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Open AccessA sclerite-bearing stem group entoproct from the early Cambrian and its implications
The Lophotrochozoa includes disparate tentacle-bearing sessile protostome animals, which apparently appeared in the Cambrian explosion, but lack an uncontested fossil record. Here we describe abundant well pre...
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Liu et al. reply
Replying to R. C. P. Mounce & M. Wills Nature 476, 10.1038/nature10266 (2011); D. A. Legg et al. Nature 476 10.1038/nature10267 (2011)