Cephalocarida

E429662

Cephalocarida are a small, primitive class of benthic marine crustaceans characterized by their simple body plan and importance for understanding crustacean evolution.

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All labels observed (1)

Label Occurrences
Cephalocarida canonical 1

Statements (47)

Predicate Object
instanceOf class of crustaceans
taxon
appendages numerous similar trunk limbs
bodyPlan elongated body
homonomous trunk segments
lack of carapace
segmented body
bodySymmetry bilateral symmetry
cephalon poorly differentiated from trunk
commonName horseshoe shrimps
contains Hutchinsoniella macracantha NERFINISHED
Lightiella floridana NERFINISHED
Lightiella incisa NERFINISHED
Lightiella magdalenina NERFINISHED
Lightiella monniotae NERFINISHED
Lightiella serendipita NERFINISHED
describedBy Howard L. Sanders NERFINISHED
development direct development
distribution worldwide oceans
ecologicalRole benthic detritivore
environment saltwater
extant true
eyeType lacking compound eyes
feedingType deposit feeder
suspension feeder
gutType simple straight gut
habitat benthic zone
marine
importance important for understanding crustacean evolution
kingdom Animalia
larvalStage absence of distinct larval stage
locomotion swimming with trunk appendages
microhabitat interstitial spaces in marine sediments
phylum Arthropoda NERFINISHED
rank class
reproduction sexual reproduction
researchUse model for primitive crustacean morphology
respiration through body surface and appendages
scientificNameAuthorship Sanders, 1955
sensorySystem reduced eyes or absence of eyes
size a few millimetres in length
subphylum Crustacea NERFINISHED
substrateAssociation soft sediments
temperaturePreference mostly temperate to cold waters
trophicLevel detritivore
primary consumer
yearDescribed 1955

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: Cephalocarida
Description of subject: Cephalocarida are a small, primitive class of benthic marine crustaceans characterized by their simple body plan and importance for understanding crustacean evolution.

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Crustacea hasSubgroup Cephalocarida