Eutheria
E38259
Eutheria is a major clade of mammals that includes all placental mammals and their extinct relatives, characterized by prolonged gestation and complex placental development.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Eutheria canonical | 29 |
| Placentalia | 8 |
| Eutheria (placental mammals) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T298383 — 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: Eutheria Context triple: [Xerospermophilus, belongsToClade, Eutheria]
-
A.
Artiodactyla
Artiodactyla is a large order of even-toed hoofed mammals that includes animals such as deer, cattle, pigs, and camels.
-
B.
Diprotodontia
Diprotodontia is a large order of marsupial mammals, including kangaroos, wallabies, koalas, and wombats, primarily native to Australia and nearby regions.
-
C.
Carnivora
Carnivora is a diverse order of primarily meat-eating mammals that includes families such as bears, cats, dogs, weasels, and seals.
-
D.
Macropodidae
Macropodidae is a family of marsupials that includes kangaroos, wallabies, and their close relatives, characterized by powerful hind legs adapted for hopping.
-
E.
Primates
Primates are a diverse order of mammals that includes humans, apes, monkeys, and prosimians, characterized by large brains, forward-facing eyes, and grasping hands.
- 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: Eutheria Target entity description: Eutheria is a major clade of mammals that includes all placental mammals and their extinct relatives, characterized by prolonged gestation and complex placental development.
-
A.
Artiodactyla
Artiodactyla is a large order of even-toed hoofed mammals that includes animals such as deer, cattle, pigs, and camels.
-
B.
Diprotodontia
Diprotodontia is a large order of marsupial mammals, including kangaroos, wallabies, koalas, and wombats, primarily native to Australia and nearby regions.
-
C.
Carnivora
Carnivora is a diverse order of primarily meat-eating mammals that includes families such as bears, cats, dogs, weasels, and seals.
-
D.
Macropodidae
Macropodidae is a family of marsupials that includes kangaroos, wallabies, and their close relatives, characterized by powerful hind legs adapted for hopping.
-
E.
Primates
Primates are a diverse order of mammals that includes humans, apes, monkeys, and prosimians, characterized by large brains, forward-facing eyes, and grasping hands.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
clade
ⓘ
mammal clade ⓘ taxon ⓘ |
| characteristic |
complete development of young before birth
ⓘ
complex placenta ⓘ prolonged gestation ⓘ viviparity ⓘ |
| class | Mammalia ⓘ |
| commonName | eutherian mammals ⓘ |
| contains |
Afrotheria
ⓘ
Euarchontoglires ⓘ Laurasiatheria ⓘ Xenarthra ⓘ |
| definingFeature |
absence of epipubic bones in living forms
ⓘ
presence of a true placenta connecting fetus and mother ⓘ |
| distinguishedFrom | Metatheria by longer intrauterine development ⓘ |
| earliestFossils |
Eomaia
ⓘ
Juramaia ⓘ |
| excludes |
Marsupialia
ⓘ
Monotremata ⓘ |
| fossilRange | Late Jurassic to Recent ⓘ |
| includes |
Afrosoricida
ⓘ
Carnivora ⓘ Artiodactyla ⓘ
surface form:
Cetartiodactyla
Chiroptera ⓘ Xenarthra ⓘ
surface form:
Cingulata
Dermoptera ⓘ Eulipotyphla ⓘ Hyracoidea ⓘ Lagomorpha ⓘ Macroscelidea ⓘ Microbiotheria (fossil eutherians sometimes historically misassigned) ⓘ Perissodactyla ⓘ Pholidota ⓘ Pilosa ⓘ Placentalia ⓘ Primates ⓘ Proboscidea ⓘ Rodentia ⓘ Scandentia ⓘ Sirenia ⓘ Tubulidentata ⓘ |
| kingdom | Animalia ⓘ |
| namedBy | Thomas Henry Huxley ⓘ |
| parentTaxon | Theria ⓘ |
| phylum | Chordata ⓘ |
| reproduction | placental reproduction ⓘ |
| sisterGroup |
Marsupialia
ⓘ
surface form:
Metatheria
|
| subclass | Theria ⓘ |
| taxonRank | infraclass ⓘ |
| yearNamed | 1880 ⓘ |
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: Eutheria Description of subject: Eutheria is a major clade of mammals that includes all placental mammals and their extinct relatives, characterized by prolonged gestation and complex placental development.
Referenced by (38)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Placentalia
this entity surface form:
Placentalia
this entity surface form:
Eutheria (placental mammals)
this entity surface form:
Placentalia
this entity surface form:
Placentalia
this entity surface form:
Placentalia
this entity surface form:
Placentalia
this entity surface form:
Placentalia