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pro vyhledávání: '"Nikki E. Zehler"'
Autor:
William I. Ausich, Nikki E. Zehler
Publikováno v:
Journal of Paleontology. 97:380-385
Zygocycloides? foerstei n. sp. is described from the Llandovery (Aeronian) Brassfield Formation of southwestern Ohio. This is among the oldest reported Silurian cyclocystoids from North America and is the only North American Llandovery cyclocystoid t