Zemes un vides zinātnes Earth and Environment Sciences - Latvijas ...
Zemes un vides zinātnes Earth and Environment Sciences - Latvijas ... Zemes un vides zinātnes Earth and Environment Sciences - Latvijas ...
144 ADVANCES IN PALAEOICHTHYOLOGY for biozonal purposes. N. alta is the topmost Pridolian vertebrate zonal fossil in the SVSS. However, a recent study, which includes the Lužni and Lithuanian boreholes, provides material (in preparation) for the revision of acanthodian zonality in this part. In the Lužni-4, Gomphonchus mediocostatus and Cheiracanthoides planus intervals are defined with the boundary between them at the depth of 176.3 m. In west Lithuania, all taxa of these two intervals (listed in Fig. 9) are recognized also, but the Pridolian zonal chart is captioned by the two other, presumedly younger associations of acanthodians, Vesperalia perplexa and Endemolepis inconstans characterizing the topmost profile part that appears absent? in Lužni-4. Conclusions 1. Detailed results obtained from the well sampled Lužni-4 core are very useful for a further regional acanthodian study of the Baltic Silurian from taxonomical, biozonal, correlational, palaeogeographical, and palaeobiogeographical aspects. 2. Eleven biostratigraphic intervals of acanthodians proposed may form the basis for the forthcoming zonal scheme of Latvia following the reappraisal of the available sampled acanthodian collections (Ventspils-3 D, Kolka-54, etc. boreholes). 3. Lužni-4 core contributes to the correction of previous records of the regional occurrence of stratigraphically significant taxa, e.g., zonal Nostolepis gracilis, for which the range must be extended down to the Ludlow. 4. Most acanthodians are represented here by shortened stratigraphic ranges that are mainly caused by their later entry into the sequence as compared with Lithuania. 5. Nevertheless, some taxa, such as Rohonilepis breviornatus, Nostolepis (cf.) linleyensis, Fecundosquama basiglobosa and many others of the late Pridoli, are of great interest as the potential indices for more detailed regional biozonality; some are applicable for wider interregional correlations. 6. Lužni-4 core contributes to the understanding of regional taxonomic diversity and the facies dependence of Silurian acanthodians, e.g., the newly described species Gomphonchus? minutus, Nostolepis latvica, N. alifera, Poracanthodes sulcatus, P. marssae are not found in Lithuania. Acknowledgements. - My special thanks to Habil. Dr V. Karatajute-Talimaa (Vilnius) for donation of acanthodian collection and helpful discussions on stratigraphic distribution of acanthodians and other groups of vertebrates. Dr T. Märss (Tallinn) is acknowledged for the help in the taxa determination and a possibility of acanthodian study of some Latvian and Estonian cores. Reviewers of the manuscript, Dr C. Burrow (Queensland) and Dr E. Lukševics (Riga) are acknowledged for comments and corrections. Dr V. Mikli (Tallinn) is thanked for the micrographs of acanthodian scales. This is a contribution to IGCP 491 Project: Middle Palaeozoic Vertebrate Biogeography, Palaeogeography and Climate.
