This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Crinoid stems. These are the fossilised stems used by creatures similar to feather stars or sealilies to attach themselves to the ocean bottom long ago JIM CONRAD'S NATURALIST NEWSLETTER Written on the road and issued from the woods edge near Natchez Mississippi USA backyardnature net htm backyardnature net Jim Conrad Jim Conrad