Recent excavations have, on the other hand, shown that the brick pyramids of Dahshur probably belonged to the Twelfth Dynasty.

The stone pyramids of that group, which may be older, furnish a curious variation from the usual type.

One of these stone pyramids has the lower half inclined at 54 deg.

41', while the upper part changes sharply to 42 deg.

59'; it might be called a mastaba (Note 35) crowned by a gigantic attic.