Impressive sea urchin, 49 mm!!! - Exceptional size in this scarce species!!! - Fossilised animal - Gymnodiadema hessi (SMITH, 2011) - 49 mm - 45 mm (No Reserve Price)

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Manuel Quiring
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Estimate  € 160 - € 190
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Scientific name Gymnodiadema hessi (SMITH, 2011); Specimen: impressive sea urchin measuring 49 mm; Geological period: Jurassic, Bajocian (168.3–170 million years ago); Origin: Guerssif (Morocco); Condition: Natural.

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Description from the seller

Impressive, large fossil sea urchin. Gymnodiadema hessi is an especially rare sea urchin. The species has a very thin and delicate shell, which greatly complicates its preservation. Preparing the specimen was very laborious, preserving even the finest details of the shell. The specimen is slightly deformed. The deposit where it was found is characterized by very hard black limestone, which greatly hindered preparation. The specimen is exceptionally well-preserved. Specimens of this size and quality are very rare. A museum-worthy specimen.

Impressive, large fossil sea urchin. Gymnodiadema hessi is an especially rare sea urchin. The species has a very thin and delicate shell, which greatly complicates its preservation. Preparing the specimen was very laborious, preserving even the finest details of the shell. The specimen is slightly deformed. The deposit where it was found is characterized by very hard black limestone, which greatly hindered preparation. The specimen is exceptionally well-preserved. Specimens of this size and quality are very rare. A museum-worthy specimen.

Details

Number of items
1
Specimen
Impressive sea urchin, 49 mm!!! - Exceptional size in this scarce species!!!
Scientific name
Gymnodiadema hessi (SMITH, 2011)
Country of Origin
Guerssif (Morocco)
Geological Period
Jurassic - Middle Jurassic, Bajocian (168.3-170.3 million years ago)
Condition
Natural
Weight
147 g
Height
49 mm
Width
45 mm
Depth
45 mm
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Objects sold
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