I bought this from a box of unlabelled stuff that a dealer friend in the UK is gradually going through. Another friend IDd the coral as a Heliophyllum halli, perhaps from Hungry Hollow, which seems a good bet - I'm not very familiar with stuff from there though. Middle Devonian anyway.
It was the epifauna that really interested me, especially this nice patch of the bryozoan Botryllopora socialis. (It also has other bryozoans, hederellids and cornulitids.)
Scale in mm.