacles, and related species characterized by hard exoskeletons and jointed limbs.
-
A.
Malacostraca
Malacostraca is the largest and most diverse class of crustaceans, including crabs, lobsters, shrimp, krill, and many other familiar marine and freshwater species.
-
B.
Arthropoda
Arthropoda is the largest phylum of animals, comprising invertebrates with exoskeletons, segmented bodies, and jointed appendages such as insects, spiders, and crustaceans.
-
C.
Ecdysozoa
Ecdysozoa is a major animal clade of molting invertebrates that includes arthropods, nematodes, and several related phyla.
-
D.
Mollusca
Mollusca is a large and diverse phylum of invertebrate animals that includes snails, clams, squids, and octopuses, typically characterized by soft bodies often protected by a hard shell.
-
E.
Euphausiacea
Euphausiacea is an order of small, shrimp-like marine crustaceans known as krill, which form massive swarms and play a crucial role as primary consumers in ocean food webs.
- F. None of above. chosen
Statements (64)
| Predicate | Object |
|---|---|
| instanceOf |
subphylum
ⓘ
taxon ⓘ |
| bodyDivision |
abdomen
ⓘ
head ⓘ thorax ⓘ |
| circulatorySystem | open circulatory system ⓘ |
| commonLarvalForm | nauplius larva ⓘ |
| development | often includes larval stages ⓘ |
| ecologicalRole |
detritivores
ⓘ
important zooplankton components ⓘ predators ⓘ primary consumers ⓘ |
| economicImportance |
major source of seafood
ⓘ
some species are pests ⓘ used in aquaculture feed ⓘ |
| exoskeletonComposition |
chitin
ⓘ
often calcified ⓘ |
| feedingMode |
filter feeding (in many species)
ⓘ
predation (in many species) ⓘ scavenging (in many species) ⓘ |
| firstAppearance |
Cambrian period
ⓘ
linked to:
Cambrian Period
|
| fossilRecord | rich fossil record in marine sediments ⓘ |
| hasCharacteristic |
bilateral symmetry
ⓘ
chitinous cuticle ⓘ compound eyes (often on stalks) ⓘ hard exoskeleton ⓘ jointed appendages ⓘ many freshwater species ⓘ many marine species ⓘ molts exoskeleton ⓘ mostly aquatic ⓘ paired appendages ⓘ segmented body ⓘ some terrestrial species ⓘ usually two pairs of antennae ⓘ |
| hasSubgroup |
Branchiopoda
ⓘ
Cephalocarida ⓘ Malacostraca ⓘ Maxillopoda ⓘ Ostracoda ⓘ Remipedia ⓘ |
| includes |
amphipods
ⓘ
barnacles ⓘ copepods ⓘ crabs ⓘ fairy shrimp ⓘ isopods ⓘ krill ⓘ lobsters ⓘ shrimp ⓘ water fleas (Daphnia) ⓘ woodlice ⓘ |
| isA |
aquatic invertebrate group
ⓘ
arthropod group ⓘ |
| kingdom | Animalia ⓘ |
| locomotion |
swimming with specialized appendages
ⓘ
walking with thoracic legs ⓘ |
| nervousSystem | ventral nerve cord with ganglia ⓘ |
| phylum | Arthropoda ⓘ |
| reproduction | mostly sexual reproduction ⓘ |
| respiration | usually via gills ⓘ |
| skeletonType | exoskeleton ⓘ |
| taxonRank | subphylum ⓘ |
| typicalBodyPlan | cephalothorax plus abdomen ⓘ |
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: Crustacea Description of subject: Crustacea is a large subphylum of mostly aquatic arthropods that includes crabs, lobsters, shrimp, barnacles, and related species characterized by hard exoskeletons and jointed limbs.
Referenced by (33)
Full triples — surface form annotated when it differs from this entity's canonical label.