The brachiopods Alwynella and Grorudia: homeomorphic plectambonitoids in the Middle and Upper Ordovician of Baltoscandia

L. Hints, and D. A. T. Harper

2008

Article

Transactions of the Royal Society of Edinburgh 98:271-280

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Taxa discussed in this work:

• Allwynellidae
• Alwynella
• Alwynella ildjernensis
• Alwynella intermedia
• Alwynella osloensis
• Alwynellidae
• Grorudia glabrata
• Grorudia grorudi
• Grorudia morrisoni

Taxonomy:

• Grorudia glabrata belongs to Grorudia - Spjeldnaes (1957)
• Alwynellidae belongs to Plectambonitoidea - Hints and Harper (2008)
• Allwynellidae belongs to Plectambonitoidea - Hints and Harper (2008)
• Alwynella belongs to Allwynellidae - Hints and Harper (2008)
• Alwynella osloensis belongs to Alwynella - Hints and Harper (2008)
• Grorudia grorudi belongs to Grorudia - Hints and Harper (2008)
• Alwynella intermedia belongs to Alwynella - Hints and Harper (2008)
• Alwynella ildjernensis belongs to Alwynella - Hints and Harper (2008)
• Grorudia belongs to Grorudiidae - Hints and Harper (2008)
• Grorudia morrisoni belongs to Grorudia - Hints and Harper (2008)