| P number: | P549524 |
|---|---|
| Caption: | Dibunophyllum bipartitum, a fossil coral. |
| Description: | Dibunophyllum is a solitary rugose coral that lived about 290-320 million years ago, during Carboniferous times. It has a conical, calcareous skeleton (corallum), which is built up of a stack of corallite floors (tabulae) and, when viewed from the top, can be seen to be subdivided by plates-radiating septa and concentric dissepiments. Dibunophyllum bipartitum lived during the Carboniferous times, about 320 million years ago. It has an axial structure usually comprising about 30% of the width of the corallum. The major septa are arranged in groups of four. Fossils are often found in shallow water limestones in Britain. Rugose corals may be either solitary or colonial animals. The coral is constructed of a calcareous skeleton subdivided by numerous plates called septa and dissepiments. The soft bodied animal (polyp) sat in a hollow in the top surface of the corallum (called a calice). They first evolved during the Ordovician and became extinct at the mass extinction event at the end of the Permian. |
| Photographer: | Unknown |
| Copyright statement: | NERC |
| Orientation: | Portrait |
| Size: | 494.98 KB; 973 x 1000 pixels; 82 x 85 mm (print at 300 DPI); 257 x 265 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Best of BGS Images/ Fossils |
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