cephalon
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cephalon |
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| navigate by keyword : abstract cephalon dalmanites exoskeletons fossile fossiles geologic geological glabella glabellar head mineral mosaic natural nature natures nnthe ocean oceans parabolic phacopida prehistoric rock rocks schizochroal sea seas semicircular shaped skeleton skeletons trilobite trilobites |
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| Dalmanites is a genus of trilobite in the order Phacopida. The trilobites of this genus have slightly convex exoskeletons with an average length of 4ââ¬â7 cm (1.5 - 2.75 in). The cephalon is semicircular or parabolic. The glabella (center portion of the head) is often pear-shaped, and tapers outward toward the front. The glabella also always contains three pairs of obvious glabellar furrows. Also prominent are the large mosaic (schizochroal) eyes. |
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