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A new late Westphalian fossil marattialean fern from Nova Scotia
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SYSNO ASEP 0145739 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název A new late Westphalian fossil marattialean fern from Nova Scotia Tvůrce(i) Pšenička, J. (CZ)
Bek, Jiří (GLU-S) RID, SAI, ORCID
Zodrow, E. (CA)
Cleal, J. CH. (GB)
Hemsley, A. R. (GB)Zdroj.dok. Botanical Journal of the Linnean Society. - : Oxford University Press - ISSN 0024-4074
Roč. 142, č. 2 (2003), s. 199-212Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Pennsylvanian ; sporangia ; spores Vědní obor RIV DB - Geologie a mineralogie CEZ AV0Z3013912 - GLU-S UT WOS 000183522500003 EID SCOPUS 0038348384 DOI 10.1046/j.1095-8339.2003.00169.x Anotace Sydneia manleyi gen. et sp. nov. is based on part a fertile frond from the upper Westphalian D of the Sydney Coalfield, Nova Scotia, Canada. It has small synangia composed of laterally fused sporangia that are elongate and with a circular cross-section. The sporangia yielded variably sized monolete and trilete spores with laevigate and microspinate ornamentation; intermediate forms were also observed. The spores can be correlated with the sporae dispersae species Latosporites minutus, Punctatosporites oculus and Laevigatosporites minimus. Size distribution of the spores is variable and highly skewed, suggesting heterogeneity of the spores within the sporangium. Spore ultrastructure indicates that the fossil is part of a fern, and the morphology of the spores and synangia indicate marattialean affinities. Pracoviště Geologický ústav Kontakt Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Rok sběru 2004
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