Pannotia
E229288
Pannotia was a short-lived Neoproterozoic supercontinent that formed after the breakup of Rodinia and existed roughly 650–540 million years ago.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pannotia canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T2000560 — 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: Pannotia Context triple: [Rodinia, precedes, Pannotia]
-
A.
Dickinsonia
Dickinsonia is an extinct, soft-bodied, segmented organism from the late Ediacaran Period, notable for its quilted, oval shape and its debated position in the tree of life.
-
B.
Kimberella
Kimberella is an extinct, soft-bodied marine organism from the late Precambrian Ediacaran period, often considered one of the earliest known animals with possible mollusc-like features.
-
C.
Tribrachidium
Tribrachidium is an extinct, tri-radially symmetrical organism from the late Ediacaran period, known from fossil impressions that provide insight into some of the earliest complex multicellular life.
-
D.
Poebrotherium
Poebrotherium is an extinct early camelid genus from the Eocene and Oligocene of North America, known for its small, deer-like body and significance in camel evolution.
-
E.
Rhynia
Rhynia is an extinct genus of simple, leafless vascular plants from the Early Devonian period that represents one of the earliest well-preserved examples of land plant evolution.
- 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: Pannotia Target entity description: Pannotia was a short-lived Neoproterozoic supercontinent that formed after the breakup of Rodinia and existed roughly 650–540 million years ago.
-
A.
Dickinsonia
Dickinsonia is an extinct, soft-bodied, segmented organism from the late Ediacaran Period, notable for its quilted, oval shape and its debated position in the tree of life.
-
B.
Kimberella
Kimberella is an extinct, soft-bodied marine organism from the late Precambrian Ediacaran period, often considered one of the earliest known animals with possible mollusc-like features.
-
C.
Tribrachidium
Tribrachidium is an extinct, tri-radially symmetrical organism from the late Ediacaran period, known from fossil impressions that provide insight into some of the earliest complex multicellular life.
-
D.
Poebrotherium
Poebrotherium is an extinct early camelid genus from the Eocene and Oligocene of North America, known for its small, deer-like body and significance in camel evolution.
-
E.
Rhynia
Rhynia is an extinct genus of simple, leafless vascular plants from the Early Devonian period that represents one of the earliest well-preserved examples of land plant evolution.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Neoproterozoic supercontinent
ⓘ
supercontinent ⓘ |
| alsoKnownAs |
Gondwana
ⓘ
surface form:
Greater Gondwana
supercontinent Pannotia ⓘ
surface form:
Vendian supercontinent
|
| approximatePaleolatitude | high southern latitudes ⓘ |
| assemblyProcess | collision and amalgamation of Neoproterozoic cratons ⓘ |
| associatedOrogeny |
Brasiliano orogeny
ⓘ
Cadomian orogeny ⓘ Kuunga orogeny ⓘ Pan-African orogeny ⓘ |
| associatedWith |
Ediacaran Period
ⓘ
late Neoproterozoic glaciations ⓘ |
| breakupContributedTo |
opening of the Iapetus Ocean
ⓘ
opening of the early Paleozoic ocean basins ⓘ |
| breakupLedTo | formation of separate continents including Laurentia, Baltica, and Gondwana ⓘ |
| breakupProcess | rifting and continental fragmentation ⓘ |
| characteristic | short-lived compared to other supercontinents ⓘ |
| chronologicalPosition |
immediately precedes the Cambrian explosion in time
ⓘ
pre-Cambrian supercontinent ⓘ |
| continentAssembly | aggregation of Gondwana-related cratons with Laurentia, Baltica, and Siberia ⓘ |
| duration | approximately 110 million years ⓘ |
| endExistence | approximately 540 million years ago ⓘ |
| evidenceType |
geochronology
ⓘ
orogenic belts correlation ⓘ paleomagnetic data ⓘ structural geology ⓘ |
| followedBy | Gondwana ⓘ |
| formedAfter |
supercontinent Rodinia
ⓘ
surface form:
Rodinia
|
| geologicalEon |
Neoproterozoic Era
ⓘ
surface form:
Neoproterozoic Eon
|
| includedContinent |
Baltica
ⓘ
Gondwana ⓘ
surface form:
Gondwana core
Laurentia ⓘ Siberia ⓘ |
| namedBy | geologists studying Neoproterozoic supercontinents ⓘ |
| oceanicCounterpart | Pan-African oceans (broad sense) ⓘ |
| paleogeographicModel | continents arranged in a mostly equatorial to high-latitude ring around a large ocean ⓘ |
| precededBy |
supercontinent Rodinia
ⓘ
surface form:
Rodinia
|
| relatedConcept | supercontinent cycle ⓘ |
| significance |
reorganization of global plate tectonics before the Cambrian
ⓘ
represents a stage between Rodinia and Gondwana in the supercontinent cycle ⓘ |
| startExistence | approximately 650 million years ago ⓘ |
| status | hypothesized and reconstructed from geological evidence ⓘ |
| tectonicSetting | assembly of continental blocks around the South Pole ⓘ |
| timeSpanOverlaps |
Cryogenian Period
ⓘ
Ediacaran Period ⓘ late Neoproterozoic Era ⓘ |
| uncertainty | configuration and extent are debated among geologists ⓘ |
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: Pannotia Description of subject: Pannotia was a short-lived Neoproterozoic supercontinent that formed after the breakup of Rodinia and existed roughly 650–540 million years ago.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Rodinia
subject surface form:
Proto-Africa
subject surface form:
Proto-Africa
subject surface form:
Proto-Africa