Category:A monograph of the trilobites of North America: with coloured models of the species
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Media in category "A monograph of the trilobites of North America: with coloured models of the species"
The following 7 files are in this category, out of 7 total.
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A monograph of the trilobites of North America BHL21270403.jpg 2,028 × 3,450; 897 KB
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A monograph of the trilobites of North America BHL21270406.jpg 1,780 × 3,484; 651 KB
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A monograph of the trilobites of North America BHL21270407.jpg 1,780 × 3,484; 804 KB