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†Quadrithyrina Havlicek 1959
urn:lsid:organismnames.com:name:2690896
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†Quadrithyrina Havlicek 1959
Havlicek 1959. The Spiriferidae of the Silurian and Devonian of Bohemia. Rozpravy Geologickeho Ustavu Ceskoslovenske, 25 1959: 1-275