| P number: | P521168 |
|---|---|
| Caption: | A fossil specimen of Parakidograptus acuminatus. A fossil graptolite. (Graptolithina.) Port Gower, Grennan Point, Wigtownshire, Scotland. |
| Description: | Parakidograptus acuminatus is a Silurian graptolite from the acuminatus Biozone. British Geological Survey Biostratigraphy Collection number GSE 14931. A scandent biserial form with fine thread-like central virgula that protrudes some distance beyond the stipes. It is thought it may have been used for attachment when juveniles, for strengthening, or to attach to a flotation device or vane. Graptolites lived between the Cambrian and Carboniferous periods though their greatest growth was in the Ordovician. This was followed by near extinction during a late Ordovician glaciation, however they recovered and thrived in the Silurian. Figd.Geology of the Rhins of Galloway sheet 1 and 3, fig 8o. |
| Date taken: | 01/01/2003 |
| Photographer: | Unknown |
| Copyright statement: | NERC |
| Orientation: | Portrait |
| Size: | 317.18 KB; 665 x 1000 pixels; 56 x 85 mm (print at 300 DPI); 176 x 265 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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