Jagt, J. W. M. & Ham, R. W. J. M. v. d. 1995. First record of the echinoid genus Tylocidaris Pomel 1883 from the type Maastrichtian of the Netherlands. Paläontologische Zeitschrift 69, 233-239.
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Jagt, J. W. M.; R W J M v d Ham
1995
First record of the echinoid genus Tylocidaris Pomel 1883 from the type
Maastrichtian of the Netherlands. Paläontologische Zeitschrift