Fig. 10. The lecanocrinid species Ammonicrinus sulcatus from locality 1 in Revision of the flexible crinoid genus Ammonicrinus and a new hypothesis on its life mode

Fig. 10. The lecanocrinid species Ammonicrinus sulcatus from locality 1 (A–G, I–Q) and 2 (H) (see Appendix 1). A–D. Facet views of GIK−2104–2107, showing nodular tubercles and spine−tubercles on exterior flanks of the columnals of the mesistele. E. Facet view (E1) and view of the exterior flank of a specimen (E2) (GIK−2108), showing tubercles and spine−tubercles on exterior flank of the columnal of the mesistele. F. Facet view of a specimen (GIK−2109), showing tubercles and spine−tubercles on exterior flank of the columnal of the mesistele. G. Facet view of a strongly sculptured columnal (GIK−2110) of the distal−most mesistele, showing connection to the dististele. H. Facet view of a columnal of the distal−most mesistele (GIK−2111), showing long LCEE and connection to the dististele. I. Facet view of a columnal of the distal−most mesistele (GIK−2112), showing relatively long LCEE and connection to the dististele. J. Interior view of a distal−most, barrel−like columnal of the mesistele (GIK−2113) with LCEE. K. Interior view of a distal−most, barrel−like columnal of the mesistele (GIK−2114), with partly preserved LCEE. L. Facet view of a juvenile distal columnal of the mesistele (GIK−2115) with nodular tubercles on exterior flank and on LCEE. M–N. Juvenile columnals of the proximal mesistele in facet views, showing well developed nodes on exterior flanks. M. GIK−2116. N. GIK−2117. O. Facet view of a juvenile distal columnal of the mesistele (GIK−2118) with nodular tubercles on exterior flank and on LCEE. P. Lateral view (P1) and view of the exterior flank (P2) of the partly preserved mesistele (GIK−2119); the specimen shows nodular tubercles, spine−tubercles and a few partly preserved spines (arrow). Q. Facet view (Q1) and lateral view (Q2) of a cracked, coiled mesistele (GIK−2120), showing several tuberculated and concave ossicles of the cup (arrows). Scale bars 10 mm.