Spectacular graptolites with extraordinary...

Spectacular plaque with a specimen of the graptolite Clononograptus rigidus. There are also other Clonograptus specimens partially preserved and other types of graptolites. Plate with a very well fossilized Clononograptus. The Clononograptus is spectacular, very complete, and shows extraordinary preservation. Specimens of this quality are extremely rare. The contrast between the fossils and the matrix is striking. The extraordinary preservation of the fossils allows observing with great detail the delicate structures of the different graptolites. The preparation of the specimen was very meticulous, preserving the finest details. A specimen worthy of a museum. Approximate dimensions of Clonograptus: 5 x 5 cm Plate dimensions: 802 g; 22 x 17 x 1 cm Plastic stand included. Graptolites are an extinct class of the phylum Hemichordata. They are colonial animals that emerged in the late Cambrian and became extinct at the beginning of the Carboniferous. Graptolites were small animals living in groups or colonies. Some colonies formed branched shapes. The different types of graptolite colonies had branches with different shapes. They can be straight, curved, or even spiral. The deposits of the Fezouata Formation, near the Moroccan city of Zagora, are providing a rich and varied fossil record with extraordinary preservation, to the point that soft parts or soft-bodied animals are frequently preserved. This type of preservation is similar, though later in time, to that of the famous Burgess Shale (Canada). These are fossils dating from between 480 and 472 million years ago. Back then Morocco was an ocean and located near the South Pole.

Estimación:€150

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