The clouds listed in the figure on this page are found in the troposphere, which is the lowest layer in the atmosphere and is where weather occurs. Polar stratospheric clouds are located in a layer of the atmosphere called the stratosphere.
Also question is, which type of clouds are high feathery clouds made of ice crystals?
Cirrus clouds are wispy, feathery, and composed entirely of ice crystals. They often are the first sign of an approaching warm front or upper-level jet streak. Unlike cirrus, cirrostratus clouds form more of a widespread, veil-like layer (similar to what stratus clouds do in low levels).
How are clouds formed from ice crystals?
The most common form of high-level clouds are thin and often wispy cirrus clouds. Typically found at heights greater than 20,000 feet (6,000 meters), cirrus clouds are composed of ice crystals that originate from the freezing of supercooled water droplets.