Ophiuroidea source details
Clark, W.B. (1893). Mesozoic Echinodermata of the United States. U.S. Geological Survey Bulletin, 97, 1-30.
172286
Clark, W. B.
1893
Mesozoic Echinodermata of the United States
U.S. Geological Survey Bulletin
97: 1-30
Publication
America, North
Paleontology, Fossils, Paleobiology