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258 results for “Frasnian”
Fig. 56 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 56. Suture and growth lines and septal geometry of Frasnian goniatites from the Holy Cross Mountains. A, B. Acanthoclymenia genundewa (Clarke, 1898), suture lines of specimens ZPAL AmVII/1686 from Ściegnia and ZPAL AmVII/969 from Laskowa Góra (Kostomłoty).C–H. Koenenites lamellosus (Sandberger and Sandberger, 1856), suture lines and septum in lateral view of specimens ZPAL AmVII/1685 (also septal geometry, H) and 1687 from Ściegnia, ZPAL AmVII/970 from Laskowa, 1683 from Ściegnia, and ZPAL AmVII/1947 from Zamkowa Góra at Chęciny. I. Manticoceras lamed (Sandberger and Sandberger, 1850), specimen ZPAL AmVII/1558 from the lower cephalopod horizon at Płucki.J, K. Manticoceras adorfense (Wedekind, 1913) from the Upper Kellwasserkalk at Płucki, suture line and septal geometry of specimen ZPAL AmVII/1561 and growth line of ZPAL AmVII/1530.L, M. Archoceras varicosum (Drevermann, 1901) from the Upper Kellwasserkalk at Płucki, suture, growth line, and septal geometry of specimen ZPAL AmVII/1484. N–P. Aulatornoceras belgicum (Matern, 1931) from the Upper Kellwasserkalk at Płucki, suture, growth line, and septal geometry of specimens ZPAL AmVII/1504, 1512, and 1505.Q, R. Linguatornoceras sp. from the lower cephalopod horizon at Płucki, suture, growth line, and septal geometry of specimens ZPAL AmVII/1504, 1512, and 1505.S–U. Linguatornoceras sp. from the Upper Kellwasserkalk at Płucki, suture, growth lines and septal geometry of specimens ZPAL AmVII/1377, 1382, 1383, and 1523. V, X. Manticoceras drevermanni (Wedekind, 1913) from the Upper Kellwasserkalk at Płucki, suture, growth line, and septal geometry of specimens ZPALAmVII/1429, 610, and 1520. Y–AC. Crickites holzapfeli Wedekind, 1913 from the Upper Kellwasserkalk at Płucki, suture and growth lines of specimens ZPAL AmVII/1520, 1527, 606, and 1531 (also septal geometry). Scale given when suture was traced from single more or less complete septum, composite drawings out of scale.
Fig. 29 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 29. Klapperina from the early Frasnian of the Holy Cross Mountains. A–E. Klapperina sp. from Wietrznia, sample Wtr−9, P1 (sp) elements ZPAL CXVI/1083, 1082, and 1081 (A–C), P2 (oz) element ZPAL CXVI/ 1093 (D), and S2 (pl) element ZPAL CXVI/ 1084 (E). F. Klapperina sp. indet. from Włochy, sample Wł−R/A1, P1 (sp) element ZPAL CXVI/916.
Fig. 10 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 10. The Frasnian prioniodinid Pluckidina kielcensis sp. nov. from the early Frasnian of Wietrznia (sample Wtr−9), Holy Cross Mountains, P1 (sp) element ZPAL CXVI/1063 (A, holotype), P2 (oz) element ZPAL CXVI/1064 (B), S2 (pl) element ZPAL CXVI/1066 (C), S0 (tr) element ZPAL CXVI/1065 (D), S1 (lo) element ZPAL CXVI/1067 (E), S3 (ke) element ZPAL CXVI/1068 (F), S4 (hi) element ZPAL CXVI/1069 (G), and M (ne) element ZPAL CXVI/1070 (H).
Fig. 9 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 9. The prioniodinid Dyminodina gen. nov. from the Frasnian of the Holy Cross Mountains. A–I, O–Q. Dyminodina planidentata sp. nov. A–I. Lower cephalopod limestone at Płucki population (sample Pł−22), P1 (sp) element ZPAL CXVI/598 (A), P2 (oz) element ZPAL CXVI/599 (B), S0 (tr) element ZPAL CXVI/601 (C), S2 (pl) element ZPAL CXVI/604 (D), S1 (lo) element ZPAL CXVI/602 (E), S4 (hi) element ZPAL CXVI/603 (F), and M (ne) element ZPAL CXVI/606 (G; holotype). O–Q. Early Frasnian population from Wietrznia (sample Wtr−5), S4 element ZPAL CXVI/712 (P), and M (ne) element ZPAL CXVI/713 (Q). H–J. Dyminodina anterodenticulata sp. nov. from the Upper Kellwasserkalk at Płucki (sample Pł−391), P1 element ZPAL CXVI/391 (H), M (ne) elements ZPAL CXVI/390 (I; holotype), and P2 element ZPAL CXVI/402 (J). K–Q. Dyminodina kovalensis sp. nov. from the topmost Frasnian at the Kowala Quarry, sample Ko−151, P1 element ZPAL CXVI/1191 (K), P2 element ZPAL CXVI/1192 (L), S4 (hi) element ZPAL CXVI/1196 (M), S2 element ZPAL CXVI/1194 (N), S0 (tr) element ZPAL CXVI/1193 (O), S2 (pl) element ZPAL CXVI/1195 (P), M element ZPAL CXVI/ 1197 (Q; holotype).
