S. K Donovan and J. WM Jagt (2013)
Aspects of clavate borings in the type Maastrichtian (Upper Cretaceous) of the Netherlands and Belgium
Netherlands Journal of Geosciences / Geologie en Mijnbouw, vol. 92 -2/3 p. 133-143.
15643, .94, 107, Lg, MEUSE2, CRET, PAL
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