New Upper siluric fauna from southern Michigan

W. H. Sherzer, and A. W. Grabau

1910

Article

Geological Society of America Bulletin 19:540-553

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Taxa discussed in this work:

• Acanthonema
• Acanthonema holopiforme
• Acanthonema laxa
• Hippocardia monroica
• Hormotomina tricarinata
• Microdoma tricarinatus
• Murchisonia subcarinata
• Murchisonia tricarinata
• Pleurotrochus
• Pleurotrochus bicarinatus

Taxonomy:

• Pleurotrochus bicarinatus belongs to Pleurotrochus - Sherzer and Grabau (1910)