phacops |
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| navigate by keyword : ancient animal arthropod biology brown cephalon compound concept devonian ecology eldredgeops evolution exoskeleton extinction eyes fossil geology gray invertebrate isolated macro middle milleri neutral old palaeontology paleontology period phacops photography prehistoric rana science stone trilobite |
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| Phacops rana Eldredgeops rana is a species of trilobite from the middle Devonian period |
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