New and unusual upper Llandovery graptolites from Arctic Canada

A. C. Lenz, and A. Kozowska

2007

Article

Acta Palaeontologica Polonica 52(3):489-502

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Taxa discussed in this work:

• Giganteograptus
• Mirorgraptus
• Pileograptus

Taxonomy:

• Mirorgraptus belongs to Retiolitidae - Lenz and Kozowska (2007)
• Giganteograptus belongs to Plectograptinae - Lenz and Kozowska (2007)
• Pileograptus belongs to Retiolitinae - Lenz and Kozowska (2007)