J. Valiukevičius. Silurian acanthodians from Lūžņi-4 145 References Berg L. S. 1922. Genesis of names, or evolution grounded on the objective laws. St.Petersburg. 1- 306. (in Russian). Berg L. S. 1940. Classification of agnathans and fishes, both living and fossil. – Proceedings of Institute of Zoology of the USSR Academy of Sciences, 5 (2): 85-517. Moscow-St.Petersburg (in Russian). Brotzen F. 1934. Erster Nachweis von Unterdevon im Ostseegebiete durch Konglomeratgeschiebe mit Fischresten. II. Teil (Paläontologie). – Zeitschrift für Geschiebeforschung, 10: 1-65. Burrow C.J. 2003. Redescription of the gnathostome fish fauna from the mid-Palaeozoic Silverband Formation, the Grampians, Victoria. – Alcheringa, 27: 37-49. Burrow C.J., Simpson A.J. 1995. A new ischnacanthid acanthodian from the Late Silurian (Ludlow, ploeckensis Zone) Jack Formation, north Queensland. – Memoirs of the Queensland Museum, 38 (2): 383-395. Burrow C.J., Vergoossen J.M.J., Turner S., Uyeno T.T., Thorsteinsson R. 1999. Microvertebrate assemblages from the Upper Silurian of Cornwallis Island, Arctic Canada. – Canadian Journal of Earth Sciences, 36: 349-361. Denison R. 1979. Acanthodii. – In: H.-P. Schultze (ed.), Handbook of Paleoichthyology. 5: VI+1-62. Gustav Fischer Verlag; Stuttgart, New York. Gailite L.K. 1978. Pridolian ostracode zones of Latvia. – In: V.S. Sorokin (ed.), Stratigraphy of the Phanerozoic of the Baltic. Riga, Zinatne: 13-21 (in Russian). Gailite L.K., Ulst R.Ž. 1974. The Upper Silurian zonal units of Latvia. – In: V.S. Sorokin (ed.), Regional Geology of the Baltic. Riga, Zinatne: 38-44 (in Russian). Gailite L.K., Ulst R.Ž., Yakovleva V.I. 1987. Silurian stratotypical and reference sections of Latvia. – Riga, Zinatne: 1-183 (in Russian). Gross W. 1947. Die Agnathen und Acanthodier des obersilurischen Beyrichienkalks. – Palaeontographica, A. 96: 91-161. Gross W. 1956. Über Crossopterygier und Dipnoer aus dem baltischen Oberdevon im Zusammenhang einer vergleichenden Untersuchung des Porenkanalsystems paläozoischer Agnathen und Fische. – Kungliga Svenska Vetenskapsakademiens Handlingar, 5 (6): 1-140. Gross W. 1971. Downtonische und Dittonische Acanthodier-Reste des Ostseegebietes. – Palaeontographica, A. 136: 1-82. Karatajute-Talimaa V. 1978. Silurian and Devonian thelodonts of the USSR and Spitsbergen. – Vilnius, Mokslas: 1-336 (in Russian). Karatajute-Talimaa V. 2000. Significance of thelodonts (Agnatha) in correlation of the Upper Ordovician to Lower Devonian of the northern part of Eurasia. – In: A. Blieck & S. Turner (eds), Palaeozoic Vertebrate Biochronology and Global Marine/Non-Marine Correlation. Courier Forschungsinstitut Senckenberg, 223: 69-80. Lehman J.-P. 1937. Les Poissons du Downtonian de la Scanie. – Thése, Faculté des Sciences de l’Universite de Paris. Rennes: 1-98. Märss T. 1986. Silurian vertebrates of Estonia and West Latvia. – Fossilia Baltica, 1: 1-104+36 plates. Tallinn, Valgus (in Russian with English summary). Märss T. 1992. Vertebrate history in the Late Silurian. – Proceedings of the Estonian Academy of Sciences, Geology, 41 (4): 205-214. Märss T. 1997. Vertebrates of the Pridoli and Silurian-Devonian boundary beds in Europe. – Modern Geology, 21: 17-41. Märss T. 2000. Silurian vertebrate studies during 1990-1997. – In: A. Blieck & S. Turner (eds), Palaeozoic Vertebrate Biochronology and Global Marine/Non-Marine Correlation. Courier Forschungsinstitut Senckenberg, 223: 81-90. Märss T., Fredholm D., Talimaa V., Turner S., Jeppsson L., Nowlan G. 1995. Silurian vertebrate biozonal scheme. – Geobios, Mémoire Special, 19: 369-372. Villeurbanne.
