Leymeriaster peripetalous fascioles

Description:

Peripetalous fasciole of Leymeriaster campestris (A) (NHMM 2011 014, holotype), compared to that of L. maestrichtensis (B) (see Van der Ham, 1995, fig. 4b), L. eluvialis (C) (see Van der Ham, 1995, fig. 4a) and L. leymerii (D) (lower Turonian, Briollay, Anjou, France). Scale bar equals 10 mm. from 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.