| P number: | P521138 |
|---|---|
| Caption: | A fossil specimen of Lasiograptus mucronatus (Hall) var. nobilis Elles and Wood. A fossil graptolite. (Graptolithina.) Low Glenling, 7 miles west by south of Wigtown, Wigtownshire, Scotland. |
| Description: | Lasiograptus mucronatus (Hall) var. nobilis is a graptolite belonging to the Family Lasiograptidae, a family characterized by having scandent biserial rhabdosomes and well-developed clarithia and with thecal or septal spines. British Geological Survey Biostratigraphy Collection number GSE 5507. Graptolites are the remains of intricate colonies some of which accommodated up to 5000 individuals. The earliest graptolites were attached to the sea bed, either to boulders or rooted in soft mud. They became free floating at the beginning of the Ordovician period. The dendroids are the most ancient of the graptolites and were ancestral to the graptoloids. They are usually preserved as compressions in shale however, rarely, three-dimensional specimens have been found and these have been critical in working out their detailed morphology. Figd. G.L.Elles & E.M.R.Wood, Mon. Pal. Soc. 1908, pl. XXXIII, figs. 9b, 9c & p. 324, fig. 213a. |
| Date taken: | Wed Jan 01 00:00:00 GMT 2003 |
| Photographer: | Unknown |
| Copyright statement: | NERC |
| Orientation: | Landscape |
| Size: | 351.20 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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