proto-Atlantic Ocean
E727679
The proto-Atlantic Ocean was an early Mesozoic ocean basin that formed during the initial rifting of the supercontinent Pangaea and preceded the modern Atlantic Ocean.
All labels observed (1)
| Label | Occurrences |
|---|---|
| proto-Atlantic Ocean canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8356791 — 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: proto-Atlantic Ocean Context triple: [Toarcian Oceanic Anoxic Event, hasGlobalExtent, proto-Atlantic Ocean]
-
A.
Central Atlantic Ocean
The Central Atlantic Ocean is the mid-portion of the Atlantic Ocean basin, characterized by deep abyssal plains, the Mid-Atlantic Ridge, and extensive open-ocean waters between the Americas, Europe, and Africa.
-
B.
eastern Atlantic Ocean
The eastern Atlantic Ocean is the portion of the Atlantic bordering the western coasts of Europe and Africa, encompassing key maritime routes and strategic naval operating areas.
-
C.
equatorial Atlantic Ocean
The equatorial Atlantic Ocean is the warm, central belt of the Atlantic that straddles the Earth's equator, connecting the tropical waters of the eastern and western hemispheres and playing a key role in global ocean circulation and climate.
-
D.
North-East Atlantic Ocean
The North-East Atlantic Ocean is the northeastern portion of the Atlantic, encompassing waters off Europe and parts of the Arctic and governed for environmental protection and marine management by regional bodies such as the OSPAR Commission.
-
E.
North Atlantic area
The North Atlantic area is the broad transatlantic region encompassing the northern parts of the Atlantic Ocean and surrounding countries in Europe and North America that form the geographic focus of NATO’s collective security.
- 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: proto-Atlantic Ocean Target entity description: The proto-Atlantic Ocean was an early Mesozoic ocean basin that formed during the initial rifting of the supercontinent Pangaea and preceded the modern Atlantic Ocean.
-
A.
Central Atlantic Ocean
The Central Atlantic Ocean is the mid-portion of the Atlantic Ocean basin, characterized by deep abyssal plains, the Mid-Atlantic Ridge, and extensive open-ocean waters between the Americas, Europe, and Africa.
-
B.
eastern Atlantic Ocean
The eastern Atlantic Ocean is the portion of the Atlantic bordering the western coasts of Europe and Africa, encompassing key maritime routes and strategic naval operating areas.
-
C.
equatorial Atlantic Ocean
The equatorial Atlantic Ocean is the warm, central belt of the Atlantic that straddles the Earth's equator, connecting the tropical waters of the eastern and western hemispheres and playing a key role in global ocean circulation and climate.
-
D.
North-East Atlantic Ocean
The North-East Atlantic Ocean is the northeastern portion of the Atlantic, encompassing waters off Europe and parts of the Arctic and governed for environmental protection and marine management by regional bodies such as the OSPAR Commission.
-
E.
North Atlantic area
The North Atlantic area is the broad transatlantic region encompassing the northern parts of the Atlantic Ocean and surrounding countries in Europe and North America that form the geographic focus of NATO’s collective security.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
ancient ocean
ⓘ
geological feature ⓘ ocean basin ⓘ |
| alternativeName |
early Atlantic Ocean
NERFINISHED
ⓘ
proto-Atlantic basin ⓘ |
| associatedWith |
formation of early mid-Atlantic-type ridge system
ⓘ
initial seafloor spreading between North America and Africa ⓘ |
| causeOf | development of passive continental margins along future Atlantic coasts ⓘ |
| evolvedInto | Atlantic Ocean NERFINISHED ⓘ |
| formedBy |
continental rifting
ⓘ
rifting of Pangaea ⓘ |
| formedDuring |
Early Mesozoic
ⓘ
Jurassic period ⓘ Triassic period ⓘ |
| geologicalAge | Mesozoic ⓘ |
| hasApproximateStart | around 200 million years ago ⓘ |
| locatedBetween |
Laurasia and Gondwana (during early stages of opening)
NERFINISHED
ⓘ
separating North America from Africa-Europe (during early Mesozoic) ⓘ |
| openedAlong | central Atlantic rift system ⓘ |
| partOfProcess | breakup of Pangaea ⓘ |
| preceded | Atlantic Ocean NERFINISHED ⓘ |
| predecessorOf |
North Atlantic Ocean
NERFINISHED
ⓘ
South Atlantic Ocean NERFINISHED ⓘ |
| relatedTo | Central Atlantic Magmatic Province NERFINISHED ⓘ |
| studiedInDiscipline |
historical geology
ⓘ
paleogeography ⓘ plate tectonics ⓘ |
| successor | modern Atlantic Ocean basin ⓘ |
| tectonicSetting | divergent plate boundary ⓘ |
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: proto-Atlantic Ocean Description of subject: The proto-Atlantic Ocean was an early Mesozoic ocean basin that formed during the initial rifting of the supercontinent Pangaea and preceded the modern Atlantic Ocean.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.