Zieglerodina prosoplatys ( Mawson, Talent, Molloy, and Simpson, 2003 )

Drygant, Daniel & Szaniawski, Hubert, 2012, Lochkovian conodonts from Podolia, Ukraine, and their stratigraphic significance, Acta Palaeontologica Polonica 57 (4), pp. 833-861 : 854

Zieglerodina prosoplatys ( Mawson, Talent, Molloy, and Simpson, 2003)

Fig. 13E, F, J.

1977 Ozarkodina remscheidensis remscheidensis n. form beta; Chatterton and Perry 1977: pl. 4: 26 [only].

1982 Ozarkodina remscheidensis (Ziegler) ; Savage 1982: 986, pl. 2: 21–23 (only).

1992 Ozarkodina remscheidensis remscheidensis (Ziegler) ; Barrick and Klapper 1992: pls. 4: 8, 9, 6: 8, 9 [only].

2003 Ozarkodina remscheidensis prosoplatys n. subsp.; Mawsonet al. 2003: 92, pl. 1: 4–23.

2005 Ozarkodina sp. 1 ; Barrick et al. 2005: pl. 2: 7 [only].

Material.—Three Pa elements from the lower part of

Khudykivtsi Formation and Ivanye Formation. Sections and samples: 14/0,6 and 2.5 m, 52/ 500 m.

Remarks.—Blade elongated (0.8–1.0 mm), comparatively high (about 0.22 mm), with the anterior end downcurved, forming a beard−like process. The upper edge nearly straight. Denticles sharp, comparatively low, uneven in height. Denticle above the basal cavity (cusp) little enlarged. Basal cavity located at the posterior half of the blade and has comparatively wide lips. Podolian specimens differ from the typical material by more elongated and beard−like anterior end of the blade.

Stratigraphic and geographic range.—Lower part of Caudicriodus hesperius Zone in Podolia, Nowshera Limestone in Pakistan, Road River Formation in Northwestern Canada, Frame Formation in Texas, Lochkovian in Alaska.