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Restoration of under side of a trilobite

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Restoration of under side of a trilobite.jpg CarvingsThumbnailsPrehistoric carving of the MammothCarvingsThumbnailsPrehistoric carving of the MammothCarvingsThumbnailsPrehistoric carving of the MammothCarvingsThumbnailsPrehistoric carving of the MammothCarvingsThumbnailsPrehistoric carving of the MammothCarvingsThumbnailsPrehistoric carving of the MammothCarvingsThumbnailsPrehistoric carving of the Mammoth

Restoration of under side of a trilobite (Triarthrus becki), the trunk limbs bearing small triangular respiratory lobes or gills.—After Beecher.