therapsids
E534361
Therapsids are an extinct group of synapsid vertebrates that dominated terrestrial ecosystems before dinosaurs and gave rise to modern mammals.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Therapsida | 4 |
| therapsids canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5568772 — 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: therapsids Context triple: [Mammalia, evolvedFrom, therapsids]
-
A.
Thelodonti
Thelodonti are an extinct group of small, jawless vertebrates characterized by distinctive scale-covered bodies, known primarily from Silurian and Devonian marine deposits.
-
B.
Lystrosaurus
Lystrosaurus was a small, tusked, herbivorous therapsid (mammal-like reptile) that thrived in the Early Triassic and is notable for its widespread distribution and survival after the Permian–Triassic mass extinction.
-
C.
Cetancodonta
Cetancodonta is a mammalian clade that unites whales, dolphins, and porpoises with their closest living terrestrial relatives, the hippopotamuses.
-
D.
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.
-
E.
Cryptodira
Cryptodira is a major suborder of turtles characterized by their ability to retract the head straight back into the shell by bending the neck in a vertical S-shaped curve.
- 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: therapsids Target entity description: Therapsids are an extinct group of synapsid vertebrates that dominated terrestrial ecosystems before dinosaurs and gave rise to modern mammals.
-
A.
Thelodonti
Thelodonti are an extinct group of small, jawless vertebrates characterized by distinctive scale-covered bodies, known primarily from Silurian and Devonian marine deposits.
-
B.
Lystrosaurus
Lystrosaurus was a small, tusked, herbivorous therapsid (mammal-like reptile) that thrived in the Early Triassic and is notable for its widespread distribution and survival after the Permian–Triassic mass extinction.
-
C.
Cetancodonta
Cetancodonta is a mammalian clade that unites whales, dolphins, and porpoises with their closest living terrestrial relatives, the hippopotamuses.
-
D.
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.
-
E.
Cryptodira
Cryptodira is a major suborder of turtles characterized by their ability to retract the head straight back into the shell by bending the neck in a vertical S-shaped curve.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
amniote
ⓘ
clade ⓘ synapsid ⓘ tetrapod ⓘ vertebrate ⓘ |
| bodyCovering | likely had hair in advanced cynodonts ⓘ |
| class | Synapsida ⓘ |
| distinguishedBy |
differentiated teeth
ⓘ
enlarged canines in many forms ⓘ more upright limb posture than pelycosaurs ⓘ single temporal fenestra in the skull ⓘ |
| dominated |
Permian terrestrial ecosystems
ⓘ
early Triassic terrestrial ecosystems ⓘ |
| earEvolution | postdentary bones gave rise to mammalian middle ear ossicles ⓘ |
| ecologicalRoles |
carnivores
ⓘ
herbivores ⓘ omnivores ⓘ |
| evolvedFrom |
early synapsids
ⓘ
pelycosaurs ⓘ |
| firstAppearance |
Guadalupian
ⓘ
linked to:
Guadalupian Epoch
Middle Permian ⓘ |
| fossilsFoundIn |
Africa
ⓘ
Antarctica ⓘ China ⓘ Europe ⓘ North America ⓘ Russia ⓘ South America ⓘ |
| gaveRiseTo |
Mammalia
ⓘ
mammals ⓘ |
| includes |
Anomodontia
ⓘ
linked to:
Dicynodontia
Biarmosuchia ⓘ
linked to:
Dicynodontia
Cynodontia ⓘ Dinocephalia ⓘ Gorgonopsia ⓘ Therocephalia ⓘ |
| jawEvolution | trend from multiple jaw bones to single dentary bone ⓘ |
| kingdom | Animalia ⓘ |
| lastNonmammalianMembersExtinct | Early Cretaceous ⓘ |
| metabolismTrend | trend toward endothermy in advanced forms ⓘ |
| mostLineagesExtinctBy | end of Triassic ⓘ |
| notableMember |
Dimetrodon-like forms are not therapsids
ⓘ
Lystrosaurus ⓘ |
| phylum | Chordata ⓘ |
| subclass |
Therapsida
ⓘ
linked to:
therapsids
|
| survivedEvent |
Permian–Triassic extinction event
ⓘ
linked to:
Permian–Triassic mass extinction
|
| taxonRank | unranked clade ⓘ |
| temporalRange |
Early Jurassic
ⓘ
Late Permian ⓘ Middle Permian ⓘ Triassic ⓘ |
| typeOf | non-mammalian synapsid ⓘ |
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: therapsids Description of subject: Therapsids are an extinct group of synapsid vertebrates that dominated terrestrial ecosystems before dinosaurs and gave rise to modern mammals.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: therapsids
linked to: therapsids