Orthoceras Fossil Plate
Fossil Specimen / Decorative Rock

Orthoceras Fossil Plate

This item is a polished fossil plate, primarily gray and black in color, densely embedded with multiple elongated, tapering fossilized specimens of Orthoceras. The overall shape of the plate is organic and irregular, suggesting it has been cut from a larger rock formation. The surface is highly polished, which accentuates the contrast between the dark, distinct outlines of the Orthoceras fossils and the lighter, mottled gray matrix stone. The fossils themselves are black or very dark gray, exhibiting a smooth, slightly reflective surface, possibly due to mineralization and the polishing process. They vary in size, with some being quite slender and short, while others are longer and more robust, with one particularly large specimen visible towards the left side of the plate. The arrangement of the fossils appears somewhat chaotic yet aesthetically pleasing, with many oriented diagonally and overlapping in places. The matrix material has a fine-grained texture, featuring small, lighter specks that add visual interest. While the precise dimensions are not provided, the plate appears to be a substantial decorative piece. There are no obvious signs of significant damage such as large cracks or chips, and the polishing seems to be uniformly applied, indicating good craftsmanship. Given the nature of these fossils, the estimated age would be from the Middle Ordovician to the Late Triassic periods. This piece serves as both a scientific specimen and a unique decorative object.

Estimated Value

$350-550

Basic Information

Category

Fossil Specimen / Decorative Rock

Appraised On

November 29, 2025

Estimated Value

$350-550

Item Description

This item is a polished fossil plate, primarily gray and black in color, densely embedded with multiple elongated, tapering fossilized specimens of Orthoceras. The overall shape of the plate is organic and irregular, suggesting it has been cut from a larger rock formation. The surface is highly polished, which accentuates the contrast between the dark, distinct outlines of the Orthoceras fossils and the lighter, mottled gray matrix stone. The fossils themselves are black or very dark gray, exhibiting a smooth, slightly reflective surface, possibly due to mineralization and the polishing process. They vary in size, with some being quite slender and short, while others are longer and more robust, with one particularly large specimen visible towards the left side of the plate. The arrangement of the fossils appears somewhat chaotic yet aesthetically pleasing, with many oriented diagonally and overlapping in places. The matrix material has a fine-grained texture, featuring small, lighter specks that add visual interest. While the precise dimensions are not provided, the plate appears to be a substantial decorative piece. There are no obvious signs of significant damage such as large cracks or chips, and the polishing seems to be uniformly applied, indicating good craftsmanship. Given the nature of these fossils, the estimated age would be from the Middle Ordovician to the Late Triassic periods. This piece serves as both a scientific specimen and a unique decorative object.

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