https://www.universiteitleiden.nl/en/news/2025/05/homo-erectus-from-the-seabed-new-archaeological-discoveries-in-indonesia
During dredging operations in the Madura Strait, archaeologists found fossilised remains of 36 vertebrate species. This is the first discovery of fossils from the seabed between the Indonesian islands. This area, called Sundaland, was once a vast lowland.