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thiolliericrinid crinoids from the lower cretaceous of crimea

thiolliericrinid crinoids from the lower cretaceous of crimea

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— 643 —Dimensions :Ht = 4.5 - 9.5 mm ; Dt = 5.9 - 15.7 mm ; De = 3.7- 10.2 mm ; A f = 41 - 42° ; H r : H t = 0.32 - 0.38 ;Bf : Lf = 0.48 - 0.66.Comparison :L. asper differs <strong>from</strong> o<strong>the</strong>r species <strong>of</strong> <strong>the</strong> genus byvery large convex radiais and by its coarse pustulatesculpture.Materials :3 calixes, 5 centrodorsals, 1 radial ring, 12 brachials,95 columnals (see table 1).D e r iv a t io n o m i n i s :Loriolicrinus laevis nov. sp.fig. 9 A-D ; pl. 1, fig. 6The name <strong>of</strong> <strong>the</strong> species comes <strong>from</strong> « laevis »(smooth in Latin).H o l o t y p e :CK-80-1 (fig. 9 A) ; Leningrad Mining Institute.T y p e l o c a l it y :Rodnoie, Chornaya Basin, Crimea.Distribution :Berriasian ; Crimea.T y p e l e v e l :Upper Berriasian.Fig. 9 — Calyxes, centrodorsals and brachials <strong>of</strong> Loriolicrinus (x 3).A - L. laevis, holotype CK-80-1 (calyx <strong>from</strong> side and below).В - L. laevis, CK-18-1 (centrodorsal <strong>from</strong> above).С - L. laevis, CK-90-5 (young calyx <strong>from</strong> side).D - L. laevis, CK-90-6 (secondaxillary <strong>from</strong> below, side and above).E - L. perforatus, holotype CK-95-1 (calyx <strong>from</strong> side).Coupes dorsales, centrodorsales et brachiales de Loriolicrinus.A - L. laevis, holotype CK-80-1 (coupe dorsale vue de côté et en dessous).B - L. laevis, CK-18-1 (centrodorsale vue en dessus).С - L. laevis, CK-90-5 (coupe dorsale jeune vue de côté).D - L. laevis, CK-90-6 (secundaxillaire vue en dessous, de côté et en dessus).E - L. perforatus, holotype CK-95-1 (coupe dorsale vue de côté).

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