Ultrastructural observations on some dendroid and graptoloid graptolites and on Mastigograptus

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dc.contributor.author Wade, Stephen
dc.contributor.author Kozlowska, Anna
dc.contributor.author Loydell, David
dc.contributor.author Bates, Denis E. B.
dc.contributor.author Urbanek, Adam
dc.date.accessioned 2011-06-17T10:48:10Z
dc.date.available 2011-06-17T10:48:10Z
dc.date.issued 2011-06-17
dc.identifier.citation Wade , S , Kozlowska , A , Loydell , D , Bates , D E B & Urbanek , A 2011 , ' Ultrastructural observations on some dendroid and graptoloid graptolites and on Mastigograptus ' Bulletin of Geosciences , vol 84 , no. 1 , pp. 21-26 . en
dc.identifier.issn 1802-8225
dc.identifier.other PURE: 167784
dc.identifier.other dspace: 2160/7082
dc.identifier.uri http://hdl.handle.net/2160/7082
dc.description Bates, D. E. B., Kozlowska, A., Loydell, D., Urbanek, A., Wade, S. (2009). Ultrastructural observations on some dendroid and graptoloid graptolites and on Mastigograptus. Bulletin of Geosciences, 84, (1), 21-26. en
dc.description.abstract The ultrastructure of the dendroid genera Acanthograptus, Dendrograptus, Desmograptus, Ptilograptus and Dictyonena, the genus Mastigograptus, and the graptoloids Monograptus, Cyrtograptus, Neogothograptus, Paraplectograptus and Sokolovograptus is described. The cortical fibrils of most of the taxa bear a clockwise spiral ornament. There is a striking similarity between the cortical fabric of Dictyonema sp. and the extracellular plies of collagen recognized in extant metazoans. Cortical fibrils may be considered a collagen-like material and the matrix may be compared with a polysaccharide - protein complex. The matrix in Dictyonema and Ptilograptus is formed of regularly spaced interconnecting rods. However, the interconnecting rods are a feature external to the cortical fibrils, and therefore their spacing constitutes only an indirect evidence for the fibrils being formed of a collagen-like material. en
dc.format.extent 6 en
dc.language.iso eng
dc.relation.ispartof Bulletin of Geosciences en
dc.title Ultrastructural observations on some dendroid and graptoloid graptolites and on Mastigograptus en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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