| Title |
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| Treatise on Invertebrate Paleontology. Part K. Mollusca 3. Cephalopoda- General Features Endoceratoidea - Actinoceratoidea- Nautiloidea Bactritoidea. Author: Teichert, Curt et al. (Moore, Raymond C. Ed.) 1964 Geological Society of America and University of Kansas Press |