The type species of three Upper Palaeozoic punctate spiriferoids

1 4 January 351 363

CAMPBELL, K. S. W. 1959. The type species of three Upper Palaeozoic punctate spiriferoids. Palaeontology1, 4, 351–363.

K. S. W. Campbell The type species of Spiriferellina Fredericks, Reticularnna Fredericks and Punctospirifer North are redescribed from type material. The Palaeontological Association (Free Access)