The Sonardyne tsunami detection system is based on a Compatt 6 subsea transponder that uses the latest Wideband acoustic signal technology to provide robust through water communications in difficult acoustic conditions.
exists and is an alternate of . The Megalodon was approximately 40 feet (12 metres) long, although fossil records show that they could often grow as large as 78 feet (18 metres). So if you were to stand the Megalodon on its nose it would be as tall as a six story building.
While the earliest C. megalodon remains were reported from Late Oligocene strata, dated at around 28 million years old, a more reliable date for the origin of the species is the Early Miocene, about 23 million years ago (mya).