Camerate crinoid
Référence de la vidéo 11926079
| Scyphocrinites elegans Zenker 1833. This float bearing camerate crinoid has a wide geographical distribution during the Upper Silurian and Lower Devonian. Scyphocrinites was a cosmopolitan crinoid with examples found of similar ages in the United States, Africa, Europe, and Asia. It has an intricate calyx with many stellate plates. A bulbous structure called Camarocrinus has been associated with these crinoids, and is the reason for its widespread existence in the Upper Silurian Lower Devonian. This structure is believed to be a float, with the crinoid leading a pelagic existence, allowing it to cover much territory. They are sometimes found in mass associations. This is a fine example of this variety of Camerate crinoid to be found in the late Silurian deposits of Morocco, with much detail to the calyx, and many fine pinnules present | |
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| Crédit : | Science Photo Library / Stammers, Sinclair |
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| Durée : | 01:42 Minutes |
| Aspect ratio : | 16/9 |
| Restrictions : | - |
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