1) trilobiteNoun
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An extinct arthropod that was abundant in Paleozoic times; had an exoskeleton divided into 3 parts The presence of the trilobate arrowheads leads me to believe this pit dates back to the late Phrygian period | حجری دور کے سہ لختہ دار بحری جانور جو اب ناپید ہو چکے ہیں |