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258 results for “Frasnian”
Fig. 9 in Early-Middle Frasnian cyrtospiriferid brachiopods from the East European Platform
Fig. 9. Transverse serial sections of complete shell of Cyrtospirifer mylaensis sp. nov., from Middle Frasnian, Kraipol Formation, Middle Timan. CNIGR 10/13157. Distance in mm is measured from the posterior tip of ventral beak.
Fig. 3 in Benthic ostracods from the Early-Middle Frasnian transition in the north-western East European Platform, Russia
Fig. 3. Stratigraphical distribution of ostracods in the Izborsk Quarry, Soltsy, and Porkhov sections (partly after Ivanov et al. 2005 with additions).
Fig. 10. A in Benthic ostracods from the Early-Middle Frasnian transition in the north-western East European Platform, Russia
Fig. 10. A. Uchtovia elongata Glebovskaja and Zaspelova in Egorov, 1950. Tecnomorph carapace PIN 5128/52 in left lateral view; MDF, borehole No 5, sample i5/207; Palmatolepis punctata Zone. B. Uchtovia aff. elongata Glebovskaja and Zaspelova in Egorov, 1950. Tecnomorph carapace PIN 5128/53 in left lateral view; CDF−9/9, Semiluki Horizon, Pa. punctata Zone. C. Sulcella (Postsulcella) sp. A. Female carapace PIN 5128/54 in left lateral view; CDF−9/9, Semiluki Horizon, Pa. punctata Zone. D. Sulcella (Postsulcella) sp. B. Female carapace PIN 5128/55 in left lateral view; CDF−9/9, Semiluki Horizon, Pa. punctata Zone. E. Timanella sp. A. Tecnomorph carapace PIN 5128/56 in left lateral view; CDF, Il'men borehole, sample 68; Semiluki Horizon, Pa. punctata Zone. F. Timanella sp. B. Tecnomorph carapace PIN 5128/57 in left lateral view; MDF, Koloshka River; Svinord Beds, Pa. punctata Zone. G. Cavellina cf. chvorostanensis Polenova, 1953. Female carapace PIN 5128/58 in right lateral view; MDF, Pskov Beds, Pa. transitans Zone. H, I. Cavellina batalinae Zaspelova, 1959. Female carapaces PIN 5128/59 and PIN 5128/60 in right lateral views; MDF, Syas' River, sample S−3/1; Pskov Beds, Pa. transitans Zone. J. Acratia cf. pskovensis Egorov, 1953. Carapace PIN 5128/61 in right lateral view; MDF, Izborsk section, sample 5158/O2; Chudovo Beds, Pa. transitans Zone. K. Acratia cf. tschudovoensis Zaspelova, 1959. Carapace PIN 5128/62 in right lateral view; MDF, Izborsk section, sample 5158/O2; Chudovo Beds, Pa. transitans Zone. L. Acratia cf. longa Zaspelova in Polenova, 1955. Carapace PIN 5128/63 in right lateral view; MDF, Syas' River, sample S−3/1; Pskov Beds, Pa. transitans Zone. M. Acratia cf. schelonica Egorov, 1950. Carapace PIN 5128/64 in right latero−ventral view; CDF, Il'men borehole, sample 48; Semiluki Horizon, Pa. punctata Zone. N. Bairdia aff. symmetrica Egorov, 1953. Carapace PIN 5128/65 in right lateral view. CDF, Il'men borehole, sample 53; Semiluki Horizon, Pa. punctata Zone. O. Heladianella cf. svinordensis Glebovskaja and Zaspelova, 1959. Carapace PIN 5128/66 in right lateral view; MDF, Koloshka River; Svinord Beds, Pa. punctata Zone. Scale bars 0.1 mm.
