. _:b75984538 . . . . "Dictyoceras virchowii" . . . _:b75984538 "5955831" . _:b75984538 . _:b76733928 . "Dictyoceras virchowii Haeckel, 1862" . _:b76733928 "WoRMS id" . "Dictyoceras virchowii" . . _:b76733928 "549508" . _:b76733928 . "Haeckel, 1862" . _:b75984538 "GBIF id" . _:b75984538 . . _:b76733928 . . "549508" . . "975840" . "5955831" .