Species
Belonechitina oeselensis Nestor, 2005
Taxon description
Nestor, V., 2005
Diagnosis. Vesicle conical, with concave or convex base and broadly to bluntly rounded basal margin. The vesicle flanks are slightly convex, tapering towards the aperture, where a thin-walled collerette occurs. The neck is not distinguished from the chamber, neither shoulder nor flexure is present. The central part of the base carries a wide conical mucron, formed by a thin membrane or wall. The vesicle wall has dense fine rugose or granular ornamentation, somewhat coarser at the base.
Type specimen data
holotype : Department of Geology, TalTech GIT 427-3 , Kaugatuma 509 borehole , Adavere Stage234.05 m
Synonymy list
1994 Conochitina sp.6 — Nestor , pp. 42 , fig. 21:1-2
2003 Conochitina sp.6 Nestor — Loydell et al. , fig. 16:u
2005 Belonechitina oeselensis sp. nov. — Nestor , pp. 106 , fig. 1:5a;5b
Selection of related publications
Loydell, D. K., Nestor, V., Männik, P. 2010. Integrated biostratigraphy of the lower Silurian of the Kolka-54 core, Latvia. Geological Magazine 147, 2, 253-280. DOI:10.1017/S0016756809990574
Rubel, M., Hints, O., Männik, P., Meidla, T., Nestor, V., Sarv, L., Sibul, I. 2007. Lower Silurian biostratigraphy of the Viirelaid core, western Estonia. Estonian Journal of Earth Sciences 56, 4, 193-204. DOI:10.3176/earth.2007.01
Nestor, V. 2005. Chitinozoans of the Margachitina margaritana Biozone and the Llandovery-Wenlock boundary in West Estonian drill cores. Proceedings of the Estonian Academy of Sciences. Geology 54, 2, 87-111. DOI:10.3176/geol.2005.2.02
Märss, T. 2003. Distribution of Silurian agnathans and fish microremains. Estonian Geological Sections Bulletin 5, 14-15. Geological Survey of Estonia.
Occurrence in samples (CONOP)
Häädemeeste 172 borehole : 3 sample(s)
Ikla borehole : 5 sample(s)
Are 171 borehole : 5 sample(s)
Aispute 41 borehole : 5 sample(s)
Kõrkküla 863 borehole : 5 sample(s)
Kaugatuma 509 borehole : 6 sample(s)
Kolka 54 borehole : 4 sample(s)
Kirikuküla borehole : 13 sample(s)
Nagli 106 borehole : 7 sample(s)
Ohesaare borehole : 7 sample(s)
Nässuma 825 borehole : 2 sample(s)
Lõetsa 842 borehole : 3 sample(s)
Lihula 211 borehole : 2 sample(s)
Uulu 345 borehole : 3 sample(s)
Paatsalu 527 borehole : 5 sample(s)
Ruhnu 500 borehole : 7 sample(s)
Pavilosta 51 borehole : 2 sample(s)
Pulli 2 borehole : 9 sample(s)
Puikule 42 borehole : 2 sample(s)
Varbla 502 borehole : 8 sample(s)
Staicele 4 borehole : 4 sample(s)
Tinuri 818 borehole : 3 sample(s)
Viki borehole : 11 sample(s)
Vändra 333 borehole : 2 sample(s)
Tori borehole : 1 sample(s)
Kashino borehole : 2 sample(s)
Nitaure borehole : 1 sample(s)
Pärnu (Livonia) borehole : 1 sample(s)
Ventspils D-3 borehole : 7 sample(s)
Viirelaid borehole : 1 sample(s)
Nurme puurauk : 6 sample(s)
Grötlingbo 1 borehole, Gotland : 5 sample(s)
Viluvere 324 borehole : 9 sample(s)
Suigu borehole : 2 sample(s)
Pärnu-Jaagupi borehole : 2 sample(s)
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Classification
References based on distribution
- Rubel et al., 2007 Viirelaid borehole Adavere Stage
- Nestor, V., 2005 Viki borehole 144 - 172 Adavere Stage
- Märss, 2003b Kaugatuma 509 borehole 240.05 - 270.1 Adavere Stage
- Nestor, V., 2005 Ruhnu 500 borehole 486.2 - 487.7 Adavere Stage
- Nestor, V., 2005 Nagli 106 borehole 612 - 642 Adavere Stage
- Nestor, V., 2005 Aizpute 41 borehole 926 - 961 Adavere Stage
- Nestor, V., 2005 Ventspils D-3 borehole 798 - 842.8 Adavere Stage
Occurrence in samples