Fig. 7. A in Benthic ostracods from the Early-Middle Frasnian transition in the north-western East European Platform, Russia
Fig. 7. A. Paraparchites calculus (Glebovskaja and Zaspelova in Zaspelova, 1959). Tecnomorph right valve PIN 5128/1; MDF, Porkhov section, sample 6/4; Porkhov Beds, Palmatolepis punctata Zone. B. Palaeocopina gen. et sp. indet. Carapace PIN 5128/2 in left lateral view; MDF, Izborsk Quarry section, sample 5/3; Dubnik Beds, Pa. transitans Zone. C. Gravia? sp. nov. aff. schallreuteri Becker, 1970. Carapace PIN 5128/3 in left lateral view; CDF−9/9; Semiluki Horizon, Pa. punctata Zone. D. Buregia sp. Carapace PIN 5128/4 in left lateral view; CDF, Il'men borehole, sample 830; Semiluki Horizon, Pa. punctata Zone. E. Buregia aff. depressa Polenova, 1953. Carapace PIN 5128/5 in left lateral view; MDF, Izborsk Quarry section, sample 5158−O2; Chudovo Beds, Pa. transitans Zone. F. Buregia sp. nov. Carapace PIN 5128/6 in left lateral view; CDF, Il'men borehole, sample 849; Semiluki Horizon, Pa. punctata Zone. G. Subtella cf. deca Zaspelova 1952. Left valve PIN 5128/7; MDF, borehole No 5, sample i5/207; Pa. punctata Zone. H. Pseudonodella cf. nodosa Zaspelova 1952. Right valve PIN 5128/8; MDF, Izborsk Quarry section, sample 5/4; Dubnik Beds, Early Frasnian. I. Nodella aff. tichonovichi Zaspelova, 1952. Male? left valve PIN 5128/9; MDF, borehole No 6, sample 6/44; Porkhov Beds, Pa. punctata Zone. J–L. Nodella aff. dobroljubovi Schishkinskaja, 1968. J. Right female valve PIN 5128/10; CDF, Il'men borehole, sample 58; Sargaevo Horizon, Pa. transitans Zone. K. Male right valve PIN 5128/11; MDF, Izborsk Quarry section, sample 5/1; Dubnik Beds, Pa. transitans Zone. L. Female left valve PIN 5128/12; MDF, Izborsk Quarry section, sample 5/1; Dubnik Beds, Pa. transitans Zone. M–O. Nodella conotuberculata Zaspelova, 1952. M. Female left valve PIN 5128/13. N. Male left valve PIN 5128/14. O. Male right valve PIN 5128/15. MDF, Porkhov section, sample 5157/2; Porkhov Beds, Pa. punctata Zone. Scale bars 0.1 mm, except B for which is 0.2 mm.
Fig. 13 in Early-Middle Frasnian cyrtospiriferid brachiopods from the East European Platform
Fig. 13. Main events in brachiopod development on the East European Platform (North−West and central regions, and Timan). Devonian sea−level curve (after Johnson et al. 1985; see Racki 1993) and curve of relative Devonian se−level changes in Moscow Syneclise after Alekseev et al. (1996). Global events and mass extinction after Sandberg et al. (2002).
Fig. 2 in Benthic ostracods from the Early-Middle Frasnian transition in the north-western East European Platform, Russia
Fig. 2. Stratigraphical distribution of ostracods in the Syas' River section (after Zhuravlev et al. 2005 with additions). Abbreviation: M., Mesotaxis.
Fig. 6 in Early-Middle Frasnian cyrtospiriferid brachiopods from the East European Platform
Fig. 6. Transverse serial sections of complete shell of Cyrtospirifer schelonicus (Nalivkin, 1941), Middle Frasnian, Svinord Beds, Main Devonian Field. CNIGR 6/13157. Distance in mm is measured from the posterior tip of ventral beak.
Fig. 5 in Benthic ostracods from the Early-Middle Frasnian transition in the north-western East European Platform, Russia
Fig. 5. Dominant genera in ostracod associations in the Early–Middle Frasnian transition interval in the north−western East European Platform.
