Čeština: Mušle vyhynulého druhu ústřic Gryphaea arcuata(ústřice pěnivá) nález z roku 1801, jinak nazývaná i Devil's Toenail (Ďáblův nehet); výška 4,5 cm nalezena na území Black Jurassic α III, z geologického období pozdní jury.
Français : Coquilles fossilisées de gryphée arquée (Gryphaea arcuata) une espèce éteinte de mollusques proche de l'huître ayant vécu du Trias supérieur au Crétacé. Ces fossiles ont été retrouvés dans le Bade-Wurtemberg, en Allemagne.
Magyar: Gryphaea arcuata (Lamarck, 1801); hosszúsága 4,5 cm; a kora jura földtörténeti időszakból
Nederlands: Circa 4½ cm lange schelp van Gryphaea arcuata, een uitgestorven oester uit de vroege Jura
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Gryphaea arcuata Lamarck, 1801, Unghia del diavolo; altezza 4,5 cm; Nero Giurassico α III; vicino a Engstlatt, Baden-Württemberg, Germania; Guscio di propria collezione, quindi non geocodificato.