Anaspida
E414613
Anaspida is an extinct group of jawless, armored fishes known from the Silurian and Devonian periods, characterized by streamlined bodies and bony head shields.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Anaspida canonical | 5 |
| Galeaspida | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4138795 — 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: Anaspida Context triple: [Agnatha, includesExtinctGroup, Anaspida]
-
A.
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.
-
B.
Priapulida
Priapulida is a small phylum of unsegmented, burrowing marine worms known for their cylindrical, eversible proboscis and occurrence in soft seafloor sediments.
-
C.
Micrognathozoa
Micrognathozoa is a tiny, jaw-bearing group of microscopic invertebrates known from freshwater habitats and notable for their complex feeding apparatus and uncertain placement among other animal phyla.
-
D.
Pycnoidei
Pycnoidei is a suborder of marine ray-finned fishes within the order Scorpaeniformes, comprising various bottom-dwelling, often spiny species.
-
E.
Loricifera
Loricifera are tiny, sediment-dwelling marine invertebrates known for their protective lorica (armor-like casing) and for including species that can live entirely without oxygen.
- 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: Anaspida Target entity description: Anaspida is an extinct group of jawless, armored fishes known from the Silurian and Devonian periods, characterized by streamlined bodies and bony head shields.
-
A.
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.
-
B.
Priapulida
Priapulida is a small phylum of unsegmented, burrowing marine worms known for their cylindrical, eversible proboscis and occurrence in soft seafloor sediments.
-
C.
Micrognathozoa
Micrognathozoa is a tiny, jaw-bearing group of microscopic invertebrates known from freshwater habitats and notable for their complex feeding apparatus and uncertain placement among other animal phyla.
-
D.
Pycnoidei
Pycnoidei is a suborder of marine ray-finned fishes within the order Scorpaeniformes, comprising various bottom-dwelling, often spiny species.
-
E.
Loricifera
Loricifera are tiny, sediment-dwelling marine invertebrates known for their protective lorica (armor-like casing) and for including species that can live entirely without oxygen.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
agnathan
ⓘ
extinct jawless fish clade ⓘ fossil taxon ⓘ vertebrate ⓘ |
| belongsTo | early agnathan radiation ⓘ |
| class | Anaspida ⓘ |
| ecologicalRole |
marine swimmer
ⓘ
nektonic or nektobenthic animal ⓘ |
| firstAppearance |
Silurian period
ⓘ
linked to:
Silurian
|
| geologicalEra |
Paleozoic
ⓘ
linked to:
Paleozoic Era
|
| hasBodyPlan |
elongate fish-like form
ⓘ
flattened head region ⓘ |
| hasCharacteristic |
armored
ⓘ
bony head shield ⓘ hypocercal tail ⓘ jawless ⓘ lack of paired jaws ⓘ lateral position of gill openings ⓘ paired fins poorly developed or absent ⓘ small scales or plates on body ⓘ streamlined body ⓘ |
| hasImportance | understanding early vertebrate evolution ⓘ |
| hasSkeletalFeature |
cartilaginous internal skeleton (inferred)
ⓘ
dermal armor on head ⓘ reduced trunk armor compared to some ostracoderms ⓘ |
| hasTaxonomicRank | class ⓘ |
| isPartOf | early vertebrate fauna ⓘ |
| kingdom | Animalia ⓘ |
| knownFrom |
Devonian fossil deposits
ⓘ
Silurian fossil deposits ⓘ fossil record ⓘ |
| lastAppearance |
Devonian period
ⓘ
linked to:
Devonian Period
|
| livedIn |
Paleozoic seas
ⓘ
marine environments ⓘ |
| phylum | Chordata ⓘ |
| relatedTo |
Ostracodermi
ⓘ
other early jawless fishes ⓘ |
| status | extinct ⓘ |
| studiedInField |
paleoichthyology
ⓘ
paleontology ⓘ vertebrate paleontology ⓘ |
| subphylum | Vertebrata ⓘ |
| superclass | Agnatha ⓘ |
| temporalRangeEnd | Devonian ⓘ |
| temporalRangeStart | Silurian ⓘ |
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: Anaspida Description of subject: Anaspida is an extinct group of jawless, armored fishes known from the Silurian and Devonian periods, characterized by streamlined bodies and bony head shields.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Anaspida