- Page 93 and 94: O.A. Lebedev. A new tetrapod from R
- Page 95 and 96: O.A. Lebedev. A new tetrapod from R
- Page 97 and 98: O.A. Lebedev. A new tetrapod from R
- Page 99 and 100: ACTA UNIVERSITATIS LATVIENSIS, 2004
- Page 101 and 102: E. Lukševičs, I. Zupiņš. Sedime
- Page 103 and 104: E. Lukševičs, I. Zupiņš. Sedime
- Page 105 and 106: E. Lukševičs, I. Zupiņš. Sedime
- Page 107 and 108: E. Lukševičs, I. Zupiņš. Sedime
- Page 109 and 110: E. Lukševičs, I. Zupiņš. Sedime
- Page 111 and 112: E. Lukševičs, I. Zupiņš. Sedime
- Page 113 and 114: E. Lukševičs, I. Zupiņš. Sedime
- Page 115 and 116: E. Lukševičs, I. Zupiņš. Sedime
- Page 117 and 118: E. Lukševičs, I. Zupiņš. Sedime
- Page 119 and 120: E. Lukševičs, I. Zupiņš. Sedime
- Page 121 and 122: J. Valiukevičius. Silurian acantho
- Page 123 and 124: J. Valiukevičius. Silurian acantho
- Page 125 and 126: J. Valiukevičius. Silurian acantho
- Page 127 and 128: J. Valiukevičius. Silurian acantho
- Page 129 and 130: J. Valiukevičius. Silurian acantho
- Page 131 and 132: J. Valiukevičius. Silurian acantho
- Page 133 and 134: J. Valiukevičius. Silurian acantho
- Page 135 and 136: J. Valiukevičius. Silurian acantho
- Page 137 and 138: J. Valiukevičius. Silurian acantho
- Page 139 and 140: J. Valiukevičius. Silurian acantho
- Page 141 and 142: J. Valiukevičius. Silurian acantho
- Page 143: J. Valiukevičius. Silurian acantho
- Page 147 and 148: J. Valiukevičius. Silurian acantho
- Page 149 and 150: V. Pernegre, V. Dupret. Biostratigr
- Page 151 and 152: V. Pernegre, V. Dupret. Biostratigr
- Page 153 and 154: V. Pernegre, V. Dupret. Biostratigr
- Page 155 and 156: V. Pernegre, V. Dupret. Biostratigr
- Page 157 and 158: V. Pernegre, V. Dupret. Biostratigr
- Page 159 and 160: Ž. Žigaite. New telodont from Tuv
- Page 161 and 162: Ž. Žigaite. New telodont from Tuv
- Page 163 and 164: Ž. Žigaite. New telodont from Tuv
- Page 165 and 166: Ž. Žigaite. New telodont from Tuv
J. Valiukevičius. Silurian acanthodians from Lūžņi-4<br />
145<br />
References<br />
Berg L. S. 1922. Genesis of names, or evolution gro<strong>un</strong>ded on the objective laws. St.Petersburg. 1-<br />
306. (in Russian).<br />
Berg L. S. 1940. Classification of agnathans <strong>and</strong> fishes, both living <strong>and</strong> fossil. – Proceedings of<br />
Institute of Zoology of the USSR Academy of <strong>Sciences</strong>, 5 (2): 85-517. Moscow-St.Petersburg<br />
(in Russian).<br />
Brotzen F. 1934. Erster Nachweis von Unterdevon im Ostseegebiete durch Konglomeratgeschiebe<br />
mit Fischresten. II. Teil (Paläontologie). – Zeitschrift für Geschiebeforsch<strong>un</strong>g, 10: 1-65.<br />
Burrow C.J. 2003. Redescription of the gnathostome fish fa<strong>un</strong>a from the mid-Palaeozoic<br />
Silverb<strong>and</strong> Formation, the Grampians, Victoria. – Alcheringa, 27: 37-49.<br />
Burrow C.J., Simpson A.J. 1995. A new ischnacanthid acanthodian from the Late Silurian (Ludlow,<br />
ploeckensis Zone) Jack Formation, north Queensl<strong>and</strong>. – Memoirs of the Queensl<strong>and</strong> Museum,<br />
38 (2): 383-395.<br />
Burrow C.J., Vergoossen J.M.J., Turner S., Uyeno T.T., Thorsteinsson R. 1999. Microvertebrate<br />
