Late Permian ammonoids from the Soviet far east

V. E. Ruzhentsev

1976

Article

Paleontological Journal 10(3):277-290

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Taxa discussed in this work:

• Difuntites hidius
• Neogeoceras thaumastum
• Roadoceras prodromus
• Timorites sigillarius
• Waagenoceras obliquum

Taxonomy:

• Waagenoceras obliquum belongs to Waagenoceras - Ruzhentsev (1976)
• Neogeoceras thaumastum belongs to Neogeoceras - Ruzhentsev (1976)