Last weekend, I spent a day at one of my favorite hunting grounds in Alpena, Michigan, on Lake Huron: Partridge Point. (Thunder Bay Formation, Devonian.)
There's a lot of fossiliferous matrices in limestone. You also find lots of crinoid columnals. Last year, at this location, I found my first -- and only -- blastoid (Placoblastus obovatus).
This time, I walked away with two calyces: I believe the first one pictured here (two images) is Megistrocrinus depressus; the second looks like Dolatocrinus asterias. Have I identified these correctly?