additional source
van der Ham, R. W. J. M., Jagt, J. W. M. & Janssens, H. J. 2011. Leymeriaster campestris, a new early Campanian hemiasterid echinoid from southern Limburg, the Netherlands. Netherlands Journal of Geosciences — Geologie en Mijnbouw 90, 179-185., available online at https://doi.org/10.1017/s0016774600001098 [details]
From editor or global species database
Fossil range Late Cenomanian to Late Maastrichtian [details]

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