Caudicriodus? steinachensis ( Al−Rawi, 1977 )

Drygant, Daniel & Szaniawski, Hubert, 2012, Lochkovian conodonts from Podolia, Ukraine, and their stratigraphic significance, Acta Palaeontologica Polonica 57 (4), pp. 833-861 : 850-852

Caudicriodus? steinachensis ( Al−Rawi, 1977) ,

eta morphotype of Klapper and Johnson, 1980

Fig. 11M.

DRYGANT AND SZANIAWSKI—EARLY DEVONIAN CONODONTS FROM PODOLIA 851

200 μm C A B G F K1 K2 L1 O P R S D E1 E2 H I J N1 L 2 M N2 Q T U

http://dx.doi.org/10.4202/app.2011.0124

1965 Icriodus bilatericrescens Ziegler ; Philip 1965: 103, pl. 9: 30–32.

1969 Icriodus latericrescens n. ssp. B; Klapper 1969: 8, pl. 2: 6–9.

1977 Icriodus steinachensis n. sp.; Al−Rawi 1977: 55, pl. 5: 42–43.

1979 Icriodus steinachensis Al−Rawi, 1979 ; Lane and Ormiston 1979: pl. 4: 28, 29.

1980 Icriodus steinachensis Al−Rawi, 1980 a; Schönlaub: pl. 6: 14–17; pl. 7: 20, 21.

1980 Icriodus steinachensis Al−Rawi eta morphotype; Klapper and Johnson 1980: pl. 2: 25–27.

1981 Icriodus steinachensis Al−Raw eta morphotype; Johnson and Klapper 1981: pl. 1: 13–16, 18, 19.

1982 Icriodus steinachensis Al−Rawi eta morph; Murphy and Matti 1982: 58, pl. 5: 31, 36.

1984 Icriodus steinachensis Al−Rawi ; Murphy and Cebecioglu 1984: fig. 2A–R, Z–HH, 5G–Q.

1985 Icriodus steinachensis Al−Rawi eta morphotype; Schönlaub 1985: pl. 2: 13–16.

1994 Icriodus steinachensis Al−Rawi ; Valenzuela−Ríos 1994: 89, pl. 8: 1–3, 5–8, 11.

1994 Icriodus steinachensis (Al−Rawi) eta morph Klapper and Johnson; Mawson and Talent 1994: 47, fig. 9K–N.

non 2004 Latericriodus steinachensis (Al−Rawi) eta morph Klapper and Johnson; Slavík 2004: pl. 1: 5 [= Caudicriodus . postwoschmidti (Mashkova, 1968) ].

2004 Latericriodus steinachensis (Al−Raw) eta morph Klapper and Johnson; Slavík and Hladil 2004: 144, pl. 1: 3 [non pl. 1: 2 =? Caudicriodus serus ( Drygant, 1984) and pl. 1: 4 = C. postwoschmidti (Mashkova, 1968) ].

2007 Latericriodus steinachensis (Al−Rawi) eta morph Klapper and Johnson; Suttner 2007: 24, pls. 8: 2, 8–10, 9: 1, 5, 6, 8.

2007 Icriodus steinachensis (Al−Rawi) eta morph Klapper and Johnson; Slavík et al. 2007: fig. 3: 2, 3 [?non fig. 2: 4 = Caudicriodus schoenlaubi sp. nov.].

2010 Caudicriodus sp. [? C. serus ( Drygant, 1984) ]; Drygant 2010: pl. 4: 13.

Material.—One Pa element from the upper part of Ivanye Formation. Section and sample 2A/10.

Remarks.—Our specimen possesses three transverse ridges and represents an intermediate ontogenetic stage. The platform is slightly curved, narrow in anterior part and expanded behind the second transverse ridge. Spindle a little curved, transverse ridges flattened, spur short but well−developed. Postero−lateral process short, undenticulated. The angle between that and spindle about 90 °. Outer lobe well−developed. Primary cusp higher than the secondary. Podolian specimen differs from the typical mature “ Icriodus steinachensis eta morphotype” by narrower platform, undenticulated postero−lateral process and bigger space between the transverse ridges.

The taxon “ I. steinachensis eta morphotype” is reffered to Caudicriodus questionably because its Pa element ( Murphy and Cebecioglu 1984: fig. 4G– R) differ from typical representatives of the genera Icriodus Branson and Mehl, 1938 and Latericriodus Müller, 1962 (e.g., type species Icriodus latericrescens Branson and Mehl, 1938 ) but is close to Caudicriodus Bultynck, 1976 .

Stratigraphic and geographic range.—Uppermost Lochkovian to lower Pragian ( Caudicriodus? steinachensis Zone ) in Frankenwald ( Germany), Barrandian ( Czech Republic),

Carnic Alps ( Austria), central Pirenees, Victoria ( Australia), central Nevada.