Basic Types of Dunes - Dune Worlds: How Windblown Sand Shapes Planetary Landscapes - page 83

Fig. 6.21 A particularly regular stretch of linear dunes in the Belet sand sea on Titan. Image NASA/JPL/R. Lorenz

Fig. 6.22 HiRISE image of
tadpole dunes on Mars. These
dome dunes have long tails. A
plausible scenario is that these
are the last vestiges of previous
linear dunes, or perhaps these are
an extreme example of barchans
with long tails—see Figs. 6.9 and
6.10 . Image NASA/JPL/
U.Arizona