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Retiolitid graptolite, Pseudoplegmatograptus, Llandovery, Poland
TqB posted a topic in Member Collections
I was browsing some photos of monograptids for sale and noticed in the corner of one of them a ghostly patch with some faintly marked bristles . Thinking it was probably a retiolitid , I bought it and it arrived yesterday. So it turned out to be which was pleasing as they're very interesting and beautiful and I haven't found any in the field yet. After wading through a fair bit of literature, I think it's probably Pseudoplegmatograptus obesus (Lapworth 1877), or something close (graptolites being frustratingly impossible to ID for non-specialists). (Mrs. @Spongy Joe ?) From Z- 14 replies
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- llandovery
- poland
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One of a number of spiral monograptids from this period and a zone species, these have all been referred to Monograptus at various times as well as separate genera based on rhabdosome form which may not be of significant importance. It is bisected by an unidentified straight Monograptus. Reference for ID (as Monograptus spiralis): Elles & Wood 1901-1918, Monograph on British Graptolites, Pal. Soc. Monograph 33. (Plate XLVIII, fig. 7). Now generally referred to Oktavites Levina, 1928, e.g. in J. A. Zalasiewicz, L. Taylor et al 2009, Graptolites in Br
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- oktavites
- monograptus
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