Galapagos Seaweed (Dictyota galapagensis)
This marine algae species was endemic to the ocean surrounding the Galápagos Islands.
The species disappeared after a decastating El Niño event in 1982/83 and is now considered extinct.
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References:
[1] Graham J. Edgar; Stuart A. Banks; Margarita Brandt; Rodrigo H. Bustamantes; Angel Chiriboga; Lauren E. Garske; Peter W. Glynn; Jack S. Grove; Scott Henderson; Cleve P. Hickman; Kathy A. Miller; Fernando Rivera; Gerald M. Wellington: El Niño, grazers and fisheries interact to greatly elevate extinction risk for Galapagos marine species. Global Change Biology 16: 2876-2890. 2010
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edited: 29.11.2018