Permian Gastropoda of the southwestern United States: Cerithiacean, Acteonacea, and Pyramidellacea

D. H. Erwin

1988

Article

Journal of Paleontology 62(4):566-575

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Taxa discussed in this work:

• Acteoninidae
• Bicuerda columnare
• Donaldina gracilis
• Donaldina knighti
• Girtyspira yodai
• Metorthonema
• Metorthonema distortum
• Metorthonema sinistrale
• Orthonema illineatus
• Orthonema paedice
• Orthonema paxillus
• Orthonema telescopiforme
• Orthonema tricingulatum
• Streptacis inflata
• Streptacis piercei

Taxonomy:

• Metorthonema distortum belongs to Metorthonema - Erwin (1988)
• Metorthonema sinistrale belongs to Metorthonema - Erwin (1988)
• Orthonema illineatus belongs to Orthonema - Erwin (1988)
• Orthonema paxillus belongs to Orthonema - Erwin (1988)
• Orthonema paedice belongs to Orthonema - Erwin (1988)
• Orthonema striatonodosum belongs to Orthonema - Erwin (1988)
• Orthonema tricingulatum belongs to Orthonema - Erwin (1988)
• Donaldina knighti belongs to Donaldina - Erwin (1988)
• Streptacis inflata belongs to Streptacis - Erwin (1988)
• Streptacis piercei belongs to Streptacis - Erwin (1988)
• Girtyspira yodai belongs to Girtyspira - Erwin (1988)