Spirillina concavoconvexa Galloway and Ryniker, 1930 type specimen holotype Carboniferous American South | ||||
Spirillina eichbergensis (Kuebler and Zwingli, 1870) identified by scientist Jurassic East European Platform | ||||
Spirillina polygyrata Bartenstein and Brand, 1937 identified by scientist Jurassic off Biscaya and Iberia | ||||
Spirillina polygyrata Bartenstein and Brand, 1937 identified by scientist Jurassic off Biscaya and Iberia | ||||