Amaltheus
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- Size−Shape Relationships in the Mesozoic Planispiral Ammonites
- The Lower Cretaceous Ammonitina Olcostephanus, Leopoldia, Aa® Favrella from West-Central Argentina
- Litho- and Biostratigraphy of the Upper Triassic–Middle Jurassic in Scania, Southern Sweden
- Biostratigraphic Characterization Oflower Jurassic Deposits of Georgia by Ammonites
- Lower Jurassic (Pliensbachian and Toarcian) Ammonites from Eastern Oregon and California
- Geological Survey Canada
- Ammonites from Lac De Charmes (Haute-Marne, France): Systematic, Biostratigraphy and Palaeobiogeography