编号 102796737

化石海绵 - 部分与对照件 - 矩阵化石 - 12 cm - 10.5 cm (没有保留价)
编号 102796737

化石海绵 - 部分与对照件 - 矩阵化石 - 12 cm - 10.5 cm (没有保留价)
Triassic Marine Sponge Fossil in Split Nodule – Old Collection
A genuine fossil marine sponge preserved within a natural split nodule from the Triassic period.
The sponge itself measures 8 × 2.5 cm and is clearly visible across both halves of the nodule, showing its elongated form and internal structure. The preservation is subtle but well-defined, offering an authentic glimpse into ancient marine life.
One half of the nodule has been consolidated with adhesive, as visible in the photos. This intervention was carried out to stabilize the specimen and preserve its integrity over time, a common practice for fragile fossils.
The exterior of the nodule remains largely natural, with its original sedimentary texture intact, while the interior reveals the fossil in situ, providing a classic and scientifically interesting presentation.
From an old collection, this piece carries both geological and historical value.
A genuine and honest specimen, ideal for collectors who appreciate natural preservation and authentic fossil material.
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