thiolliericrinid crinoids from the lower cretaceous of crimea

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— 641 —Dimensions :Ht = 10.3 - 11.1 mm ; Dt = 13.5 - 16.3 mm ; De =7.2 - 9.8 mm ; A f = 38 - 42° ; Hr : H t = 0,31 - 0.44 ;Bf : Lf = 0.36 - 0.41.Comparison :В. maximus differs from В. lorioli by a massivelarge calyx and a low centrodorsal with the flat basis.Materials :2 calyxes, 2 centr odor sals, 3 radiais, 2 brachials, 23columnals (see table 1).Distribution :Berriasian ; Crimea.Genus Loriolicrinus Jaek el, 1918Loriolicrinus sp. (= Thiolliericrinus flexuosus DeL o r i o l , 1889, pi. 229, fig. 3,6). Kimmeridgian ofFrance.Solanocrinites jaegeri Q u e n s t e d t , 1852 (p. 601, pi.51, fig. 33) (non Solanocrinites jaegeri Goldfuss 1826-1833, p. 168, pi. 50, fig. 9 = Chariocrinus ? jaegeri)(Solanocrinites jaegeri : Quenstedt 1858, p. 723, pi.88, fig. 12 ; 1876, p. 177, pi. 96, fig. 51 . Schliiter1878, p. 36,37 ; Carpenter 1881a, p. 215, pi. 11, fig.22 ; De Loriol 1889, p. 559 ; Gislén 1924, p. 110 ;Thiolliericrinus ? jaegeri Carpenter 1881a, p. 209).Kimmeridgian of Germany.Upper Jurassic (Oxfordian) - Lower Cretaceous(Valanginian) ; Portugal, France, Germany, Crimea.Loriolicrinus insuetus (De L o r i o l , 1891, p. 167, pi.29, fig. 23-29 sub Thiolliericrinus) (Loriolicrinusinsuetus : Jaekel 1918, p. 72, fig. 65 ; Gislén 1924, p.190, 207 . Roux 1978a, p. 234 ; 1978b, p. A 21 ; Rasmussen1978c, p. 881, fig. 588-1). Lusitanian ; Serradas Figueiras (Algarve), Portugal (fig. 8 A).1918 — Loriolicrinus : Ja ek el, p. 72.1924 — Loriolocrinus Jaekel : Gislén, p. 190, 207.1933 — Loriolocrinus Jaekel : Dacqué, p. 104.1978a — Loriolocrinus Jaekel : Roux, p. 234.1978b — Loriolicrinus JAEKEL : Roux, p. A 21.1978c — Loriolicrinus Ja e k e l : Rasmussen, p. 881.Type species :Thiolliericrinus insuetus De Lo rio l, 1891.D e r iv a t io n o m i n i s :Loriolicrinus asper nov. sp.fig. 8 B-F ; pl. 1, fig. 4,5The name of the species comes from « asper »(rough, rugget in Latin).H o l o t y p e :CK-82-1 (fig. 8 D) ; Leningrad Mining Institute.Diagnosis :The radiais have a high free external surface. Thebasais are usually not visible but sometimes they areon the calyx surface. There are no cirrus sockets onthe centrodorsal but sometimes there are small fossaeon the radial-centrodorsal suture. The centrodorsal islow, cylindrical or conical. The stem facet is wide,elliptical, flat or concave.Four species :L. insuetus (De Loriol), L. asper nov. sp., L. laevisnov. sp., L. perforatus nov. sp.One can evidently attribute to the genus Loriolicrinusalso two following species :T y p e l o c a l it y :Karatlykh M ountain, Belbek Valley, Crimea.T y p e l e v e l :Upper Berriasian.D e s c r i p t i o n :The calyx is low, broad-conical, rounded. Thebasais are not visible on the calyx surface. The externalradial surface is very high, convex and coveredwith big irregular knobs and ridges. The radial facetsare wide. The calyx cavity is narrow and deep. Theradial and interradial furrows are well pronounced.The basais are not visible on the bottom of the calyx
— 642 —cavity. The primaxillary is high with vertical, somewhatconvex and tubercular external surface. Theheight of the centrodorsal is smaller than that of theradial ring. The external centrodorsal surface has thesame sculpture as the radiais. A slit-like depression isunder each radial, on the radial-centrodorsal suture.The centro-dorsal basis is wide and flat. In the middleof it, there is a narrow elliptical stem facet. The fulcralridge is sometimes hardly visibly serrated. Themarginal ridge, in most cases, bears big irregularteeth. The columnals are low, parallel, rarely cruciateor oblique. The external columnal surface is smoothor tubercular.Fig. 8 — Calyxes, centrodorsals and brachials of Loriolicrinus (x 3).A - holotype of L. insuetus (calyx from side, after De Loriol 1891, pi. 29, fig. 23).В - L. asper, CK-82-5 (centrodorsal from above and below).С - L. asper, CK-82-10 (primaxillary from above, side and below).D - L. asper, holotype CK-82-1 (calyx from side).E - L. asper, CK-82-3 (young calyx from side).F - L. asper, CK-82-4 (centrodorsal from below).G - L. asper, CK-82-12 (tertibrachial from above).Coupes dorsales, centrodorsales et brachiales de Loriolicrinus.A - holotype de L. insuetus (coupe dorsale vue de côté, d’après De Loriol).B - L. asper, CK-82-5 (centrodorsale vue en dessus et en dessous).С - L. asper, CK-82-10 (primaxillaire vue en dessus, de côté et en dessous).D - L. asper, holotype CK-82-1 (coupe dorsale vue de côté).E - L. asper, CK-82-3 (coupe dorsale jeune vue de côté).F - L. asper, CK-82-4 (centrodorsale vue en dessous).G - L. asper, CK-82-12 (tertibrachiale vue en dessus).
Page 1 and 2: THIOLLIERICRINID CRINOIDS FROM THE
Page 3 and 4: TABLE OF CONTENTS1 - Introduction..
Page 5 and 6: — 628 —Name of s p ecies L o ca
Page 7 and 8: 630 —
Page 9 and 10: — 632 —not only specific but al
Page 11 and 12: — 634 —Fig. 3 — Calyxes and c
Page 13 and 14: — 636 —Fig. 4A scheme of the di
Page 15 and 16: — 638 —Thiolliericrinus elongat
Page 17: — 640 —Fig. 7 — Calyxes and c
Page 21 and 22: — 644 —D e s c r i p t i o n :T
Page 23 and 24: — 646 —T y p e s p e c ie s :Ge
Page 25 and 26: — 648 —Fig. 12 — Calyxes and
Page 27 and 28: — 650 —T y p e l e v e l :Upper
Page 29 and 30: — 652 —5 — RECONSTRUCTION OF
Page 31 and 32: — 654 —SIS rllAxsurface (Loriol
Page 33 and 34: primaxillaries but are asymmetrical
Page 35 and 36: — 658 —At the same time, all th
Page 37 and 38: — 660 —AcknowledgementsThis art
Page 39 and 40: ROMAN F. (1897) - Recherches strati
Page 41 and 42: PLATE
Page 43: Geobiosn° 20, fasc. 5Pl. 1V.G. Kli

thiolliericrinid crinoids from the lower cretaceous of crimea

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