assemblages from the Upper Silurian of Cornwallis Isl<strong>and</strong>, Arctic Canada. – Canadian Journal<br />
of <strong>Earth</strong> <strong>Sciences</strong>, 36: 349-361.<br />
Denison R. 1979. Acanthodii. – In: H.-P. Schultze (ed.), H<strong>and</strong>book of Paleoichthyology. 5:<br />
VI+1-62. Gustav Fischer Verlag; Stuttgart, New York.<br />
Gailite L.K. 1978. Pridolian ostracode zones of Latvia. – In: V.S. Sorokin (ed.), Stratigraphy of<br />
the Phanerozoic of the Baltic. Riga, Zinatne: 13-21 (in Russian).<br />
Gailite L.K., Ulst R.Ž. 1974. The Upper Silurian zonal <strong>un</strong>its of Latvia. – In: V.S. Sorokin (ed.),<br />
Regional Geology of the Baltic. Riga, Zinatne: 38-44 (in Russian).<br />
Gailite L.K., Ulst R.Ž., Yakovleva V.I. 1987. Silurian stratotypical <strong>and</strong> reference sections of<br />
Latvia. – Riga, Zinatne: 1-183 (in Russian).<br />
Gross W. 1947. Die Agnathen <strong>un</strong>d Acanthodier des obersilurischen Beyrichienkalks. –<br />
Palaeontographica, A. 96: 91-161.<br />
Gross W. 1956. Über Crossopterygier <strong>un</strong>d Dipnoer aus dem baltischen Oberdevon im<br />
Zusammenhang einer vergleichenden Untersuch<strong>un</strong>g des Porenkanalsystems paläozoischer<br />
Agnathen <strong>un</strong>d Fische. – K<strong>un</strong>gliga Svenska Vetenskapsakademiens H<strong>and</strong>lingar, 5 (6): 1-140.<br />
Gross W. 1971. Downtonische <strong>un</strong>d Dittonische Acanthodier-Reste des Ostseegebietes. –<br />
Palaeontographica, A. 136: 1-82.<br />
Karatajute-Talimaa V. 1978. Silurian <strong>and</strong> Devonian thelodonts of the USSR <strong>and</strong> Spitsbergen. –<br />
Vilnius, Mokslas: 1-336 (in Russian).<br />
Karatajute-Talimaa V. 2000. Significance of thelodonts (Agnatha) in correlation of the Upper<br />
Ordovician to Lower Devonian of the northern part of Eurasia. – In: A. Blieck & S. Turner<br />
(eds), Palaeozoic Vertebrate Biochronology <strong>and</strong> Global Marine/Non-Marine Correlation.<br />
Courier Forsch<strong>un</strong>gsinstitut Senckenberg, 223: 69-80.<br />
Lehman J.-P. 1937. Les Poissons du Downtonian de la Scanie. – Thése, Faculté des <strong>Sciences</strong> de<br />
l’Universite de Paris. Rennes: 1-98.<br />
Märss T. 1986. Silurian vertebrates of Estonia <strong>and</strong> West Latvia. – Fossilia Baltica, 1: 1-104+36<br />
plates. Tallinn, Valgus (in Russian with English summary).<br />
Märss T. 1992. Vertebrate history in the Late Silurian. – Proceedings of the Estonian Academy<br />
of <strong>Sciences</strong>, Geology, 41 (4): 205-214.<br />
Märss T. 1997. Vertebrates of the Pridoli <strong>and</strong> Silurian-Devonian bo<strong>un</strong>dary beds in Europe. –<br />
Modern Geology, 21: 17-41.<br />
Märss T. 2000. Silurian vertebrate studies during 1990-1997. – In: A. Blieck & S. Turner (eds),<br />
Palaeozoic Vertebrate Biochronology <strong>and</strong> Global Marine/Non-Marine Correlation. Courier<br />
Forsch<strong>un</strong>gsinstitut Senckenberg, 223: 81-90.<br />
Märss T., Fredholm D., Talimaa V., Turner S., Jeppsson L., Nowlan G. 1995. Silurian vertebrate<br />
biozonal scheme. – Geobios, Mémoire Special, 19: 369-372. Villeurbanne.
Change language