Pantelleria Vecchia Bank Megalith
{{short description|Anomalous underwater artifact of uncertain origin}}
{{Coord missing|Italy}}
{{Coord missing|Tunisia}}
The Pantelleria Vecchia Bank Megalith is an anomalous artifact of uncertain origin, located on the Pantelleria Vecchia Bank in the Strait of Sicily between Sicily and Tunisia, at a depth of 40 meters underwater. Studies have suggested that the object appears to be man-made. The megalith is a large block of sedimentary calcirudite limestone measuring 12 meters long, and weighing 15 tons.{{Cite web |date=2015-08-12 |title=9,300-Year-Old Stonehenge-Style Monolith Found in Mediterranean Sea {{!}} Archaeology {{!}} Sci-News.com |url=https://www.sci.news/archaeology/science-stonehenge-monolith-coast-sicily-03121.html |access-date=2022-09-14 |website=Sci.News: Breaking Science News |language=en-US}}
The stone may have been carved when the area last stood above ocean level around 10,000 years ago during the early Mesolithic. The radiocarbon dating of shell fragments extracted from the stone indicate the stone itself to be 40,000 years old while the ocean floor surrounding the megalith is 10 million years old.{{Cite web | url=https://www.livescience.com/51848-monolith-sicilian-channel.html |title = Ancient Monolith Suggests Humans Lived on Now-Underwater Archipelago|author=Laura Geggel|date=August 13, 2015}} This suggests that the megalith may have been carved from imported stone.{{cite journal|url=http://discovermagazine.com/2016/janfeb/96-what-lies-beneath|title= Mysterious Monolith in the Sicilian Channel|journal= Discover|author=Gemma Tarlach|date=November 30, 2015}}
The megalith contains three holes with similar diameters, which are partially filled with barnacles and other crustaceans. One of the holes, with a diameter of 60 centimeters, visibly extends all the way through the stone.
History
The megalith was discovered by Emanuele Lodolo and Zvi Ben-Avraham in 2015 during a seafloor mapping survey in an area called the Pantelleria Vecchia Bank, located about 60 kilometers south of Sicily.{{cite journal |last1=Lodolo |first1=Emanuele |last2=Ben-Avraham |first2=Zvi |title=A submerged monolith in the Sicilian Channel (central Mediterranean Sea): Evidence for Mesolithic human activity |journal=Journal of Archaeological Science: Reports |date=September 2015 |volume=3 |pages=398–407 |doi=10.1016/j.jasrep.2015.07.003 }} After scans indicated a large roughly rectangular object, divers and cameras were deployed to capture photographic evidence. The divers described what appeared to be a large monolith, broken into two sections.
The entire Pantelleria Vecchia Bank is a shallow area which was once an island. Based on known sea level data, it is estimated that the island last stood above the ocean level almost 10,000 years ago.{{Cite web|url=https://www.archaeology.org/news/3548-150807-underwater-mesolithic-monolith|title=Monolith Discovered in the Sicilian Channel|work=Archaeology Magazine|date=August 7, 2015}}