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Ceratite nodosus, vintage engraved illustration. Earth before man 1886.
Trias, vintage engraved illustration. Dictionary of words and things - Larive and Fleury - 1895.
A typical representation of, 'Ammonites nodosus', with ceratitic suture pattern on its shell and frilly saddles that appear might be due to the increased pressure on the shell at greater depth, vintage line drawing or engraving illustration.