Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 26. 2008. (Budapest, 2008)
at midwhorl. Remnants indicate presence of rather widely enlarged peristome. Lowermost one (in place of siphonal canal) not preserved at all, but remnant of third one found as prolongation of midwhorl angulation between earliers (= specific character of Trietteia). Uppermost spine of former peristome present at beginning of penultimate whorl. Sculpture — On preserved shelly whorls, sparsely nodosed cord running on midwhorl angulation; nodes belong to "parabolic" type, being traces of former, temporary peristomes. Ribs connected to each node but not reaching sutures. Upwards running ribs seem weaker. All whorls covered by spiral threads; because of subregularly repeating marked growth-lines (growth-riblets), shell covered bv irregular network of spiral and collabral lines. Remarks — The whorls show characters of a Pietteia, but without better preserved peristome, more precise identification is not possible. The morphology of the shells resembles Pietteia trispinigera SZABÓ, 1983, on which subgenus Prietteia CONTI & SZABÓ, 1987 has been established. Prietteia has three peristomal digitation instead of two of subgenus P. (Pietteia). The number of nodes on the midwhorl cord seems to be rather variable: 10—12 on the penultimate whorl of a specimen and 18—20 on another shell. The nodes are lacking from the last whorl. Distribution — Hallstatt, Hierlatz Alpe, Upper Sinemurian (Oxynotum Zone); Schafberg over St. Wolfgang, (Austria), ? Upper Phensbachian. Figure 92 — Pietteia (Trietteia?) fischeri (STOLICZKA, 1861), lectotype and a paralectotype. — 4: copy of the original figures from STOLICZKA (1861) Tafel V; A-C: lectotype in apertural (A) and dorsal (B, C) views A-B = Xl, C = x2.2 magnificaüon; D: a paralectotype with much denser nodes than lectotype, xl.5. Superfamily PTurritelloidea CLARCK, 1851 Family PTurritellidae CLARCK, 1851 Gen. Turritellidae? striata (HÖRNES, 1853) (Figure 93) 1853: Chemnitsria striata HORN. — p. 757. 1861: Chemnittna striata HÖRN. — STOLICZKA, p. 165, pl. 1, fig. 7. Lectotype — GBa 2008/69/7/1 (selected here). Material — Six fragmentary specimens of different growth stages in the "originals collection" and 15—20 fragments in the "background" material, however earliest (protoconch and juvenile) shell parts and entire peristome not found. Measurements H 1 IL HP D W AA AL lectotype *4.5 4.5° Figure 93 — Gen. Turritellidae? striata (HÖRNES, 1853), lectotype and a paralectotype. — 7 a—b: copy of the original figures from STOLICZKA (1861) Tafel I; A-B: the lectotype, A = xl, B = x3; C—D: a more markedly ornamented paralectotype, C = xl, D = X3 (D). Shape — Extremely high, needle-like, turriculate shell, composed of numerous slighdy convex whorls, having almost double height than diameter; suture moderately impressed. Top of convexity, corresponding also periphery, situated at midwhorl. Lower rim of whorls angulate and, on most specimens, also carinate. Suture follows angulation, carina may be either exposed or overlapped by the