therapsids
E534361
Therapsids are an extinct group of synapsid vertebrates that dominated terrestrial ecosystems before dinosaurs and gave rise to modern mammals.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Therapsids | 0 |
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
amniote
ⓘ
clade ⓘ synapsid ⓘ tetrapod ⓘ vertebrate ⓘ |
| bodyCovering | likely had hair in advanced cynodonts ⓘ |
| class | Synapsida NERFINISHED ⓘ |
| 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
NERFINISHED
ⓘ
Middle Permian NERFINISHED ⓘ |
| fossilsFoundIn |
Africa
NERFINISHED
ⓘ
Antarctica NERFINISHED ⓘ China NERFINISHED ⓘ Europe NERFINISHED ⓘ North America NERFINISHED ⓘ Russia NERFINISHED ⓘ South America NERFINISHED ⓘ |
| gaveRiseTo |
Mammalia
NERFINISHED
ⓘ
mammals ⓘ |
| includes |
Anomodontia
NERFINISHED
ⓘ
Biarmosuchia NERFINISHED ⓘ Cynodontia NERFINISHED ⓘ Dinocephalia NERFINISHED ⓘ Gorgonopsia NERFINISHED ⓘ Therocephalia NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| phylum | Chordata ⓘ |
| subclass | Therapsida NERFINISHED ⓘ |
| survivedEvent | Permian–Triassic extinction event NERFINISHED ⓘ |
| taxonRank | unranked clade ⓘ |
| temporalRange |
Early Jurassic
ⓘ
Late Permian ⓘ Middle Permian NERFINISHED ⓘ Triassic ⓘ |
| typeOf | non-mammalian synapsid ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.