The next Boneyard is going to be up at Greg Laden's place on Sunday, so if you've got something you want to be included get it to him or me within the next 24 hours. The carnival is also in need of a host for April 19th, so if you're up to it just let me know in an e-mail or here in the comments.
CRAP! These things come up so quickly. Nytcosaurus again, I suppose, and I'll try to post something uber-awesome tomorrow.
I did do that post on sloths, but ultimately I think crinoids get priority.