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Nestor, V., 2009a

Nestor, V. 2009. Biostratigraphy of the Ludlow chitinozoans from East Baltic drill cores. Estonian Journal of Earth Sciences 58 (3), 170-184. | PDF | DOI | DETAILS

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ID1195
ReferenceNestor, V., 2009a
AuthorNestor, V.
Year2009
TitleBiostratigraphy of the Ludlow chitinozoans from East Baltic drill cores
JournalEstonian Journal of Earth Sciences
Volume58
Number3
pgs.170-184
Source typearticle in journal
LanguageEnglish
DOI10.3176/earth.2009.3.02
AbstractThe distribution of chitinozoans in the East Baltic Ludlow sequences was studied in the Ohesaare, Ventspils, Pavilosta, and Dubovskoye drill core sections. The Angochitina elongata, Eisenackitina lagenomorpha, and Eisenackitina barrandei biozones were described and correlated with the regional stratigraphical units, as well as with conodont and vertebrate biozones in the Ohesaare core.

Sections studied or mentioned

Localitypgs.Figs.Remarks
Dubovskoye borehole17661230-1310m Ludlow
Ohesaare borehole173367.7-124.0 Ludlow
Pavilosta 51 borehole1755620-820 m Ludlow
Ventspils D-3 borehole1744420-600m Ludlow