Fig. 54 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 54. Non−gephuroceratid goniatites from the Upper Kellwasserkalk at Płucki. A–H. Archoceras varicosum (Drevermann, 1901), specimens ZPAL AmVII/1471, 626, 1478, 1477, 1479, 1473, 617, and unnumbered SEM picture. I–M. Aulatornoceras belgicum (Matern, 1931), specimens ZPALAmVII/616, 1510, 1505, 1506, and 628; note variation in conch proportions and ontogenetic changes in conch evoluteness. N–S. Linguatornoceras sp., specimens ZPAL AmVII/1380, 1727, 1725, 1374, 1376, and 1403; note variation in relative conch width. All × 2, except for H which is × 20 and P which is × 1.5.
Fig. 7. The prioniodinid Ligonodina pectinata Bassler, 1925 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 7. The prioniodinid Ligonodina pectinata Bassler, 1925 from the Frasnian of the Holy Cross Mountains. A, C, H, I. Late Frasnian population from the lower cephalopod limestone at Płucki (sample Pł−22); P1 (sp) element ZPAL CXVI/ 621 (A), S0 (tr) elements ZPAL CXVI/618 and 617 (C, I), and S4 (hi) element ZPAL CXVI/622 (H). B, E, F, I, J. Population from the mid−Frasnian of Wietrznia (sample Wtr−5), S1 (lo) element ZPAL CXVI/698 (B, I), P2 (oz) element ZPAL CXVI/695 (E), S2 (pl) element ZPAL CXVI/704 (F), and S4 element ZPAL CXVI/699 (J). D, L. Population from the mid−Frasnian of Wietrznia (sample Wtr−13), S2 element ZPAL CXVI/830 (D) and M (ne) element ZPAL CXVI/832 (L). G, K. Population from the early Frasnian of Włochy (sample Wł R/A1), S0 element ZPAL CXVI/866 (G) and M (ne) element ZPAL CXVI/870 (K).
Fig. 3 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 3. Ammonoids from the Skały Formation cropping out in an abandoned quarry near old water mill at Śniadka (exposure 6a of Sobolew 1909), 1 m below sample Sn−1. A–J. Holzapfeloceras sp. aff. H. croyi House, 1978; restored conch proportions (A), sutures (B, C; based on specimens ZPAL AmVII/97 and 487, respectively), growth lines (D; based on ZPAL AmVII/490), shell preserved three−dimensionally in concretion (E; ZPAL AmVII/485), crushed specimens showing partially preserved suture (F; ZPAL AmVII/484) and growth lines (G, H; ZPAL AmVII/490 and 488), and phragmocone fragments with preserved septa (I, J; ZPAL AmVII/487 and 79); all × 2 except for J which is × 3. K–M. Agoniatites sp., possibly A. vanuxemi (Hall, 1879); specimen ZPAL AmVII/483; restored cross section (K), suture (L), and actual specimen (M), × 2.
Fig. 4 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 4. Correlation of studied sections of the Frasnian in the Holy Cross Mountains, Poland and position of conodont samples and ammonoid−bearing horizons. Note that the complete section of the Płucki main trench (extreme left) is drawn in different scale; samples between Pł−25 and Pł−18 come from small trenches. Above is a map of the Wietrznia quarries with locations of the sampled sections; the basal part of the section, with Ancyrodella soluta, has not been sampled because of low frequency of conodont elements (see Racki 1993); provisional zonation based on other Ancyrodella species is shown. Kowala section was measured at the eastern end of the quarry, the highest exploitation level. A. Wietrznia 1d of Racki et al. (1993; Racki and Bultynck 1993). B. Wietrznia 1e. C. Wietrznia block D of Szulczewski (1989). D. Wietrznia II.
