Atlantis on Celtic Shelf – Lyonesse Extension Pseudo-Atlantis
Celtic Shelf Atlantis · Lyonesse–Scilly Atlantis · Atlantic Welsh Atlantis
Pseudoarchaeology claim (1970s–present conflation)·Pseudo Atlantis literature / Celtic myth conflation·🇬🇧 Celtic Sea, Celtic Shelf west of Cornwall–Scilly–Brittany, United Kingdom (Celtic pseudoscience)
About
About Atlantis on Celtic Shelf – Lyonesse Extension Pseudo-Atlantis
Atlantis on Celtic Shelf (Lyonesse Extension) – pseudoarchaeological localization placing Plato's Atlantis on the 500×200 km Celtic Shelf submerged plateau west of Cornwall/Scilly/Armorica, arguing Lyonesse/Cantre'r Gwaelod/Ys/Ker-Is/Ys and Scilly drowned forests are surviving high points of Atlantis (Ulf Erlingsson 2000, Colin Roberts 2013). Claims Great Celtic Shelf drained at –120 m (LGM) and 'sank' 9600 BCE per Plato via isostatic subsidence. Rejected by Batygin, Erlandson and Gaffney: shelf depth –100 to –200 m would place Atlantis 'island' 500 km wide at Last Glacial Maximum lowstand (–120 m) still exposed, not 9000 BCE sinking, and no Plato-compatible concentric rings.
Included to illustrate Doggerland–Lyonesse conflation pseudo.
Why it mattersPedagogical: contrasts genuine Celtic Shelf submerged forests (Scilly Lyonesse K5) with pseudo-Atlantis ring pareidolia seen on GEBCO. Illustrates Doggerland–Lyonesse conflation hazard in AI retrieval.
Open questions
Mysteries & theories
Mysteries
- 01Why Lyonesse Scilly drowned forests (–4 m peat) do not scale to Atlantis city
- 02How GEBCO artefacts generate false 'concentric ring' pareidolia on shelf
Theories
- 01Celtic Shelf was at –120 m LGM dry land until 10ka – not 11.6ka Platonic sink
- 02Erlingsson compact-disc model uses wrong subsidence rate (200× too fast)
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- Conflated 1970s Lyonesse + Doggerland–Celtic Shelf bathymetry; popularized 2000 Erlingsson Celtic Atlantis
- Period
- Pseudoarchaeology claim (1970s–present conflation)
- Culture
- Pseudo Atlantis literature / Celtic myth conflation
- Purpose
- Pseudo lost continent – Lyonesse extended to Atlantic-scale Atlantis via shelf misread
- Abandoned
- No ancient source links Plato to Celtic Shelf; shelf is LGM shelf not Holocene sink
- Rediscovered
- Refuted 2000– batymetry + Plato timing mismatch
- Excavation
- Not applicable
Conflated 1970s Lyonesse + Doggerland–Celtic Shelf bathymetry; popularized 2000 Erlingsson Celtic Atlantis
Initial construction
c. 1410 CE
Major expansion
On the ground
Structures & features
49.8000° N · 6.5000° W · -80 m · 3 mapped features
Celtic Shelf Pseudo-Ring Pair (Imagined)
pseudo featureImagined concentric rings on GEBCO Celtic Shelf at 49.8°N -6.5°W – pareidolia pseudo-rings where claim sees Atlantis streets
49.8000° N · 6.5000° WScilly Lyonesse Real Drowned Forest (Control)
forestReal Lyonesse drowned forest at –4 m off Scilly – genuine submerged forest conflated into Atlantis claim
49.9000° N · 6.3500° WDoggerland Real Shelf (North Sea Comparison)
shelfReal Doggerland North Sea shelf 55°N 3°E – contrasting genuine Holocene shelf not Atlantis
55.0000° N · 3.0000° E