Hunt and his colleagues drew on large collections of ostracod fossils from the Smithsonian's National Museum of Natural History, the University of Southern Mississippi, and Louisiana State University, as well as additional fossils they collected themselves, to investigate whether species in which this male / female distinction was most prominent had been more vulnerable than others to changes in their environments. (sciencedaily.com)
There are two separate instances of bioluminescence in ostracods. (sciencedaily.com)