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Basal Eurasian: Community & Regions
Basal Eurasian is a proposed lineage of anatomically modern humans with reduced, or zero, Neanderthal admixture (ancestry) compared to other ancient non-Africans. They diverged from other Eurasians after the Out-of-African migration and represent a sister lineage to other Eurasians. Basal Eurasians originate from the Southern Middle East, specifically…
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Basal Eurasian topic overview
The analysis highlights Community and Regions as prominent areas in the source structure around Basal Eurasian. 1 topic appears in more than one source area, which can help identify connections that are less obvious in a linear reading.
Related topics
41
Source areas
4
Connected nodes
46
Extracted relationships
61
Concept neighborhoods
20
Bridge connections
46
What this topic covers Research coverage
Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.
Estimated Basal Eurasian ancestry in ancient and modern populations · 21 topics
Overview · 12 topics
Possible geographic origins · 5 topics
Description · 4 topics
Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.
Key facts & relationships
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Cause of collapse
Diverged into Ancient West Eurasians, possibly including Iranian hunter-gatherers, and Ancient East Eurasians.
Characteristics
A 2016 study by Lazaridis et al. found that populations with higher levels of Basal Eurasian ancestry have lower levels of Neanderthal ancestry, which suggests that Basal Eurasi…
Dates
c. 60,000-26,000 years ago
Followed by
Likely admixed into West Eurasian groups present in West Asia as early as 26,000 years ago, prior to the Last Glacial Maximum, with this ancestry being subsequently spread by la…
Geographical range
The Middle East, perhaps specifically around the Persian Gulf region, with a 'Common Eurasian Hub' in the Iranian Plateau
Preceded by
Diverged from other Early human migrations after the Out-of-African migration, representing a sibling lineage to other Eurasians
Explore all related topics Closing gaps
A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.
Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
How Basal Eurasian connects Entity context
Entity context groups extracted connections by relationship type. Counts show recurrence in the analyzed source; the examples are research signals, not claims about importance.
The extracted context around Basal Eurasian shows recurring relationship patterns in the source. For example, Basal Eurasian → Alternatively, An, Ancient East Eurasian, Ancient North Eurasian, Ancient North Eurasians-related, ANE, Basal, Basal Eurasians, Eastern Hunter-Gatherer, EHG, Holocene-era Near Easterners, Mesolithic, Mesolithic Caucasus, Natufians, Neolithic Iranian, Neolithic Iranians, The Mesolithic, WEC2, West Eurasian, Western Hunter-Gatherer-related Another extracted example is Basal Eurasian → African, Africans, Ancient North Eurasians, ANE, Arabian, Basal Eurasians, Early European Farmers, EEF, EEFs, Eurasians, Europeans, Ferreira, Iran, Lazaridis, Levant, Neanderthal, Neanderthals, Persian Gulf, This, Western Hunter-Gatherers. Use these groups to spot repeated connection types before inspecting the individual relationships.
Basal Eurasian
Top relations
related to Estimated Basal Eurasian ancestry in ancient and modern populations· 22
Basal Eurasian → Alternatively, An, Ancient East Eurasian, Ancient North Eurasian, Ancient North Eurasians-related, ANE, Basal, Basal Eurasians, Eastern Hunter-Gatherer, EHG, Holocene-era Near Easterners, Mesolithic, Mesolithic Caucasus, Natufians, Neolithic Iranian, Neolithic Iranians, The Mesolithic, WEC2, West Eurasian, Western Hunter-Gatherer-related
related to Description· 21
Basal Eurasian → African, Africans, Ancient North Eurasians, ANE, Arabian, Basal Eurasians, Early European Farmers, EEF, EEFs, Eurasians, Europeans, Ferreira, Iran, Lazaridis, Levant, Neanderthal, Neanderthals, Persian Gulf, This, Western Hunter-Gatherers
related to Possible geographic origins· 10
Basal Eurasian → Basal Eurasians, Dzudzuana Cave, Georgia, Loosdrecht, Middle East, North Africa, The, West Eurasian, West-Eurasian, Wikidata
Cause of collapse· 1
Basal Eurasian → Diverged into Ancient West Eurasians, possibly including Iranian hunter-gatherers, and Ancient East Eurasians.
Characteristics· 1
Basal Eurasian → A 2016 study by Lazaridis et al. found that populations with higher levels of Basal Eurasian ancestry have lower levels of Neanderthal ancestry, which suggests that Basal Eurasi…
Dates· 1
Basal Eurasian → c. 60,000-26,000 years ago
Followed by· 1
Basal Eurasian → Likely admixed into West Eurasian groups present in West Asia as early as 26,000 years ago, prior to the Last Glacial Maximum, with this ancestry being subsequently spread by la…
Geographical range· 1
Basal Eurasian → The Middle East, perhaps specifically around the Persian Gulf region, with a 'Common Eurasian Hub' in the Iranian Plateau
Preceded by· 1
Basal Eurasian → Diverged from other Early human migrations after the Out-of-African migration, representing a sibling lineage to other Eurasians
Type site· 1
Basal Eurasian → Dzudzuana Cave [Wikidata] in Georgia dating to 26,000 years ago which have around 30% Basal Eurasian ancestry, with the rest being West Eurasian
Important terminology
Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
Relationships are represented as Subject → Predicate → Object triples. Confidence describes extraction strength, not the real-world importance of a relationship; lower-confidence rows may be contextual rather than explicit.