Fig. 9. A in Benthic ostracods from the Early-Middle Frasnian transition in the north-western East European Platform, Russia
Fig. 9. A. Eukloedenella sp. Tecnomorph carapace PIN 5128/37 in left lateral view; MDF, Syas' River, sample S−3/8; Snetnaya Gora Beds, Palmatolepis transitans? Zone. B. Milanovskya cf. ventricristata Zaspelova, 1959. Tecnomorph carapace PIN 5128/38 in left lateral view; MDF, Syas' River, sample S−3/8; Snetnaya Gora Beds, Pa. transitans? Zone. C. Milanovskya bicornis Glebovskaja and Zaspelova in Egorov, 1950. Tecnomorph carapace PIN 5128/39 in left lateral view; CDF, sample CDF−9/9; Semiluki Horizon, Pa. punctata Zone. D. Indivisia semilukiana Egorov, 1954. Heteromorph carapace PIN 5128/40 in right lateral view; MDF, Koloshka River; Svinord Beds, Pa. punctata Zone. E, F. Knoxina cf. alexandrovae (Egorov, 1950). E. Tecnomorph left valve PIN 5128/41; MDF, borehole No 6, sample i6/44; Pa. punctata Zone. F. Tecnomorph right valve PIN 5128/42; MDF, Koloshka River; Svinord Beds, Pa. punctata Zone. G. Knoxina aff. costata (Zaspelova, 1959). Tecnomorph carapace PIN 5128/43 in left lateral view; MDF, borehole No 5, sample i5/201; Porkhov Beds, Pa. punctata Zone. H. Mennerites svinordensis Egorov, 1950. Tecnomorph left valve PIN 5128/44; MDF, Koloshka River, Svinord Beds, Pa. punctata Zone. I. Mennerites aff. svinordensis Egorov, 1950. Tecnomorph carapace PIN 5128/45 in left lateral view; MDF, Porkhov section, sample 98−6/2; Porkhov Beds, Pa. punctata Zone. J. Knoxiella? dubia Polenova, 1953. Tecnomorph right valve PIN 5128/46; CDF−9/9; Semiluki Horizon, Pa. punctata Zone. H
Fig. 14. A in Conodont ecology in the Early-Middle Frasnian transition on the South Polish carbonate shelf
Fig. 14. A synthesis of main conodont events against other biotic and tectonic events, carbon isotopic curve and sea−level changes. Note a response of relative conodonts size to variation in δ13C curve. The essential biofacies turnovers, a sequence of conodont crisis and recovery episodes correlate positively with sea−level and productivity fluctuation.
Fig. 15 in Conodont ecology in the Early-Middle Frasnian transition on the South Polish carbonate shelf
Fig. 15. Comparison of conodont successions and events in South Poland, Timan, and Ardennes against alternative conodont zonation across the Early–Middle Frasnian transition.
Fig. 13 in Conodont ecology in the Early-Middle Frasnian transition on the South Polish carbonate shelf
Fig. 13. Diversity development for selected conodont species groups around Early–Middle Frasnian transitional interval. The abundance relationship between reef−related, opportunistic and eurytopic conodont taxa is plotted against δ13C curve (after Pisarzowska et al. 2006).
Fig. 12 in Conodont ecology in the Early-Middle Frasnian transition on the South Polish carbonate shelf
Fig. 12. Generalised biofacies correlation of sections studied against diagrammatic cross−section of the South Polish carbonate shelf to show location of Holy Cross Mountains and Cracow regions (partly after Szulczewski 1971: fig. 11C), as well their geotectonic setting (CFTZ, Caledonian Marginal Fault−and−Thrust Zone; Dadlez et al. 1994).
Fig. 10 in Conodont ecology in the Early-Middle Frasnian transition on the South Polish carbonate shelf
Fig. 10. Conodont biofacies distribution, dominating species and abundance trends against the carbonate carbon isotopic curve for Kostomłoty−Mogiłki. Biofacies: A, ancyrodellid; P, polygnathid; I, icriodontid; M, mesotaxid; Pa, palmatolepid; mix, mixed; *, biofacies determined from low frequency samples (less than 20 Pa elements); A., Ancyrodella; Me., Mesotaxis.
