Ammonite - Fossilised animal - Arisphinctes helenae (de Riaz) - 16.5 cm - 14.5 cm

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Manuel Quiring
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A natural ammonite specimen Arisphinctes helenae (de Riaz) from Atsimo-Andrefana, Madagascar, dating to the upper Oxfordian stage of the Jurassic (157.3–163.5 Ma), weighing 1024 g and measuring 16.5 × 14.5 × 4 cm, with a plastic stand included.

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Description from the seller

Spectacular ammonites, finely prepared. The specimen has been prepared by one of the parties, preserving the finest details of the specimen. An exceptional preservation specimen and large size for this species. A specimen worthy of a museum.
Ammonite measurements: 165 x 145 x 40 mm
Plastic support included.

Spectacular ammonites, finely prepared. The specimen has been prepared by one of the parties, preserving the finest details of the specimen. An exceptional preservation specimen and large size for this species. A specimen worthy of a museum.
Ammonite measurements: 165 x 145 x 40 mm
Plastic support included.

Details

Number of items
1
Specimen
Ammonite
Scientific name
Arisphinctes helenae (de Riaz)
Country of Origin
Atsimo-Andrefana region, Madagascar
Geological Period
Jurassic - Upper Jurassic, Oxfordian (157.3 – 163.5 million years ago)
Condition
Natural
Weight
1024 g
Height
16.5 cm
Width
14.5 cm
Depth
4 cm
Sold by
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Objects sold
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