Neoglyphea inopinata
... that until the discovery in 1975 of the "living fossil" Neoglyphea inopinata , glypheoid crustaceans were thought to have been extinct since the Eocene?
... that until the discovery in 1975 of the "<a href="./Living_fossil" id="mwDNs" rel="mw:WikiLink" title="Living fossil">living fossil</a>" <i id="mwDNw"><b id="mwDN0"><a href="./Neoglyphea" id="mwDN4" rel="mw:WikiLink" title="Neoglyphea">Neoglyphea inopinata</a></b></i> <i id="mwDN8">(pictured)</i>, <a href="./Glypheoidea" id="mwDOA" rel="mw:WikiLink" title="Glypheoidea">glypheoid</a> <a href="./Crustacean" id="mwDOE" rel="mw:WikiLink" title="Crustacean">crustaceans</a> were thought to have been extinct since the <a href="./Eocene" id="mwDOI" rel="mw:WikiLink" title="Eocene">Eocene</a>?