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The oldest known digestive system consisting of both paired digestive glands and a crop from exceptionally preserved trilobites of the Guanshan Biota (Early Cambrian, China)
Hopkins MJ,
Chen F,
Hu S,
Zhang Z
(2017)
The oldest known digestive system consisting of both paired digestive glands and a crop from exceptionally preserved trilobites of the Guanshan Biota (Early Cambrian, China).
PLOS ONE 12(9): e0184982.
https://doi.org/10.1371/journal.pone.0184982