Ancyrochitina sp. A

Morávek, Radek, 2009, Lower Wenlock Chitinozoa From The Bykoš Locality (Silurian, Prague Basin, Barrandian Area, Czech Republic), Acta Musei Nationalis Pragae Series B 65 (1 - 2), pp. 37-60 : 45

Ancyrochitina sp. A

D e s c r i p t i o n: Chitinozoa with lenticular shaped chamber. The chamber constitutes one third to half of the vesicle length. The neck is tubular, slightly flaring. Only remnants of the spines are observed on the neck. The broadly rounded basal edge bears processes, sometimes very long.

D i s c u s s i o n: Some specimens of Ancyrochitina sp. B can resemble Ancyrochitina sp. A . There is a slight difference between the lenticular shape of vesicle and conical shape of vesicle with convex flanks and convex base. Specimens of these two species could not be to distinguished by the size variation.