is the remnant of a lunar crater
that has been almost completely submerged by lava
flow. It is located near the south end of Mare Humorum
, to the north east of the Doppelmayer crater
remnant. To the south-southeast is the Vitello crater
. Of the original Puiseux crater, only the upper part of the rim remains above the mare
surface. There are some small craterlets within the interior floor.
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Puiseux crater.