Assertion: mastodon's femur | /r/CapableOf | use 4.3-kg andesite cobble hammer
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Source sentences:
text: The femur was placed on a wooden anvil and fractured using a 4.3-kg andesite cobble hammer (which tapered to a 3 × 5 cm point) hafted onto a 1.2-m-long wooden handle (Extended Data Fig.