Umberalla Stones or kotakkal
- Kotakkals are found mostly in the laterite areas in districts suches Kozhikode, malappuram and Trissur.
- Kotakkal: – in the shape of an oversized mushroom which looks like a palm leaf umbrella.
HOW THE WEIGHT REMAIN BALANCED?
- Umbrella stone consists of an umbrella head, a laterite stone with a wide circular flat base.
- A stem almost in the shape of a lotus bud vertically divided in to four, that form clinostat.
- The clinostats beveled an the outside and each of them faces cardinal direction
- The centre of the clinostats provides some space where some burial remains are sometimes found. Eg:Anakkara excavation.
- Clinostats join up together into a square at the base of the outside beveled in such a way us to close up along the diagonals the square.
- Surface of the clinostat is fairly dressed so that figure of monument becomes parabolic.
- The truncation near the top helps the circular umbrella part to rest on a rather flat surface.
Ariyannur Umbrella stones
- Aryannur is situated near choondal south east of kunnamkulam.
- Six umbrella stones in a group 4 are intact 2 are partly broken.
- Excavations revealed 2 two urns, one small and one large.
- Bigger urn has the ring chain decoration with parallel symmetrical ends.