Monomad - Some fungi that grow on the bark of coconut trees

This is my entry for the daily #monomad challenge

Some time ago, while passing through a plantation area, I saw a coconut tree that had long fallen and was starting to rot. Finally I approached it hoping there were some mushrooms there. My suspicion was true, I could find small, brownish mushrooms growing on the outer skin of the fallen coconut trunk.

These mushrooms don't grow alone, at least I could find some of them with slightly different sizes and shapes. There are mushroom umbrellas that are shaped like cowboy hats, there are also those that are like ears & there are also those that grow close together.

Unfortunately, I was unable to identify the scientific name of the fungus even though I had repeatedly matched it but none of the results matched or resembled it. And I have uploaded some photos of the mushrooms I mean below: