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Comment on: \ Alvaro, J. J., Esteve, J. \& Zamora, S. 2019. Morphological assessment of the earliest paradoxidid trilobites (Cambrian Series 3) from Morocco and Spain. Geological Magazine 156, 1691-1707. doi:10.1017/S0016756818000961
, 2019. A new look at Eccaparadoxides (Cambrian, Trilobita) and its biostratigraphic significance. PalZ doi:10.1007/s12542-021-00580-9
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