Elpistostegalia
E841966
Elpistostegalia is an extinct group of lobe-finned fishes that includes transitional forms closely related to the earliest tetrapods and the water-to-land evolutionary shift.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Elpistostegalia canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10105862 — 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: Elpistostegalia Context triple: [Sarcopterygii, hasNotableGroup, Elpistostegalia]
-
A.
Cladistia
Cladistia is a primitive group of ray-finned fishes that includes bichirs and reedfish, characterized by lobed fins and ganoid scales.
-
B.
Cetancodonta
Cetancodonta is a mammalian clade that unites whales, dolphins, and porpoises with their closest living terrestrial relatives, the hippopotamuses.
-
C.
Anomaluromorpha
Anomaluromorpha is a suborder of rodents that includes the scaly-tailed flying squirrels and their close relatives, characterized by adaptations for gliding and arboreal life in African forests.
-
D.
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.
-
E.
Preaxostyla
Preaxostyla is a group of unicellular, flagellated protists within the Excavata supergroup, characterized by distinctive cytoskeletal features and often associated with anaerobic or microaerophilic environments.
- 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: Elpistostegalia Target entity description: Elpistostegalia is an extinct group of lobe-finned fishes that includes transitional forms closely related to the earliest tetrapods and the water-to-land evolutionary shift.
-
A.
Cladistia
Cladistia is a primitive group of ray-finned fishes that includes bichirs and reedfish, characterized by lobed fins and ganoid scales.
-
B.
Cetancodonta
Cetancodonta is a mammalian clade that unites whales, dolphins, and porpoises with their closest living terrestrial relatives, the hippopotamuses.
-
C.
Anomaluromorpha
Anomaluromorpha is a suborder of rodents that includes the scaly-tailed flying squirrels and their close relatives, characterized by adaptations for gliding and arboreal life in African forests.
-
D.
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.
-
E.
Preaxostyla
Preaxostyla is a group of unicellular, flagellated protists within the Excavata supergroup, characterized by distinctive cytoskeletal features and often associated with anaerobic or microaerophilic environments.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
clade
ⓘ
extinct taxon ⓘ sarcopterygian group ⓘ |
| ancestralTo | Tetrapoda NERFINISHED ⓘ |
| approximateAgeMa | ~385–360 million years ago ⓘ |
| associatedWith | water-to-land transition ⓘ |
| belongsToGroup | lobe-finned fishes ⓘ |
| class | Sarcopterygii NERFINISHED ⓘ |
| closelyRelatedTo | early tetrapods ⓘ |
| ecologicalRole | shallow-water predator ⓘ |
| evolutionaryRole | transitional between fishes and tetrapods ⓘ |
| fossilsFoundIn |
Australia
NERFINISHED
ⓘ
Canada NERFINISHED ⓘ Euramerica NERFINISHED ⓘ Greenland NERFINISHED ⓘ Latvia NERFINISHED ⓘ Laurentia NERFINISHED ⓘ North America NERFINISHED ⓘ |
| habitat |
coastal wetlands
ⓘ
deltaic environments ⓘ shallow freshwater or brackish environments ⓘ |
| hasCharacteristic |
dorsally placed eyes
ⓘ
flattened skull ⓘ limb-like endoskeleton in fins ⓘ loss or reduction of dorsal fin ⓘ reduced median fins ⓘ ribs capable of supporting body ⓘ robust pectoral fins ⓘ shallow-water adaptations ⓘ |
| importantFor |
understanding fish–tetrapod transition
ⓘ
understanding origin of tetrapod limbs ⓘ |
| isExtinct | true ⓘ |
| kingdom | Animalia ⓘ |
| livedDuring |
Devonian period
NERFINISHED
ⓘ
Paleozoic era ⓘ |
| notableMember |
Elpistostege
NERFINISHED
ⓘ
Panderichthys NERFINISHED ⓘ Tiktaalik NERFINISHED ⓘ |
| partOf | stem-tetrapod radiation ⓘ |
| phylum | Chordata ⓘ |
| showsTransitionOf |
paired fins to limbs
ⓘ
respiratory structures from gills to air-breathing adaptations ⓘ skull and neck mobility ⓘ |
| studiedIn | vertebrate paleontology ⓘ |
| subphylum | Vertebrata NERFINISHED ⓘ |
| superclass | Sarcopterygii NERFINISHED ⓘ |
| taxonomicRank | clade ⓘ |
| temporalRange | Late Devonian ⓘ |
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: Elpistostegalia Description of subject: Elpistostegalia is an extinct group of lobe-finned fishes that includes transitional forms closely related to the earliest tetrapods and the water-to-land evolutionary shift.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.