Pteridinium
E221816
Pteridinium is an extinct, soft-bodied, frond-like organism from the late Ediacaran period, known from fossil impressions that help illuminate some of the earliest complex multicellular life on Earth.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pteridinium canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1966356 — 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: Pteridinium Context triple: [Ediacaran biota, includes, Pteridinium]
-
A.
Tribrachidium
Tribrachidium is an extinct, tri-radially symmetrical organism from the late Ediacaran period, known from fossil impressions that provide insight into some of the earliest complex multicellular life.
-
B.
Anesidora
Anesidora is an epithet of the Greek goddess Demeter that emphasizes her role as the giver of gifts, especially the bounty of the earth.
-
C.
Thlypopsis
Thlypopsis is a genus of small Neotropical tanagers known for their colorful plumage and association with forest and woodland habitats in Central and South America.
-
D.
Pleistrus
Pleistrus is a minor figure in Greek mythology known primarily as a son of Helen of Troy.
-
E.
Staurozoa
Staurozoa is a class of stalked jellyfish-like cnidarians characterized by their sessile, upside-down medusa form typically attached to substrates in cold, shallow marine waters.
- 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: Pteridinium Target entity description: Pteridinium is an extinct, soft-bodied, frond-like organism from the late Ediacaran period, known from fossil impressions that help illuminate some of the earliest complex multicellular life on Earth.
-
A.
Tribrachidium
Tribrachidium is an extinct, tri-radially symmetrical organism from the late Ediacaran period, known from fossil impressions that provide insight into some of the earliest complex multicellular life.
-
B.
Anesidora
Anesidora is an epithet of the Greek goddess Demeter that emphasizes her role as the giver of gifts, especially the bounty of the earth.
-
C.
Thlypopsis
Thlypopsis is a genus of small Neotropical tanagers known for their colorful plumage and association with forest and woodland habitats in Central and South America.
-
D.
Pleistrus
Pleistrus is a minor figure in Greek mythology known primarily as a son of Helen of Troy.
-
E.
Staurozoa
Staurozoa is a class of stalked jellyfish-like cnidarians characterized by their sessile, upside-down medusa form typically attached to substrates in cold, shallow marine waters.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Ediacaran biota
ⓘ
extinct organism ⓘ fossil taxon ⓘ |
| associatedWith | other Ediacaran frond-like taxa ⓘ |
| bodyPlan |
frond-like
ⓘ
soft-bodied ⓘ |
| classificationUncertainty | affinities debated ⓘ |
| discoveryContext | found in Ediacaran fossil assemblages ⓘ |
| ecologicalRole | sessile organism ⓘ |
| extinctionStatus | extinct ⓘ |
| feedingMode |
osmotroph (hypothesized)
ⓘ
suspension feeder (hypothesized) ⓘ |
| firstAppearance | late Ediacaran ⓘ |
| fossilEnvironment |
shallow marine settings
ⓘ
shelf environments ⓘ |
| fossilOrientation | often preserved lying flat on bedding planes ⓘ |
| fossilType | impression fossil ⓘ |
| geologicalAge | approximately 575–541 million years ago ⓘ |
| importance |
illuminates early complex multicellular life
ⓘ
key taxon of Ediacaran biota ⓘ |
| kingdom | Animalia ⓘ |
| knownFrom |
Canada
ⓘ
China ⓘ Ediacara Hills, South Australia ⓘ India ⓘ Mexico ⓘ Namibia ⓘ Russia ⓘ Ukraine ⓘ United States of America ⓘ
surface form:
United States
|
| lifestyle | benthic ⓘ |
| morphology |
leaf-like fronds
ⓘ
modular construction ⓘ serially repeated units ⓘ |
| phylum | incertae sedis ⓘ |
| possibleAffinity |
Vendobionta (historical hypothesis)
ⓘ
early animal (hypothesized) ⓘ |
| preservationType | fossil impressions ⓘ |
| researchTopic |
Ediacaran ecology
ⓘ
early multicellularity ⓘ origin of animals ⓘ |
| size | can reach tens of centimeters in length ⓘ |
| softTissue | lacked mineralized skeleton ⓘ |
| symmetry | glide reflection symmetry ⓘ |
| taxonomicStatus | genus ⓘ |
| temporalRange |
Ediacaran Period
ⓘ
surface form:
Ediacaran
|
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: Pteridinium Description of subject: Pteridinium is an extinct, soft-bodied, frond-like organism from the late Ediacaran period, known from fossil impressions that help illuminate some of the earliest complex multicellular life on Earth.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.