I came across this piece while searching for petrified wood a little over a month ago. I've been reaching out to various professionals and universities, and while folks have found the specimen fascinating, no one has been able to offer much of an explanation as to how this could have occurred since the soft-bodied creature would have had to leave an imprint that survived the many-year silification of the wood. Bore holes are apparently common in wood, but nothing with this level of texture/detail. Some have proposed the idea that the imprint was left in sap or a fine "paste" made from pulp, which then hardened and when through cell-replacement along with the surrounding wood. Others have proposed it could be the result of the tree growing in around a bone fragment, etc...
Very curious to hear from those who have seen this sort of thing before!
I'm also excited to be making my first post as a FF community member. Rock- and fossil-hunting are a new hobby for me, and I'm loving it!