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Tagslagoon
18 places carry this tag, across every kind and continent it appears in.
🇹🇭 Thailand · Submerged site
Dvaravati to Early Ayutthaya (c. 700–1400 CE) · Srivijaya / Dvaravati / Thai
Srivijayan moated port chain 8th–13th c. – brick wharves at –0.5 m under Songkhla lagoon paddy.
🇪🇬 Egypt · Submerged site
Ptolemaic to Late Roman (275 BCE – 550 CE) · Ptolemaic Greek / Roman Egyptian / Nabataean trade diaspora
Northern lagoon basin of Berenike — rock-cut mole at 0.8–2.2 m behind mangrove spit in Foul Bay.
🇺🇦 Ukraine · Submerged site
Classical to Late Antique (5th c. BCE – 370 CE) · Kimmerian / Bosporan Greek
Lagoon harbour of Kimmerikon below Opuk Mountain — 80 m quay at –1.5 m behind pink lake lagoon spit with fortress walls 300 m.
🇧🇴 Bolivia · Hypothetical site
Hypothetical 1200 CE if mound (unvalidated) or Holocene floating mat natural · Hypothetical Casarabe lagoon islet (unvalidated) or natural floating polder
Hypothetical Moxos central lagoon islet 200 m 2.5 m inside Cedro lagoon with 500 m causeway — ground truth floating camalote mat not mound, levee 0.4 m natural, hippo burrow suspected.
🇬🇷 Greece · Buried city
Early Bronze to Classical (c.2600 – 373 BCE) · Achaean Greek
373 BCE tsunami-lost Helike — Classical city and EBA settlement both buried 3 m under Bouras lagoonal marine silt 60 m inland, originally submerged.
🇪🇬 Egypt · Submerged site
Ptolemaic to Late Roman (274 BCE – 500 CE) · Ptolemaic Greek / Roman Egyptian / Indian Ocean trade
Central lagoon basin of Myos Hormos — mole and Roman quay at 0.5–2.5 m in Marsa Nakari mangrove lagoon.
🇪🇬 Egypt · Buried city
Ptolemaic to Late Roman (270 BCE – 350 CE) · Greco-Roman Egyptian
Western fishing lagoon of Soknopaiou Nesos — 65 m lee basin with jetty, now dry silt at Dime west.
🇵🇪 Peru · Hypothetical site
Hypothetical Late Horizon (?) palm swamp levee 900 CE or natural · Hypothetical Inca lagoon city (unvalidated) / pre-Columbian field (?)
Paititi lagoon swamp third variant 1.2 km levee 0.9 m at Pusharo lagoon edge with 15 m mound-islands — 1600 CE charcoal but no stone, palm levee geofact.
🇵🇪 Peru · Hypothetical site
Hypothetical Late Horizon (?) palm swamp levee 900 CE or natural · Hypothetical Inca lagoon city (unvalidated) / pre-Columbian field (?)
Paititi lagoon swamp third variant 1.2 km levee 0.9 m at Pusharo lagoon edge with 15 m mound-islands — 1600 CE charcoal but no stone, palm levee geofact.
🇧🇿 Belize · Pyramid
Preclassic to Contact Period (1500 BCE–1675 CE) · Maya (Lamanai polity, Yucatec–Mopan)
Continuous 3000-year Maya city (1500 BCE–1675 CE) surviving Classic collapse into Spanish contact, on 1 km lagoon shore.
🇹🇳 Tunisia · Ancient city
Phoenician to Late Antique (8th c. BCE–7th c. CE) · Phoenician / Numidian / Roman
Phoenician-Roman port under modern Bizerte with lagoon quay.
🇬🇷 Greece · Buried city
Early Bronze Age to Classical (3000 – 373 BCE) · Mycenaean / Achaean Greek
Western lagoon core field of Helike — 28 boreholes at 3–6 m with 373 BCE tsunami sand sealing Classical city.
🇷🇺 Russia · Submerged site
Archaic to Medieval Rus (550 BCE – 1400 CE) · Mytilenean Greek / Bosporan / Byzantine / Kievan Rus
Northern lagoon harbour of Hermonassa — rubble mole and timber causeway at 1.5–3 m in Taman lagoon.
🇧🇴 Bolivia · Hypothetical site
Hypothetical 1200 CE if mound (unvalidated) or Holocene floating mat natural · Hypothetical Casarabe lagoon islet (unvalidated) or natural floating polder
Hypothetical Moxos central lagoon islet 200 m 2.5 m inside Cedro lagoon with 500 m causeway — ground truth floating camalote mat not mound, levee 0.4 m natural, hippo burrow suspected.
🇮🇹 Italy · Submerged site
Phoenician to Classical (c. 800–397 BCE) · Phoenician / Carthaginian
Phoenician lagoon island with 1 km submerged causeway at –0.5 m and cothon harbour, Stagnone.
🇱🇾 Libya · Ancient city
Archaic to Hellenistic (600–250 BCE) · Greek / Hellenistic
Abandoned c.250 BCE lagoon promontory synoecized to Berenice, preserved smash floors under sabkha.
🇱🇾 Libya · Ancient port
Ptolemaic to Byzantine (3rd c. BCE–7th c. CE) · Ptolemaic / Roman
Lagoon annex east of Paraetonium with fish weir and warehouse strip.
🇷🇴 Romania · Ancient village
Middle Neolithic to Late Neolithic (Hamangia I–IV) · Hamangia (Black Sea Neolithic)
Type-site Hamangia culture (c.5250–4550 BCE, Middle Neolithic–Early Chalcolithic) on Goloviţa lagoon: low tell plus flat cemetery famous for 'The Thinker' (Gânditorul) and Woman seated figurines —…
