Nessie the basilosaurid

Loch Ness closed to the open ocean less than a million years ago. So ideas of Nessie being a long extinct plesiosaur isolated for millions of years isn't well supported. Nor is it that she's a long necked basilosaurid, but given that they went extinct tens of millions of years later than plesiosaurs I think I could make the case that it's at least like *0.1%* more likely.