Brachiopoda

Quadrithyris trio (Barrande, 1848)

Synonymy list
1847     Spirifer trio — Barrande, pp. 118
1959     Delthyris (Quadrithyris) trio (Barrande, 1848) — Havlicek, pp. 120-122, fig. pl. 24: 5, 7