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- W1997993216 abstract "Petrified stems belonging to the genus Sigillaria have hitherto proved to be extremely rare in the Upper Carboniferous rocks. The present paper contains the first full account of the structure of the Eusigillariæ or ribbed Sigillarias of the Rhytidolepis section. Hitherto our knowledge of the anatomy of such stems has been limited to the account of the bark given by Williamson, and to brief descriptions of specimens, including the vascular cylinder, by Professor Bertrand and Dr. Scott. The material, which forms the basis of the present study, consists of a patrifaction from the Lower Coal Measures of Shore-Littleborough in Lancashire, containing two well-preserved stems, lying side by side. The external surfaces of the ribs of both stems have been exposed by Mr. James Lomax, after much difficulty, and our thanks are due to him for his skill in preparing the sections. The characters of the ribs agree with those of the impressions known as Sigillaria scutellata , Brongn." @default.
- W1997993216 created "2016-06-24" @default.
- W1997993216 date "1908-04-10" @default.
- W1997993216 modified "2023-09-26" @default.
- W1997993216 title "On the structure of Sigillaria scutellata , Brongn., and other Eusigillarian stems, in comparison with those of other palæozoic lycopods" @default.
- W1997993216 doi "https://doi.org/10.1098/rspb.1908.0014" @default.
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