The fun part is when I lifted it out of the ground a chuck fell off, revealing this gorgeous calcite geode inside where sediments didn't fill this burrow 100%.
One of the largest most complete Rauffella palmipes feeder burrow fill I have ever found. I hadn't heard of any other trace fossils yet that comes close to this weird one. The invertebrate animal that leaves them makes overlapping spoon shaped burrows with one entry hole.