Muscle scars, shell form and torsion in Cambrian and Ordovician univalved molluscs

B. Runnegar

1981

Article

Lethaia 14:311-322

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Taxa discussed in this work:

• Yuwenia
• Yuwenia bentleyi

Taxonomy:

• Yuwenia belongs to Onychochilidae - Runnegar (1981)
• Palliseria longwelli belongs to Palliseria - Runnegar (1981)