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:
PZSLPlateRadiata. Heterocyathus quicostatus MilneEdwards HaimeMilneEdwards Haime GrayJ Gray Gray Gray Gray Grey GrayJ Gray segment br en Skeletons of soft coral and four stone coral species Proceedings of the Zoological Society of London archive org vol org page plate Radiata II published Wing PDold PZSL Anthozoa Cnidaria