TTTA extracted 61 structured relationships around Basal Eurasian. Examples in this analysis include Basal Eurasian → Cause of collapse → Diverged into Ancient West Eurasians, possibly including Iranian hunter-gatherers, and Ancient East Eurasians. and Basal Eurasian → Characteristics → A 2016 study by Lazaridis et al. found that populations with higher levels of Basal Eurasian ancestry have lower levels of Neanderthal ancestry, which suggests that Basal Eurasi…. The table shows each extracted connection, where it came from and its confidence.
Subject
Predicate
Object
Confidence
Src
Basal Eurasian
Cause of collapse
Diverged into Ancient West Eurasians, possibly including Iranian hunter-gatherers, and Ancient East Eurasians.
1.00
infobox
Basal Eurasian
Characteristics
A 2016 study by Lazaridis et al. found that populations with higher levels of Basal Eurasian ancestry have lower levels of Neanderthal ancestry, which suggests that Basal Eurasi…
1.00
infobox
Basal Eurasian
Dates
c. 60,000-26,000 years ago
1.00
infobox
Basal Eurasian
Followed by
Likely admixed into West Eurasian groups present in West Asia as early as 26,000 years ago, prior to the Last Glacial Maximum, with this ancestry being subsequently spread by la…
1.00
infobox
Basal Eurasian
Geographical range
The Middle East, perhaps specifically around the Persian Gulf region, with a 'Common Eurasian Hub' in the Iranian Plateau
1.00
infobox
Basal Eurasian
Preceded by
Diverged from other Early human migrations after the Out-of-African migration, representing a sibling lineage to other Eurasians
1.00
infobox
Basal Eurasian
Type site
Dzudzuana Cave [Wikidata] in Georgia dating to 26,000 years ago which have around 30% Basal Eurasian ancestry, with the rest being West Eurasian
1.00
infobox
Basal Eurasian
is a
proposed lineage of anatomically modern humans with reduced
0.90
text
Basal Eurasian
related to Description
Lazaridis
0.60
section
Basal Eurasian
related to Description
Europeans
0.60
section
Basal Eurasian
related to Description
Ancient North Eurasians
0.60
section
Basal Eurasian
related to Description
ANE
0.60
section
No triples extracted yet.
Related concept clusters Concept neighborhoods
Concept neighborhoods group terms that sit near one another in the extracted graph. They are useful for discovering adjacent language and context, but proximity does not by itself imply a factual relationship.
The concept neighborhoods around Basal Eurasian bring nearby vocabulary together. In this analysis, examples include Eurasian, Eurasians and Ancestry. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
Basal Eurasian
Eurasian
Eurasians
Ancestry
West
Populations
East
Modern
Around
Middle
North
Neanderthal
Also
basal eurasian
Eurasian
Eurasians
Ancestry
West
East
Populations
Neolithic
Modern
Ago
Years
Around
Middle
anatomically modern humans
Eurasians
Populations
Modern
Neanderthal
Among
Genetic
Also
East
West
Around
Groups
Likely
admixture
Modern
Ancient
Neanderthal
Compared
Humans
Among
Eurasian
East
West
Eurasians
Populations
Basal
middle east
Middle
Eurasians
Specifically
West
Eurasian
Iranian
North
Also
Populations
European
Lineage
Modern
north africa
North
Hunter-gatherers
Middle
East
Iranian
Neolithic
West
Al
Et
Eurasians
Also
Groups
west eurasian
West
Found
Eurasians
East
Neolithic
Ago
Years
Lineage
Around
European
Modern
Iranian
ancient north eurasians
Hunter-gatherers
East
Iranian
Modern
West
North
Populations
Eurasian
Al
Et
Neanderthal
Lineage
Connections between topic areas Semantic bridges
Semantic bridges connect parts of the graph that would otherwise be more separate. A bridge is a structural signal in this analysis, not a claim that the two topic areas are equivalent.
For Basal Eurasian, one of the stronger structural bridges in this analysis connects Basal Eurasian with Estimated Basal Eurasian ancestry in ancient and modern populations. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
Min side: 3
Basal Eurasian — Estimated Basal Eurasian ancestry in ancient and modern populations· splits 25 ⟂ 22Basal Eurasian — Overview· splits 34 ⟂ 13Basal Eurasian — Possible geographic origins· splits 41 ⟂ 6Basal Eurasian — Description· splits 42 ⟂ 5
Map overview Semantic statistics
Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.
Basal Eurasian
Nodes47
Edges46
Triples61
Avg. degree1.96
Density0.042553
Components1
Source & methodology
TTTA analyzes the structure around Basal Eurasian to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Community & Regions, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
