The Bermuda Pedestal is an oval geological feature in the northern Atlantic Ocean containing the topographic highs of the Bermuda Platform, the Plantagenet (Argus) Bank, and the Challenger Bank.
Volcaniclastic deposition and erosion ended with subsidence below sea level in the Late Oligocene.
[2] Scientists have long considered the Bermuda Pedestal to be the remains of a large extinct shield volcano that formed between 45 and 35 million years ago.
A number of theories have been established to explain the origin of the Bermuda Pedestal.
In contrast, Peter R. Vogt and Woo-Yeol Jung propose instead that the Bermuda Pedestal possibly formed as a result of a worldwide reorganization of the Earth's tectonic plates due to the closing of the Tethys Ocean when the Indian subcontinent collided with Eurasia.