Ptyctodontida
E1246014
UNEXPLORED
Ptyctodontida is an extinct order of placoderm fishes characterized by their reduced armor and specialized crushing tooth plates, known primarily from Devonian marine deposits.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ptyctodontida canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T17037580 — 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: Ptyctodontida Context triple: [Placodermi, included, Ptyctodontida]
-
A.
Nautichthys
Nautichthys is a genus of marine ray-finned fishes in the family Hemitripteridae, commonly known as sea ravens or sailfin sculpins, found in cold North Pacific waters.
-
B.
Chitonotidae
Chitonotidae is a family of marine ray-finned fishes within the suborder Hexagrammoidei, known for inhabiting cold temperate coastal waters of the North Pacific.
-
C.
Heteropneustidae
Heteropneustidae is a family of air-breathing catfishes known for their elongated bodies and ability to survive in low-oxygen freshwater habitats.
-
D.
Pantodontidae
Pantodontidae is a small family of freshwater ray-finned fishes best known for the African butterflyfish, characterized by its wing-like pectoral fins and surface-dwelling lifestyle in African rivers and swamps.
-
E.
Diodontidae
Diodontidae is a family of marine fish commonly known as porcupinefishes, characterized by their ability to inflate their bodies and their covering of sharp spines for defense.
- 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: Ptyctodontida Target entity description: Ptyctodontida is an extinct order of placoderm fishes characterized by their reduced armor and specialized crushing tooth plates, known primarily from Devonian marine deposits.
-
A.
Nautichthys
Nautichthys is a genus of marine ray-finned fishes in the family Hemitripteridae, commonly known as sea ravens or sailfin sculpins, found in cold North Pacific waters.
-
B.
Chitonotidae
Chitonotidae is a family of marine ray-finned fishes within the suborder Hexagrammoidei, known for inhabiting cold temperate coastal waters of the North Pacific.
-
C.
Heteropneustidae
Heteropneustidae is a family of air-breathing catfishes known for their elongated bodies and ability to survive in low-oxygen freshwater habitats.
-
D.
Pantodontidae
Pantodontidae is a small family of freshwater ray-finned fishes best known for the African butterflyfish, characterized by its wing-like pectoral fins and surface-dwelling lifestyle in African rivers and swamps.
-
E.
Diodontidae
Diodontidae is a family of marine fish commonly known as porcupinefishes, characterized by their ability to inflate their bodies and their covering of sharp spines for defense.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.