Article: Enigmas overturned by Chinese fossils. (problematic Cambrian fossils now classified in the phylum Onychophora)

With the help of a new fossil discovered in China, paleontologists are starting to make sense out of some of the most problematic and bizarre animals known in Earth's history. Several of these strangers from 530 million years ago -- previously viewed as failed evolutionary experiments, with no counterparts in the modern world -- now appeear to fit into an existing animal phylum.

The newly found caterpillar-like animal is among the latest prizes to emerge from an extraordinary set of fossil beds in the Chengjiang area of southwestern China. The dozens of species discovered so far within these rich formations are painting a picture of life in the early Cambrian ...

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