A well-preserved microscopic fossil flatworm, Brabbinthes churkini (new genus, new species), has recently been found in a siliceous shale in the Tindir Group in eastern Alaska. This tissue-grade metazoan fossil is of unusual interest because of the apparent late Precambrian age of the rock and because flatworms are thought to represent an important stage in the development of other metazoan groups. Morphologic features in Brabbinthes suggest ancestry among the medusoid cnidarians.

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