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Nestor, V., 2012

Nestor, V. 2012. A summary and revision of the East Baltic Silurian chitinozoan biozonation. Estonian Journal of Earth Sciences 61 (4), 242-260. | PDF | DOI | DETAILS

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ID2415
ReferenceNestor, V., 2012
AuthorNestor, V.
Year2012
TitleA summary and revision of the East Baltic Silurian chitinozoan biozonation
JournalEstonian Journal of Earth Sciences
Volume61
Number4
pgs.242-260
Source typearticle in journal
LanguageEnglish
DOI10.3176/earth.2012.4.05
AbstractThe biostratigraphical data on the East Baltic Silurian chitinozoans are summarized. Based on the study of nine East Baltic drill cores, 28 regional chitinozoan zonal units, including 26 biozones and 2 interzones, are briefly characterized. In comparison with earlier publications, the Silurian chitinozoan biozonation chart is essentially updated, some biozonal units are added, some renamed and several previous subdivisions have been abolished or replaced. The ranges of the stratigraphically most important chitinozoan species throughout the East Baltic Silurian are discussed. Regional chitinozoan biozones are correlated with the global chitinozoan biozones and graptolite biozones, as well as with the regional stratigraphical units of Estonia, Latvia and the Kaliningrad district.

Sections studied or mentioned

Localitypgs.Figs.Remarks
Dubovskoye borehole2431
Gussev 1 borehole, Kaliningrad oblast2431
Kashino borehole, Kaliningrad oblast2431
Kaugatuma 509 borehole2431
Kolka 54 borehole2431
Ohesaare borehole2431
Pavilosta 51 borehole2431
Ruhnu 500 borehole2431
Ventspils D-3 borehole2431
Viki borehole2431

