Belzungia terquemi Morellet, 1908, 1917

Radoičić, Rajka & Özgen-Erdem, Nazire, 2014, A New Dasycladalean Algae From The Lower Eocene Of The Seyitgazi Region, Central Turkey: Belzungia Barattoloi Sp. Nov., Acta Palaeontologica Romaniae 10 (1 - 2), pp. 1-2 : 10-14

Belzungia terquemi Morellet, 1908

Fig. 7 a-d

Some B. terquemi sections from Kışlatepe section are larger than other specimens of recently presented association from this area: d - 0.350 mm, D max. 0.90 mm. Dimensional values on anarchic whorl’s structure provided in the transverse section on Fig. 7c with 9 partly and /or poorly preserved ASB, are: D - 0.86 mm, d - 0.36 mm, encrusted part of primary branches reach 0.073 mm length, branches of secondary order varies from 0.56 to 0.108 mm, tertiaries from 0.046 to 0.080 mm, fourth order from 0.032 to 0.046 mm, and the branches of fifth order are about 0.02 mm.

Belzungia sp. 3

Fig. 7 e-g

The group of three specimens in transverse and transverse slightly-oblique sections, leave impression of a low grade of anarchic structure. Some smaller difference between them and in the assemblages, are present such as in other species. Their relation to B. terquemi is not excluded.

Belzungia sp. 4 (sp. nov.?)

Fig. 8a, b , (c?)

Belzungia of fairly regular structure with especially thicker proximal part of assemblage of branches (primaries and secondaries). Certain difference in relation to presented Belzungia is noticeable; it could be new Belzungia taxon.

Some of the undetermined species are also illustrated in Fig. 8 d-h. Although Kışlatepe limestone contains rich Belzungia association, the structural feature of numerous specimens has been more or less overlapped by recrystallization and/or deformation. Many of such specimens were unserviceable to study.

Lower Eocene Dasycladales of Seyitgazi Region

The list of presented species includes:

Tribus Thyrsoporelleae ( Pia 1927) Elliott 1997

Genus Belzungia Morellet 1908

Belzungia terquemi Morellet & Morellet,1917

Belzungia silvestrii (Pfender in Pfender & Massieux, 1966) Radoičić & Özgen- Erdem, 2010

Belzungia pfenderae Radoičić & Özgen- Erdem, 2010 Belzungia barattoloi sp.nov.

Belzungia sp. 1

Belzungia sp. 2

Belzungia sp. 3

Belzungia sp. 4 (sp. nov.?)

Genus Anatolia Radoičić & Özgen- Erdem, 2010

Anatolia kislae Radoičić & Özgen- Erdem, 2010

Anatolia kozyakae Radoičić & Özgen- Erdem, 2010 Anatolia ? sp.

Thyrsoporella sp.1

Other Dasycladales :

Furcoporella diplopora Pia (in Trauth), 1918 Furcoporella ? sp.

Dissocladella aff. gracilis Radoičić, 1991

Uteria aff. merienda ( Elliott 1955)

Uteria sp.

Acicularia aff. tavnae Radoičić, 1991

Clypeina ? tekini Özgen-Erdem & Radoičić (in press) Cymopolia sp.1

Cymopolia sp.2

Neomeris sp.

Salpingoporella ? sp.

and some not presented undetermined / unknown species.

Figures

Fig. 7 a to d Belzungia terquemi (Michelin, 1846). a, b Oblique partly tangential and tangential sections, thin sections NEK.14g. c Slightly oblique section, thin section NEK.14g. d Subaxial section, thin section NEK.14h. e to g. Belzungia sp.3, slightly oblique and transverse sections, thin sections NEK.14f, NEK.14b and NEK.15b. Scale bars: 0.200 mm.

Fig. 8 a, b, (c?). Belzungia sp.4 (sp. nov.?), oblique - longitudinal and slightly oblique transverse sections, thin sections; NES.5a, NEK.14b and NEK.14i). d to h. Belzungia undetermined species, thin sections; NEK.14n, NEK.14g, NEK.14g, NEK.14f, NEK.5g. Scale bars: 0.200 mm.