Tenchovia bulgariaensis gen. et sp.nov. from the Pennsylvanian of the Dobrudza Coalfield, Bulgaria

Pages: 
pp. 69-76
West-Bohemian Museum in Pilsen, Kopeckého sady 2, 30100 Plzeň, Czech Republic
Institute of Geology, Academy of Sciences of the Czech Republic, Rozvojová 135, 165 00 Prague 6, Czech Republic
Abstract: 

Tenchova gen. nov. consists of just one species (T. bulgariaensis sp. nov.), whose holotype is from a borehole in the Dobrudza Coalfield and is Westphalian in age. As with some other Carboniferous plant species known from compressions, the sporangia possess a lateral annulus. It is evident that the general pattern of morphology of the fructification is quite different than all other similar species with laterally-annulate sporangia. In situ spores from a sphenopteroid fern are described for the first time from the Bulgarian Carboniferous. Trilete microgranulate microspores, about 19 µm in diameter belong to the dispersed microspore species Granulatisporites minutus.

Й. Пшеничка, Ю. Бек. Tenchovia bulgariaensis – новый род и вид из пенсильваниена Добруджанского камонноугольного бассейна. Новый род Tenchovia передставлен одним новым видом – T. bulgariaensis. Его голлотип устоновлен в буровой скважине в Добруджанском каменноугольном бассейне. Возраст – вестфальский. Его спорангии аналогично некаторым другим карбонским компримированным растениям, имеют латеральные аннулусы. Основные морфологические черты его фруктификации определенно отличаются от других сходных видов с такими спорангиями. Найденные „in situ“ споры сфеноптероидного характера описываются впервые в отложениях карбона Болгарии. В тех же отложениях трилетовые микрозеристые микроспоры диаметром в 19 µm принадлежат к распространенному виду Granulatisporites minutus.

Keywords: 

Carboniferous, fern, spenopterids, Tenchovia, in situ spores, Granulatisporites, Bulgaria

VOLUME 34 (1-2)/June 2004 IGCP 469 Late Westphalian terrestrial biotas and environments

Department of Biodiversity & Systematic Biology, National Museums & Galleries of Wales, Cathays Park, Cardiff CF10 3NP, United Kingdom

Department of Biodiversity and Systematic Biology, National Museums and Galleries of Wales, Cathays Park, Cardiff CF10 3NP, United Kingdom
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Geological Institute, Bulgarian Academy of Sciences, Acad. C. Bonchev Street, Block 24, Sofia 1113, Bulgaria
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Department of Geology, University College of Cape Breton, Sydney, Nova Scotia, Canada B1P 6L2

Geological insitute, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Block 24, Sofia 1113, Bulgaria

Department of Biodiversity alld Systematic Biology, National Museums alld Galleries of Wales, Cathays Park, Cardiff CF1O 3NP, UK

Maidstone Museum & Bentlif Art Gallery, St Faith’s St., Maidstone, Kent, ME14 1LH and S.H.E.S., University of Reading, UK

West-Bohemian Museum in Pilsen, Kopeckého sady 2, 30100 Plzeň, Czech Republic
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Institute of Geology, Academy of Sciences of the Czech Republic, Rozvojová 135, 165 00 Prague 6, Czech Republic

Geological Institute, Bulgarian Academy of Sciences, Acad. C. Bonchev Street, Block 24, Sofia 1113, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Block 24, Sofia 1113, Bulgaria

lnstitute of Rural Sciences, University of Wales Aberystwyth, Llanbadarn Fawr, Aberystwyth, Ceredigion SY23 3AL, UK
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Block 24, Sofia 1113, Bulgaria