Biostratigraphy and faunas of the Permian Ishbel Group, Canadian Rocky Mountains

A. Logan, and A. McGugan

1968

Article

Journal of Paleontology 42(5):1123-1139

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Taxa discussed in this work:

• Sphenosteges hispidus

Taxonomy:

• Sphenalosia smedleyi belongs to Sphenalosia - Logan and McGugan (1968)
• Omphalotrochus whitneyi belongs to Omphalotrochus - Logan and McGugan (1968)