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A new species of abundant macrofossil, previously described informally as a ‘string of beads’, is here assigned to the genus Horodyskia Yochelson and Fedonkin, 2000, and formally named Horodyskia williamsii. It is known from Mesoproterozoic siliciclastic rocks that are older than 1070Ma and younger than 1465Ma; the Backdoor Formation of the Collier Group, and the poorly time-constrained, but probably...
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