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"Hildoceras" chrysanthemum Yokoyama Hayami, I., 1961c p. 276, pl. 14, fig. 1a, b Mesozoic | Mollusca : Cephalopoda Material Reports, no. 2, p. 34. |
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Hildoceras chrysanthemum Yokoyama Shikama, T., 1964 p. 154, pl. 54, fig. 2 Mesozoic | Mollusca : Cephalopoda Material Reports, no. 15, p. 163. |
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Hildoceras chrysanthemum Yokoyama Lectotype Yokoyama, M., 1904b p. 11, pl. 2, fig. 1 Mesozoic | Mollusca : Cephalopoda Material Reports, no. 2, p. 300. |
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Hildoceras chrysanthemum Yokoyama Paralectotype Yokoyama, M., 1904b p. 11, pl. 2, fig. 2 Mesozoic | Mollusca : Cephalopoda Material Reports, no. 2, p. 300. |
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Hildoceras chrysanthemum Yokoyama Paralectotype Yokoyama, M., 1904b p. 11, pl. 2, fig. 3 Mesozoic | Mollusca : Cephalopoda Material Reports, no. 2, p. 300. |
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Hildoceras chrysanthemum Yokoyama Paralectotype Yokoyama, M., 1904b p. 11, pl. 2, fig. 4 Mesozoic | Mollusca : Cephalopoda Material Reports, no. 2, p. 300. |
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