Fig. 47 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 47. Succession of the earliest Famennian Klapperilepis gen. nov. populations at Płucki (see also Fig. 46). Aratio of the relative extent of the free carina (C/L) to the caudal lobe proclination angle is plotted for P1 (sp) elements. All measurable palmatolepidid platform elements from each sample are included (shape of the platform alone does not allow to discriminate species; they differ also in their more or less flat appearance). The number of species changes from one (Pł−20 and Pł−16) to two (Pł−42) to three (Pł−32). The pattern of variability of K. praetriangularis in the first Famennian sample Pł−20 (where it occurs alone as the only palmatolepidid) is indistinguishable from that in the latest Frasnian. Note increase of variability in sample Pł−16 which may be an effect of released competition from other palmatolepidids and character displacement in Pł−42, where the lineage of K. clarki appears, documented both by the diagnostic M (ne) elements and bimodal frequency distribution of P1 elements morphs. Subsequent changes resulted from a combination of immigration events and a phyletic evolution at the site.
Fig. 53 in Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland
Fig. 53. Silicified goniatites from the topmost Frasnian strata at Kowala Quarry. Specimens rarely preserve suture, species identification is thus in many cases based on pressumed conspecifity with better preserved specimens from nearby coeval cephalopod limestone of Płucki; all × 2. A. Archoceras varicosum (Drevermann, 1901), sample Ko−134, specimen ZPAL AmVII/1667. B–E. Manticoceras adorfense (Wedekind, 1913), samples Ko−134 (B) Ko−142 (C, D) and Ko−159 (E), specimens ZPAL AmVII/1610, 1717, 1713, and 963.F–H. Involute Manticoceras? sp. sample Ko−159, specimens ZPAL AmVII/964, 962, and 960. I, J. Manticoceras drevermanni (Wedekind, 1913), sample Ko−142 (I) and Ko−134, specimens ZPAL AmVII/1714 and 1675. K–N. Linguatornoceras sp. aff L. clausum (Glenister, 1958), samples Ko−142 (K, M, N) and Ko−134 (L), specimens ZPAL AmVII/1716, 1671, 1715, and 1718. O. Crickites holzapfeli Wedekind, 1913 (or perhaps Sphaeromanticoceras sp.), sample Ko−159, specimen ZPAL AmVII/958.P–R. Aulatornoceras belgicum (Matern, 1931), samples Ko−142 (P, R) and Ko−134 (Q), specimens ZPAL AmVII/1719, 1668, and 1714.
Fig. 9 in Frasnian-Famennian extinction and recovery of rhynchonellid brachiopods from the East European Platform
Fig. 9. Transverse serial sections of Ripidiorhynchus livonicus (Buch, 1834) from the early Frasnian of the Main Devonian Field, northwestern Russia. Numbers refer to distances in mm from the top of the ventral umbo. A. CNIGR 1/13076. B. Longitudinal section. CNIGR 2/13076, Chudovo beds, Vybuty rapids, Velikaya River, Pskov region. C. CNIGR 3/13076, Dubnik beds, quarry near town Stary Izborsk, Pechory district.
Fig. 7 in Frasnian-Famennian extinction and recovery of rhynchonellid brachiopods from the East European Platform
Fig. 7. Transverse serial sections of Ripidiorhynchuschencinensis sp. nov. from the Givetian, Jaźwica Mbr., Góra Zamkowa, Poland. Numbers refer to distances in mm from the top of the ventral umbo. A. GIUS 4−216/R−10−2. B. Longitudinal section of GIUS 4−216/R−10−3.
Fig. 6 in Frasnian-Famennian extinction and recovery of rhynchonellid brachiopods from the East European Platform
Fig. 6. Ripidiorhynchus chencinensis sp. nov. from the late Givetian of Poland. A–D. Holotype, GIUS 4−216/R−10 in ventral, dorsal, lateral, and anterior views, × 1.5. E–H. Juvenile shell GIUS 4−216/R−10−1 in ventral, dorsal, lateral, and anterior views, × 1.5. Jaźwica Mbr., Góra Zamkowa.
