
The type species of three Upper Palaeozoic punctate spiriferoids
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The type species of Spiriferellina Fredericks, Reticularnna Fredericks and Punctospirifer North are redescribed from type material.
Citations
CAMPBELL, K. S. W. 1959. The type species of three Upper Palaeozoic punctate spiriferoids. Palaeontology, 1, 4, 351–363.