New encrinurid trilobites from the Galena Formation (Ordovician) of Wisconsin and Iowa

R. P. Tripp

1974

Article

Journal of Paleontology 48(3):485-488

Find it at:

http://dx.doi.org/10.2307/1303135

Taxa discussed in this work:

• Encrinurus spicatus
• Erratencrinurus spicatus

Taxonomy:

• Encrinurus spicatus belongs to Encrinurus - Tripp (1974)
• Amphilichas antiquarius belongs to Amphilichas - Tripp (1974)