Exaesiodiscidae Moore and Jeffords, 1968

Głuchowski, Edward, 2002, Crinoids from the Famennian of the Holy Cross Mountains, Poland, Acta Palaeontologica Polonica 47 (2), pp. 319-328 : 323

Family Exaesiodiscidae Moore and Jeffords, 1968 Cyclostelechus ? sp. ( Fig. 3X ).—The material contains 7 very poorly preserved discoidal columnals with pointed epifacet. The lumen is very small, pentagonal? surrounded by depressed, smooth areola. The crenularium is very narrow, extremely weakly marked (damaged?). The shape of some columnals is somewhat convergent with Exaesiodiscus Moore and Jeffords. Occurs in the Pa. crepida to S. praesulcata zones: Kowala (samples Ko−B and C), Kadzielnia and also in the latest Famennian of Dębnik, Cracow Region.

Family incertae sedis

Dronovicrinus notabilis Stukalina, 1977 ( Fig. 3R, S ).—The material contains 5 circular, relatively high columnals with convex, smooth latus. The articular facet is flat with pentagonal lumen. The areola is smooth and bordered by narrow crenularium composed of straight, coarse and rarely dichotomous culmina. Occurs in the Pa. crepida to Pa. marginifera zones: Kowala (sample Ko−B), Kadzielnia. The species was first described from the late Famennian of the Middle Afghanistan ( Stukalina 1997).

Figures

Fig. 3. A–E. Cyclocaudiculus longus Głuchowski, 1986, GIUS−4−504/1−5, Besówka, × 10. F–K. Acbastaucrinus affectatus Sisova, 1988, GIUS−4−149/1−6, Ostrówka, × 20. L–N. Kstutocrinus sp., GIUS−4−455/10−12, Psie Górki, sample PG−A, × 10. O–Q. Cyclocion sp., GIUS−4−428/1−3, Kowala, sample Ko−B, × 10. R, S. Dronovicrinus notabilis Stukalina, 1997. R. GIUS−4−445/9, Kostomłoty, × 10. S. GIUS−4−91/20−21, Kadzielnia, × 7. T, U. Taranshicrinus vulgaris Sisova, 1988. T. GIUS−4−11/1−2, Góra Łgawa, × 7. U. GIUS−4−431/1, Psie Górki, sample PG−B, × 10. V, W. Tjeecrinus insectus (Yeltyschewa in Dubatolova, 1964), GIUS−4−91/37−38, Kadzielnia, × 10. X. Cyclostelechus? sp., GIUS−4−149/10, Ostrówka, × 15.