Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 19. 2001. (Budapest, 2001)

? Superfamily Eucycloidea KOKEN, 1896 Family Eucyclidae KOKEN, 1896 Genus Eucyclus}. A. EUDES-DESLONGCHAMPS, 1860 Subgenus Eucyclus]. A. EUDES-DESLONGCHAMPS, 1860 Eucyclus (Eucyclus) aff. capitaneus (MÜNSTER, 1844) (Plate I: 10-11) aff. 1844 Turbo capitaneus MÜNSTER — in GOLDFUSS, p. 91, pl. 194, fig. 1. aff. 18S2:Turbo capitaneus MONSTER — D'ORBIGNY, p. 341, pi. 329, figs. 7-8. aff. 1892 Amberleya capitanea MÜNSTER — HUDLESTON, p. 277, pi. 21, fig. 12. aff. 1909 Eucyclus capitaneus MÜNSTER — BRÖSAMLEN, p. 257, pl. 20, figs. 8-9. aff. 1937 Amberleya capitanea MÜNSTER — PCHELINCEV, p. 30, pi. 2, fig. 20. 1982 Amberleya (Eucyclus) capitanea (MÜNSTER) — SZABÓ, p. 24, pl. 3, figs. 1-2. aff. 1997 Amberleya (Eucyclus) capitanea (MÜNSTER) — FISCHER & WEBER, p. 135, pi. 21, figs. 12 a-b Material — Four fragmentary inner casts. Measurements. H HL HP D WP AA AL 24 16.5 25 15 41° Description — High turbiniform shell with convex whorls, bearing two strong carinae reflected on inner cast and resulting spiral angulations. Lower carina giving periphery; third carina visible on base near peripheral one (just overlapped by suture on earlier whorls). Strong nodosity of keels also reflected on youngest whorl of figured specimen (Plate 1: 11). Steep, slighdy concave and rather wide ramp between upper suture and nearest carina. Other belts between pairs of carinae also slightly concave. Base convex, substitution of strong columella observable. Columellar lip straight but well deviates from coiling axis at parietal region towards suture; consequendy: parietal lip short. Remarks — Shape, measurements and the traces of the ornament are well identifiable with those of shelly specimens published from the Bakony Mountains (SZABÓ, 1982) as Amberleya (Eucyclus) capitaneus (MÜNSTER, 1844). According to FISCHER & WEBER (1997), the spiral angle (43°) of these specimens is too low compared to other published specimens in which this value is between 50°—60°. Though in the Gerecse material, there are also specimens having wider (46°, 50°) spiral angle, further studies are necessary on better preserved material to clear up the taxonomical meaning of this and the related differences (more slender shell, somewhat higher whorls, etc). Distribution — Vöröshíd quarry (Kis-Teke-hegy slope); Lower to Middle Toarcian. Eucyclus (Eucyclus) aff. tataensis SZABÓ, 1995 (Plate I: 8-9) aff. 1995 Eucyclus (Eucyclus) tataensis sp. n. — SZABÓ, p. 68, pi. 7, figs. 5-6. Material — Ten specimens, most of them only whorl fragments. Measurements. H HL HP D WP AA AL *54 33 21 29 48° 48° Description — High turbiniform - turriculate moulds with rounded convex whorls, separated by deeply canaliculate suture. Traces of three strong carinae preserved from penultimate whorl as rounded spiral elevations, lowermost one just covered by suture on spire whorls. Periphery rounded (coinciding with middle carina), base convex and anomphalous. Strong columella reflected in casts. Columellar lip straight and parallel to coiling axis; rounded angulations at meetings with parietal and basal lip. Remarks — The holotype of Eucyclus (Eucyclus) tataensis SZABÓ, 1995 has significandy more slender spire therefore the use of open nomeclature is necessary. The apical angle of the (shelly) holotype is 38°, while 48° is measured on the most complete specimen of the available steinkerns (Plate 1: 8-9). Though the whole shape suggests identity with E. (E.) tataensis, in the given state of preservation other possibilities cannot be completely excluded. Distribution — Vöröshíd quarry (Kis-Teke-hegy slope); Lower to Middle Toarcian.