Fig. 10. A–I in Frasnian-Famennian extinction and recovery of rhynchonellid brachiopods from the East European Platform
Fig. 10. A–I. Ripidiorhynchushuotinus (Verneuil, 1845). A–D. CNIGR 763/4572 from the early Famennian, Zadonsk Horizon, central regions of Russia, in ventral, dorsal, anterior, and lateral views. Sosna River basin. E–I.CNIGR 4/13076, ventral, dorsal, lateral, posterior, and anterior views. Kamenka village. J–Q. Ripidiorhynchusgriasicus (Nalivkin, 1934), from early Famennian, Elets Horizon, Sosna River basin. J–M. Neotype. CNIGR 266/4572, ventral, dorsal, anterior, and lateral views. N–Q. CNIGR1046/4572, ventral, lateral, dorsal, and anterior views. R–U. Ripidiorhynchuscernosemicus (Nalivkin, 1934) CNIGR 862/4572, ventral, dorsal, anterior, and lateral views. Early Famennian, Zadonsk Horizon, Sosna River basin. All × 1.5.
Fig. 15 in Frasnian-Famennian extinction and recovery of rhynchonellid brachiopods from the East European Platform
Fig. 15. Transverse serial sections of Globulirhynchiaminima sp. nov. from the early Famennian, Evlanovo Horizon, Don River basin, Zadonsk region, central Russia.Numbers refer to distances in mm from the top of the ventral umbo. A. CNIGR 15/13076. B. CNIGR 16/13076. C. CNIGR 17/13076.
Fig. 7 in Chondrichthyan fauna of the Frasnian-Famennian boundary beds in Poland
Fig. 7. Non−chondrichthyan ichthyoliths from the Frasnian–Famennian boundary beds. A. Acanthodian scale, ZPALP.IV/313, from Płucki, sample P−1, Pa. linguiformis Zone, lateral view, × 90. B–E. Specimens from Dębnik, sample 13, Early Pa. triangularis Zone. B. Acanthodian scale, IGPUW/Ps/4/14, basal view, × 80. C. Sarcopterygian Strunius rolandi, parasymphysial tooth, IGPUW/Ps/4/15, lateral view, × 40. D. Actinopterygian scale, IGPUW/Ps/4/16, × 60. E. Osteichthyan jaw fragment, IGPUW/Ps/4/17, × 60. All SEM micrographs.
Fig. 5. A in Frasnian-Famennian extinction and recovery of rhynchonellid brachiopods from the East European Platform
Fig. 5. A. Stratigraphic column of section 8 (see Fig. 3B); distribution of Globulirhynchia minima sp. nov. and other co−occurring brachiopods within the Evlanovo Horizon. B. Stratigraphical column of section 5 (see Fig. 3B); the uppermost part of the Frasnian, Livny Horizon. C. Stratigraphical column of section 6 (see Fig. 3B); appearance and distribution of Ripidiorhynchushuotinus (Verneuil, 1845) in Zadonsk Horizon. D. Stratigraphical column of section 1 (see Fig. 3B); distribution of Ripidiorhynchus griasicus (Nalivkin, 1934) in Elets horizon.
Fig. 6. Protacrodus vetustus Jaekel, 1921. A in Chondrichthyan fauna of the Frasnian-Famennian boundary beds in Poland
Fig. 6. Protacrodus vetustus Jaekel, 1921. A. Tooth−whorl composed of three teeth, right side incomplete, IGPUW/Ps/1/222, sample Md−I/1, Late Pa. triangularis Zone, occlusal view, × 30. B–D. Large, almost completely preserved tooth, IGPUW/Ps/4/13, sample Ko−SF, Pa. linguiformis Zone, oblique lingual, oblique labial and lingual views, × 17. All SEM micrographs.
Fig. 5 in Chondrichthyan fauna of the Frasnian-Famennian boundary beds in Poland
Fig. 5. Chondrichthyan microremains from Płucki. A, B. Branchial denticles?, IGPUW/Ps/4/10 and IGPUW/Ps/4/11, sample KWK3. C. Stethacanthus resistens sp. nov. tooth, IGPUW/Ps/4/12, sample KWK4, basal−labial view. All × 60. All SEM micrographs.
Fig. 4 in Chondrichthyan fauna of the Frasnian-Famennian boundary beds in Poland
Fig. 4. Chondrichthyan microremains from Dębnik, sample Dz−13, Early Pa. triangularis Zone. A, B. "Ctenacanth−type" scales, IGPUW/Ps/4/4 and IGPUW/Ps/4/5. C–I. Stethacanthus resistens sp. nov. teeth. C, D. Problematic tricuspid tooth, IGPUW/Ps/4/6, labial and occlusal views. E. IGPUW/Ps/4/7, basal view. F. IGPUW/Ps/4/8, occlusal view. G–I. IGPUW/Ps/4/9, occlusal, lingual and labial views respectively. All × 80. All SEM micrographs.
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