Crucuno megalithic yardAny unit of length 2.7-2.73 feet long, after Alexander Thom discovered 2.72 ft and 2.722 ft as units within the geometry within the megalithic monuments of Britain and Brittany. of 2.7 feet, crucial to the factorization of time where 10 CMYCrucuno megalithic yard of 2.7 feet, crucial to the factorization of time where 10 CMY become a lunar month of 945/32 days of 32/25 feet per day, the Iberian foot. become a lunar month of 945/32 days of 32/25 feet per day, the Iberian foot.