bvanant
Contributor
Here is a nice little crinoid, Leica 45, with MFO. Crinoids face perpendicular to the current to feed (not how I would do it but I guess if I were a crinoid I would starve). Scientists in Antartica use the orientation of the crinoids to map the near bottom currents (Eleaume et al, Deep Sea Research II, 2010, p163). My Crinoid was sitting happily on a barrel sponge. Enjoy
Bill
Bill