Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 26. 2008. (Budapest, 2008)
Measurements H GBa 2008/69/10/1/1 Shape — High cyrtoconical shell of numerous feebly convex, low whorls. Suture shallow incision; sharp angulation of last whorl corresponding to periphery. Base feebly concave, anomphalous. Poorly preserved peristome seems feebly reflected along short columellar lip; columella thick; no trace of callosity observed. Sculpture — Shell smooth with delicate growthlines. Their orientation moderately prosocline on whorls strongly opisthocyrt on base. Remarks — By STOLICZKA's (1861) interpretation, Trochus acteon D'ORBIGNY is icluded into Trochus epulus D'ORBIGNY. Epulotrochus acteon has been found amongst AA AL 48° 28° the figures (Tafel I: 11c) and in the "originals collection", however, the simple conical shell in Tafel I: lib is not a representative of "epulus'' but belongs to a new species (see Epulotrochus tuherculatus n. sp. below), nothing matches to Tafel I: 11a figure. However, further two specimens of slender, sharply acute shell of probably juvenile stage are found, which are representatives of another species. Their correct species attribution needs further studies. Distribution — Fontaine-Etoupefour (Calvados, France) Upper Pliensbachian; Hallstatt, Hierlatz Alpe, Upper Sinemurian (Oxynotum Zone); Sümeg (Bakony Mts), Upper (?) Sinemurian. HL HP D W *6 *3.8 *11.5 *6.7 Epulotrochus tuherculatus n. sp. (Figure 60: G-L, M-P) pars 1861 : Trochus epulus D'ORBIGNY — STOLICZKA, p. 167, pl. 1, fig 11 b. Holotype —GBa 2008/69/10/2/1. Type locality — Hierlatz Alpe, Hallstatt, Austria. Type strata — Upper Sinemurian (Oxynotum Zone) Hierlatz Limestone. Name — Referring the ornament. Diagnosis — Rather high conical shell with acute ju\ r enile part, base feebly convex, peristome has short, simple columellar lip; juvenile whorls ornamented with single subsutural row of tubercles, becoming collabrallv elongate ridges during growth; ridges gradually weaken then wanish before adult stage. Material — The holotype is selected from the "background" material; the paratype is from STOLICZKA (1861) "originals collection" (Epulotrochus epulusbox). Measurements H holotype HL *4 HP *2.5 D \Y 14 AA 37° AL 37° Shape — Rather high conical shell with acute juvenile part, but without completely developed "trochiform" last growth phase. Whorls flat, but have narrow, swollen (tubercled) subsutural belt on juvenile, and weakly carinate peripher}' on post-juvenile whorls. Base feebly convex, and having shallow median depression. Peristome has short, simple columellar lip, oblique to axis; no modification visible (damaged on all specimens), except weak reflecting. Sculpture — Subsutural spiral swelling of juvenile whorls ornamented with single row of tubercles, becoming collabrally elongate ridges during growth; initially length of ridges gradually increase but they never reach lower suture. On post-juvenile whorls strength of ridges (and tubercles) gradually decrease then wanish before adult stage; last whorl ornamented only by growth-lines. Remarks — The narrower cone shape with acute apex, and the ornament distingush this species from Epulotrochus epulus (D'ORBIGNY, 1853), just like from E. acteon (D'ORBIGNY, 1853) that has at the same time well developed trochiform shape with feebly convex whorls. The subsutural nodosity is similar to that of Epulotrochus? morpheus (STOLICZKA, 1861) but it has a smaller, true trochiform adult shell of full development and the whorls are provided with a subsutural and a suprasutural carina along full length of the shell (however, a close phylogenetic relation between the two species is feasible). Distribution — Hallstatt, Hierlatz Alpe, Upper Sinemurian (Oxynotum Zone). Epulotrochus carinifer (HÖRNES, 1853) (Figure 61) 1853: Trochus carinifer — HÖRNES, p. 759. 1861: Trochus carinifer HÖRN. — STOLICZKA, p. 169, pl. 1, fig. 15. Lectotype — GBa 2008/69/12/1 (selected here). Material — Shelly specimens (without juvenile part and peristome). Measurements II HL HP D W AA AL lectotype - *3.6 *1.9 *8.5 *4.5 *27° 33°
