Due to the poor,eroded condition of the corallites in the above pic,I don't think its possible to give an accurate ID on its genus from skeletal features.Its definately not Favia,they have plocoid corallites.Clearly,the above coral has ceriod corallites.The primary septa in the above pic seem to form a columellae.I don't see the well defined septal teeth typical of the Mussidae Family so I'm leaning towards the Faviidae Family.