Anthinocrinidae Yeltyschewa and Sisova

Głuchowski, Edward, Casier, Jean-Georges & Olempska, Ewa, 2006, Crinoid and ostracod succession within the Early-Middle Frasnian interval in the Wietrznia quarry, Holy Cross Mountains, Poland, Acta Palaeontologica Polonica 51 (4), pp. 695-706 : 699

Family Anthinocrinidae Yeltyschewa and Sisova in Schevtschenko, 1966

Anthinocrinus wenjukowi Yeltyschewa in Yeltyschewa and Stukalina, 1977 ( Fig. 3G ).—The species was first described from Frasnian Tschudov Beds of Novaya Zemlya, Russia ( Yeltyschewa and Stukalina 1977) and was also reported from other Early Frasnian localities in the Holy Cross Mountains (see Głuchowski 1993).

Floricrinus sp. ( Fig. 3F ).—The columnals are pentagonal to rounded pentagonal with smooth latus. The articular facet is flat with very well developed pentalobate areola surrounded by crenularium composed of short, moderately thick culmina. The medial culmina between petals form distinctive pattern of V's or Y's. The petals are drop−like in outline, separated by faint ridges diminishing toward the lumen and composed of very weakly developed adradial crenulae. The lumen is pentagonal, rounded. Generally, the articulum resembles that of Floricrinus proteus Stukalina, 1977 described from Pragian Sardzhal Horizon of Northern Pribalkhasch, Kazakhstan ( Stukalina 1977), but differs in having very weakly developed crenulae separating the petals.

Figures

Fig. 3. Early–Middle Frasnian crinoids from the Wietrznia Ie section, Holy Cross Mountains. A, B. Platycrinites sp. A. GIUS−4−404/2, sample Ie−66, articular facet with very weakly developed fulcrum. B. GIUS−4−404/3, sample Ie−66, articular facet with marginal culmina. C, D. Haplocrinites sp. C. GIUS−4−404/5, sample Ie−48, theca from A−ray side. D. GIUS−4−404/6, sample Ie−48, theca from E−ray side. E. Cupressocrinites sp., GIUS−4−404/8, sample Ie−19. F. Floricrinus sp., GIUS−4−404/6, sample Ie−66. G. Anthinocrinus wenjukowi Yeltyschewa in Yeltyschewa and Stukalina, 1977, GIUS−4−404/15, sample Ie−34. H. Marettocrinus kartzevae (Yeltyschewa and Dubatolova in Dubatolova and Yeltyschewa, 1961), GIUS−4−404/10, sample Ie−19.I. Laudonomphalus humilicarinatus (Yeltyschewa in Dubatolova and Yeltyschewa, 1961), GIUS−4−404/7, sample Ie−19. J. Kstutocrinus sp., GIUS−4−404//13, sample Ie−66. K. Schyschcatocrinus multiformis Głuchowski, 1993, GIUS−4−404/16, sample Ie−19. L. Schyschcatocrinus delicatus Głuchowski, 1993, GIUS−4−404/14, +