FIGURE 26 in New insights on Tournaisian-Visean (Carboniferous, Mississippian) athyridide, orthotetide, rhynchonellide, and strophomenide brachiopods from southern Belgium

FIGURE 26. Nucleospira hannoniae nom. nov., from the Tournai area, Tournai Formation (Tournaisian). 1-2, RBINS a13137, distorted and incomplete specimen in dorsal view showing two whorls of the spiralium and detail of one of the cyrtomatodont teeth. 3-4, RBINS a13138, distorted articulated specimen in dorsal view displaying a circular drill hole and detail of the latter. 5, RBINS a13139, distorted articulated specimen with a circular drill hole in ventral view. Scale bars equal 2 mm (1, 3, 5), 0.5 mm (2, 4).