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).

by Melanie J Hopkins, Feiyang Chen, Shixue Hu, Zhifei Zhang
Published 2017-01-01

Ignoring Fossil Age Uncertainty Leads to Inaccurate Topology and Divergence Time Estimates in Time Calibrated Tree Inference

by Joëlle Barido-Sottani, Joëlle Barido-Sottani, Joëlle Barido-Sottani, Nina M. A. van Tiel, Nina M. A. van Tiel, Melanie J. Hopkins, David F. Wright, David F. Wright, Tanja Stadler, Tanja Stadler, Rachel C. M. Warnock
Published 2020-06-01