Number of the records: 1
A new late Westphalian fossil marattialean fern from Nova Scotia
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SYSNO ASEP 0145739 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A new late Westphalian fossil marattialean fern from Nova Scotia Author(s) Pšenička, J. (CZ)
Bek, Jiří (GLU-S) RID, SAI, ORCID
Zodrow, E. (CA)
Cleal, J. CH. (GB)
Hemsley, A. R. (GB)Source Title Botanical Journal of the Linnean Society. - : Oxford University Press - ISSN 0024-4074
Roč. 142, č. 2 (2003), s. 199-212Number of pages 14 s. Language eng - English Country GB - United Kingdom Keywords Pennsylvanian ; sporangia ; spores Subject RIV DB - Geology ; Mineralogy CEZ AV0Z3013912 - GLU-S UT WOS 000183522500003 EID SCOPUS 0038348384 DOI 10.1046/j.1095-8339.2003.00169.x Annotation 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. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2004
Number of the records: 1