Fig. 9 in Conodont ecology in the Early-Middle Frasnian transition on the South Polish carbonate shelf
Fig. 9. Conodont biofacies distribution, dominating species and abundance trends against the carbonate carbon isotopic curve for Śluchowice. Biofacies and other abbreviations: A, ancyrodellid; P, polygnathid; I, icriodontid; M, mesotaxid; mix, mixed; *, biofacies determined from low frequency samples (less than 20 Pa elements); A., Ancyrodella; Me., Mesotaxis; Wtrz., Wietrznia; Śl., Śluchowice.
Fig. 6 in Conodont ecology in the Early-Middle Frasnian transition on the South Polish carbonate shelf
Fig. 6. Conodont biofacies distribution, dominating species, abundance trends and autochtony index for Wietrznia Id−E. Biofacies abbreviations: A, ancyrodellid; P, polygnathid; I, icriodontid; M, mesotaxid; mix, mixed; *, biofacies determined from low frequency samples (less than 20 Pa elements).
Fig. 3 in Conodont ecology in the Early-Middle Frasnian transition on the South Polish carbonate shelf
Fig. 3. Location sketch of Wietrznia quarry (sub)sections (Id, IdE, and IdW) at Kielce (see Figs. 2, 5–7; partly after Narkiewicz 1991). Lithologic sets (A–D) after Szulczewski (1971) and Racki and Bultynck (1993).
Fig. 5 in Molluscs from the Early Frasnian Goniatite Level at Kostomłoty in the Holy Cross Mountains, Poland
Fig. 5. Gastropods from the Early Frasnian Goniatite Level (uppermost Szydłówek Beds) at Kostomłoty, Holy Cross Mountains, Poland. A–C. Lahnospira taeniata (Sandberger, 1842). A. GIUS 4−2282 Kos−12 in apertural view. B, C. GIUS 4−2276 Kos−6 (B) and GIUS 4−2277 Kos−7 (C) in lateral views. D. Subulitidae indet., GIUS 4−2289 Kos−19, in apertural (D1) and lateral (D2) views, with protoconch visible. E, K. Naticopsis aff. N. kayseri Holzapfel, 1895. E. GIUS 4−1164 Kos−2 in pertural (E1), lateral (E2), and apical (E3) views and cycloneritid−type protoconch (E4). K. GIUS 4−2288 Kos−18 in apertural (K1) and lateral (K2) views. F–J. Palaeozygopleura (Bohemozyga) pyritica sp. nov. H. GIUS 4−2284 Kos−14 in apertural (H1) and lateral (H2) views of holotype. F, G, I. GIUS 4−2287 Kos−17 (F). GIUS 4−2285 Kos−15/1 (G), and GIUS 4−2286 Kos−16 (I), lateral views with opisthoclinal ornamentation visible. J. GIUS 4−2285 Kos−15/1, apertural view of shell fragment.
Fig. 5 in Crinoid and ostracod succession within the Early-Middle Frasnian interval in the Wietrznia quarry, Holy Cross Mountains, Poland
Fig. 5. Stratigraphic distribution of the Lower–Middle Frasnian crinoid species in the Wietrznia Ie section, Holy Cross Mountains. Lithology, stratigraphy and stable carbon isotope geochemistry modified from Pisarzowska et al. (2006). Abbreviation: SML, Śluchowice Marly Level.
Fig. 1. A in Molluscs from the Early Frasnian Goniatite Level at Kostomłoty in the Holy Cross Mountains, Poland
Fig. 1. A. Location of Holy Cross Mountains against the palaeogeographic framework of the Devonian in Poland (modified after Racki 1993: fig. 1). B. Givetian–Frasnian palaeogeography of the Holy Cross Mountains (based on Racki 1993: fig. 2), with location of the Kostomłoty and Ściegnia sites.
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