Grypoceratidae

Grypoceratidae is the longest-lived family of the Trigonocerataceae, or of the near equivalent Centroceratina; members of the Nautilida from the Upper Paleozoic and Triassic.(Kummel 1964)

Grypoceratidae

Grypoceratidae is the longest-lived family of the Trigonocerataceae, or of the near equivalent Centroceratina; members of the Nautilida from the Upper Paleozoic and Triassic.(Kummel 1964)