最終更新日:2022/12/23
A study of over 1500 specimens of Haplophrentis, a mid-Cambrian hyolithid from the celebrated Burgess Shale in the Canadian Rockies and the Spence Shale from Utah, has revealed the details of its soft parts.
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A study of over 1500 specimens of Haplophrentis, a mid-Cambrian hyolithid from the celebrated Burgess Shale in the Canadian Rockies and the Spence Shale from Utah, has revealed the details of its soft parts.