Could more ancient wooden wrecks survive at depth?
Short answerYes, when a wreck descends gently, avoids crushing pressure, and settles where chemistry and marine organisms do not rapidly consume it.
NotesA ship that glides or slows through sufficiently deep water may reach the bottom without shattering on impact. It must also avoid depths where pressure crushes surviving structure. Low-oxygen or otherwise unfavorable conditions for wood-eating organisms can then preserve material for centuries. The Black Sea is an especially promising place to find Phoenician and other ancient wrecks.