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<i><i>Ancyrochitina convexa</i></i><br />Ruhnu 500 borehole, 536.00 m, Raikküla Stage ( 213-1) <i><i>Ancyrochitina convexa</i></i><br />Ruhnu 500 borehole, 536.00 m, Raikküla Stage ( 213-1) <i><i>Ancyrochitina convexa</i></i><br />Ruhnu 500 borehole, 536.00 m, Raikküla Stage ( 213-1) <i><i>Ancyrochitina desmea</i></i><br />Ventspils D-3 borehole, 613.00 m, Ludlow ( 527-42) <i><i>Ancyrochitina fragilis</i></i><br />Ohesaare borehole, 65.70 m, Kaugatuma Stage ( 189-38) <i><i>Ancyrochitina laevaensis</i></i><br />Laeva 10 borehole, 122.50 m, Juuru Stage ( 212-1) <i><i>Ancyrochitina laevaensis</i></i><br />Laeva 10 borehole, 122.50 m, Juuru Stage ( 212-1) <i><i>Ancyrochitina lemniscata</i></i><br />Ventspils D-3 borehole, 296.00 m, Přidoli ( 607-64) <i><i>Ancyrochitina tomentosa</i></i><br />Dubovskoye borehole, 1160.00 m, Přidoli ( 607-23) <i><i>Angochitina elongata</i></i><br />Kaugatuma GI borehole, 81.10 m, Paadla Stage ( 189-28) <i><i>Angochitina longicollis</i></i><br />Kolka 54 borehole, 584.90 m, Adavere Stage ( 546-33) <i><i>Anthochitina superba</i></i><br />Ventspils D-3 borehole, 335.10 m, Přidoli ( 607-53) <i><i>Belonechitina latifrons</i></i><br />Ohesaare borehole, 110.40 m, Paadla Stage ( 576-16) <i><i>Belonechitina postrobusta</i></i><br />Ikla borehole, 515.70 m, Juuru Stage ( 212-10) <i><i>Belonechitina postrobusta</i></i><br />Ikla borehole, 515.70 m, Juuru Stage ( 212-10) <i><i>Chitinozoa</i> | Belonechitina? granosa (Laufeld, 1974)</i><br />Ohesaare borehole, 79.20 m, Kuressaare Stage ( 189-34) <i><i>Cingulochitina cingulata</i></i><br />Ruhnu 500 borehole, 359.25 m, Jaagarahu Stage ( 189-20) <i><i>Conochitina acuminata</i></i><br />Ohesaare borehole, 349.40 m, Adavere Stage ( 272-62) <i><i>Conochitina alargada</i></i><br />Kolka 54 borehole, 618.10 m, Raikküla Stage ( 546-11) <i><i>Conochitina argillophila</i></i><br />Ohesaare borehole, 260.30 m, Jaagarahu Stage ( 220-45) <i><i>Conochitina claviformis</i></i><br />Ohesaare borehole, 192.90 m, Jaagarahu Stage ( 272-69) <i><i>Conochitina cribrosa</i></i><br />Ohesaare borehole, 188.20 m, Jaagarahu Stage ( 217-7) <i><i>Conochitina cribrosa</i></i><br />Ohesaare borehole, 188.20 m, Jaagarahu Stage ( 217-7) <i><i>Conochitina emmastensis</i></i><br />Ventspils D-3 borehole, 815.00 m, Telychian ( 423-17) <i><i>Conochitina malleus</i> | Conochitina malleus (nomen nudum) Van Grootel, 1990</i><br />Kolka 54 borehole, 614.60 m, Raikküla Stage ( 546-18) <i><i>Conochitina mamilla</i></i><br />Pulli 2 borehole, 10.50 m, Jaani Stage ( 220-27) <i><i>Conochitina pachycephala</i></i><br />Kolka 54 borehole, 486.20 m, Jaagarahu Stage ( 546-78) <i><i>Conochitina postarmillata</i></i><br />Ventspils D-3 borehole, 647.00 m, Paadla Stage ( 527-40) <i><i>Conochitina proboscifera</i></i><br />Kolka 54 borehole, 581.90 m, Adavere Stage ( 546-44) <i><i>Conochitina subcyatha</i></i><br />Ruhnu 500 borehole, 333.00 m, Jaagarahu Stage ( 217-18) <i><i>Conochitina tuba</i></i><br />Staicele 4 borehole, 274.50 m, Jaani Stage ( 350-17) <i><i>Eisenackitina barrandei</i></i><br />Pavilosta 51 borehole, 695.00 m, Ludfordian ( 576-54) <i><i>Eisenackitina dolioliformis</i></i><br />Kaugatuma 509 borehole, 246.45 m, Adavere Stage ( 427-2) <i><i>Eisenackitina kerria</i></i><br />Ohesaare borehole, 63.00 m, Kaugatuma Stage ( 607-7) <i><i>Eisenackitina lagenomorpha</i></i><br />Kolka 54 borehole, 282.20 m, Kuressaare Stage ( 189-30) <i><i>Eisenackitina philipi</i></i><br />Pavilosta 51 borehole, 746.70 m, Paadla Stage ( 576-33) <i><i>Eisenackitina spongiosa</i></i><br />Ohesaare borehole, 260.30 m, Jaagarahu Stage ( 272-103) <i><i>Eisenackitina spongiosa</i></i><br />Ohesaare borehole, 260.30 m, Jaagarahu Stage ( 272-103) <i><i>Euconochitina electa</i></i><br />Kolka 54 borehole, 643.00 m, Raikküla Stage ( 546-6) <i><i>Fungochitina kosovensis</i></i><br />Dubovskoye borehole, 1184.00 m, Přidoli ( 607-13) <i><i>Fungochitina pistilliformis</i></i><br />Dubovskoye borehole, 1059.00 m, Přidoli ( 607-14) <i><i>Margachitina margaritana</i></i><br />Ohesaare borehole, 300.70 m, Jaani Stage ( 220-9) <i><i>Salopochitina filifera</i></i><br />Dubovskoye borehole, 1008.60 m, Přidoli ( 607-50) <i><i>Sphaerochitina indecora</i></i><br />Ohesaare borehole, 165.90 m, Jaagarahu Stage ( 272-203) <i><i>Sphaerochitina lycoperdoides</i></i><br />Ohesaare borehole, 147.60 m, Rootsiküla Stage ( 527-11) <i><i>Sphaerochitina sphaerocephala</i></i><br />Ohesaare borehole, 72.95 m, Kuressaare Stage ( 576-60) <i><i>Spinachitina fragilis</i></i><br />Kolka 54 borehole, 660.50 m, Juuru Stage ( 546-3) <i><i>Spinachitina maennili</i></i><br />Ikla borehole, 462.90 m, Raikküla Stage ( 213-3) <i><i>Spinachitina maennili</i></i><br />Ikla borehole, 462.90 m, Raikküla Stage ( 213-3) <i><i>Urnochitina urna</i></i><br />Dubovskoye borehole, 1145.30 m, Přidoli ( 607-39)