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:
The Quarterly journal of the Geological Society of London . THE BEITISn SECOXDART ROCKS ACTINOMETRA LoY Sp This fossil consists of the centrodorsal radials and first two brachials of what must have been large Actinometra The centro dorsal is exceedingly peculiar and but for my experience with the ' Challenger ' Comatulce should