Flattened Daldinia-like fungus on dead tree

About two weeks ago, I came across a strange coal-like fungus on the bark of a dead, unidentified tree, which had the texture and looks of a Daldinia, but it was flattened so I could not assign it as the two species known in Malta - D. concentric and D. raimundii. These have distinct semi-spherical or cushion-like fruiting bodies, with concentric rings, hence to exclude, but not sure if other Daldinia species that are flattened. I have now considered Biscogniauxia sp. but not sure which sp would be. I can revisit the population for microscopy and further examinations. The tree is not beech, maybe Quercus

This is Biscogniauxia mediterranea on dead Quercus ilex tree.