Source: Stromer, E. (1915). Ergebnisse der Forschungsreisen Prof. E. Stromers in den Wüsten Ägyptens. II. Wirbeltier-Reste der Bahariye-Stufe (unterstes Cenoman). 3. Das Original des Theropodes Spinosaurus aegyptiacus nov. gen., nov. spec. Abhandlungen der Königlich Bayerischen Akademie der Wissenschaften, Mathematisch-physikalische Klasse 28(3):1–32.
Translation of title: "Results of Prof. E. Stromer's Research Expedition in the Deserts of Egypt. II. Vertebrate Remains from the Baharije Beds (lowermost Cenomanian). 3. The Type of the Theropod Spinosaurus aegyptiacus nov. gen., nov. spec."
The PNG file shows Stromer's drawings of the Spinosaurus mandible (lower jaw). In specific, the file shows items 12a and 12b (right mandibular ramus from lateral and dorsal views) from Plate I.
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