M.
D.
Brasier
, 2013. Cambrian Evolutionary Radiation: Context, Correlation, and Chronostratigraphy—Overcoming Deficiencies of the First Appearance Datum (FAD) Concept. Earth-Science Reviews 123, 133-172. doi:10.1016/j.earscirev.2013.03.008
, 2015. Distinguishing Earth’s oldest bryozoan (Pywackia, Late Cambrian) from pennatulacean octocorals (Mesozoic–Recent). Journal of Paleontology 89, 292-317. doi:10.1017/jpa.2014.26
, 2015. Distinguishing Earths Oldest Bryozoan (Pywackia, Late Cambrian) from Pennatulacean Octocorals (Mesozoic-Recent). Journal of Paleontology 89, 292-317. doi:10.1017/jpa.2014.26