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<i><i>Ancyrochitina ansarviensis</i> | Ancyrochitina ansarviensis Laufeld, 1974 (sensu Sutherland)</i><br />Pavilosta 51 borehole, 644.60 m, Ludfordian ( 576-57) <i><i>Ancyrochitina brevis</i></i><br />Ventspils D-3 borehole, 532.00 m, Gorstian ( 576-11) <i><i>Ancyrochitina brevispinosa</i></i><br />Ohesaare borehole, 118.00 m, Paadla Stage ( 576-4) <i><i>Ancyrochitina desmea</i></i><br />Ventspils D-3 borehole, 573.00 m, Gorstian ( 576-8) <i><i>Ancyrochitina diabolus</i></i><br />Ohesaare borehole, 112.60 m, Paadla Stage ( 576-9) <i><i>Ancyrochitina gogginensis</i></i><br />Pavilosta 51 borehole, 771.00 m, Gorstian ( 576-10) <i><i>Ancyrochitina pedavis</i></i><br />Pavilosta 51 borehole, 650.60 m, Ludfordian ( 576-45) <i><i>Angochitina</i> | Angochitina aff. echinata Eisenack, 1931</i><br />Dubovskoye borehole, 1299.00 m, Paadla Stage ( 576-34) <i><i>Angochitina ambrosi</i></i><br />Ohesaare borehole, 117.05 m, Paadla Stage ( 576-2) <i><i>Angochitina ambrosi</i></i><br />Ventspils D-3 borehole, 560.00 m, Gorstian ( 576-3) <i><i>Angochitina crassispina</i></i><br />Ventspils D-3 borehole, 476.70 m, Ludfordian ( 576-48) <i><i>Angochitina echinata</i></i><br />Pavilosta 51 borehole, 750.30 m, Gorstian ( 576-6) <i><i>Angochitina elongata</i></i><br />Ventspils D-3 borehole, 536.00 m, Gorstian ( 576-1) <i><i>Angochitina paucispinosa</i></i><br />Pavilosta 51 borehole, 620.20 m, Ludfordian ( 576-49) <i><i>Angochitina paucispinosa</i></i><br />Ohesaare borehole, 86.30 m, Kuressaare Stage ( 576-50) <i><i>Belonechitina latifrons</i></i><br />Ohesaare borehole, 110.40 m, Paadla Stage ( 576-16) <i><i>Belonechitina lauensis</i></i><br />Pavilosta 51 borehole, 804.30 m, Gorstian ( 576-17) <i><i>Belonechitina mortimerensis</i></i><br />Pavilosta 51 borehole, 749.00 m, Gorstian ( 576-18) <i><i>Chitinozoa</i> | Belonechitina sp. 1 Nestor, 2009</i><br />Pavilosta 51 borehole, 779.00 m, Gorstian ( 576-35) <i><i>Chitinozoa</i> | Belonechitina sp. 2 Nestor, 2009</i><br />Ventspils D-3 borehole, 516.00 m, Gorstian ( 576-40) <i><i>Chitinozoa</i> | Belonechitina sp. 3 Nestor, 2009</i><br />Ventspils D-3 borehole, 472.00 m, Ludfordian ( 576-61) <i><i>Chitinozoa</i> | Belonechitina? granosa (Laufeld, 1974)</i><br />Ventspils D-3 borehole, 476.70 m, Ludfordian ( 576-59) <i><i>Chitinozoa</i> | Calpichitina cf. hemsiensis (Laufeld, 1974)</i><br />Pavilosta 51 borehole, 641.20 m, Ludfordian ( 576-58) <i><i>Calpichitina gregaria</i></i><br />Dubovskoye borehole, 1246.60 m, Kuressaare Stage ( 576-63) <i><i>Calpichitina squamosa</i></i><br />Dubovskoye borehole, 1304.40 m, Paadla Stage ( 576-30) <i><i>Cingulochitina convexa</i></i><br />Pavilosta 51 borehole, 733.30 m, Ludfordian ( 576-19) <i><i>Cingulochitina gorstyensis</i></i><br />Pavilosta 51 borehole, 796.00 m, Gorstian ( 576-20) <i><i>Cingulochitina hedei</i></i><br />Dubovskoye borehole, 1299.00 m, Paadla Stage ( 576-46) <i><i>Cingulochitina</i> | Cingulochitina sp. 1 Nestor, 2009</i><br />Dubovskoye borehole, 1296.00 m, Paadla Stage ( 576-43) <i><i>Cingulochitina wronai</i></i><br />Dubovskoye borehole, 1311.20 m, Paadla Stage ( 576-38) <i><i>Conochitina claviformis</i></i><br />Pavilosta 51 borehole, 804.30 m, Gorstian ( 576-14) <i><i>Conochitina pachycephala</i></i><br />Pavilosta 51 borehole, 821.00 m, Gorstian ( 576-13) <i><i>Conochitina rudda</i></i><br />Ohesaare borehole, 118.00 m, Paadla Stage ( 576-12) <i><i>Conochitina tuba</i></i><br />Pavilosta 51 borehole, 821.00 m, Gorstian ( 576-15) <i><i>Eisenackitina barrandei</i></i><br />Pavilosta 51 borehole, 695.00 m, Ludfordian ( 576-54) <i><i>Eisenackitina clunensis</i></i><br />Pavilosta 51 borehole, 779.00 m, Gorstian ( 576-26) <i><i>Eisenackitina elongata</i></i><br />Pavilosta 51 borehole, 711.00 m, Ludfordian ( 576-42) <i><i>Eisenackitina intermedia</i></i><br />Pavilosta 51 borehole, 804.30 m, Gorstian ( 576-24) <i><i>Eisenackitina kerria</i></i><br />Pavilosta 51 borehole, 775.00 m, Gorstian ( 576-23) <i><i>Eisenackitina lagenomorpha</i></i><br />Ohesaare borehole, 89.30 m, Kuressaare Stage ( 576-32) <i><i>Eisenackitina oviformis</i></i><br />Pavilosta 51 borehole, 676.40 m, Ludfordian ( 576-51) <i><i>Eisenackitina philipi</i></i><br />Pavilosta 51 borehole, 746.70 m, Paadla Stage ( 576-33) <i><i>Chitinozoa</i> | Eisenackitina sp. 1 Nestor, 2009</i><br />Pavilosta 51 borehole, 775.00 m, Gorstian ( 576-28) <i><i>Chitinozoa</i> | Eisenackitina sp. 2 Nestor, 2009</i><br />Pavilosta 51 borehole, 767.00 m, Gorstian ( 576-29) <i><i>Chitinozoa</i> | Eisenackitina sp. 3 Nestor, 2009</i><br />Pavilosta 51 borehole, 626.20 m, Ludfordian ( 576-64) <i><i>Chitinozoa</i> | Eisenackitina sp. 4 Nestor, 2009</i><br />Pavilosta 51 borehole, 623.20 m, Ludfordian ( 576-62) <i><i>Eisenackitina toddingensis</i></i><br />Pavilosta 51 borehole, 758.00 m, Gorstian ( 576-25) <i><i>Linochitina erratica</i></i><br />Pavilosta 51 borehole, 821.00 m, Gorstian ( 576-21) <i><i>Plectochitina</i> | Plectochitina sp.</i><br />Ventspils D-3 borehole, 484.50 m, Ludfordian ( 576-27) <i><i>Plectochitina</i> | Plectochitina sp.</i><br />Pavilosta 51 borehole, 684.30 m, Ludfordian ( 576-55) <i><i>Plectochitina</i> | Plectochitina sp.</i><br />Dubovskoye borehole, 1257.00 m, Kuressaare Stage ( 576-53) <i><i>Pterochitina perivelata</i></i><br />Dubovskoye borehole, 1257.00 m, Kuressaare Stage ( 576-52) <i><i>Ramochitina</i> | Ramochitina sp.</i><br />Dubovskoye borehole, 1296.00 m, Paadla Stage ( 576-47) <i><i>Chitinozoa</i> | Ramochitina sp. 2 Nestor, 2009</i><br />Ventspils D-3 borehole, 521.30 m, Gorstian ( 576-44) <i><i>Chitinozoa</i> | Ramochitina sp. 2 Nestor, 2009</i><br />Pavilosta 51 borehole, 653.00 m, Ludfordian ( 576-56) <i><i>Ramochitina spinipes</i></i><br />Pavilosta 51 borehole, 796.00 m, Gorstian ( 576-7) <i><i>Ramochitina swifti</i></i><br />Ventspils D-3 borehole, 536.00 m, Gorstian ( 576-22) <i><i>Ramochitina villosa</i></i><br />Pavilosta 51 borehole, 736.00 m, Ludfordian ( 576-41) <i><i>Chitinozoa</i> | Ramochitina? sp. 1 Nestor, 2009</i><br />Ventspils D-3 borehole, 532.00 m, Gorstian ( 576-39) <i><i>Sphaerochitina acanthifera</i> | Sphaerochitina acanthifera Eisenack, 1955</i><br />Pavilosta 51 borehole, 739.00 m, Ludfordian ( 576-31) <i><i>Sphaerochitina impia</i></i><br />Ohesaare borehole, 118.00 m, Paadla Stage ( 527-50) <i><i>Sphaerochitina</i> | Sphaerochitina sp.</i><br />Dubovskoye borehole, 1284.00 m, Paadla Stage ( 576-36) <i><i>Sphaerochitina</i> | Sphaerochitina sp.</i><br />Pavilosta 51 borehole, 796.00 m, Gorstian ( 576-37) <i><i>Sphaerochitina sphaerocephala</i></i><br />Ohesaare borehole, 72.95 m, Kuressaare Stage ( 576-60)