World A ‘sea monster’ from 500 million years ago: Scientists say this creature had 18 tentacles March 26, 2019March 27, 2019Ryan W. Miller, USA TODAYComments Off on A ‘sea monster’ from 500 million years ago: Scientists say this creature had 18 tentacles Researchers say the Daihua sanqiong fossil, found in the Yunnan Province in South China, may be an ancestor of comb jellies.
