4对配套的剖面菊石 коллекция - 贝壳化石 - Cleoniceras sp., - 25.5 cm - 20.3 cm (没有保留价)





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这组天然标本包含8块切面并经抛光的Cleoniceras sp.菊石半体,组成4对相配标本,产自马达加斯加下白垩纪。
卖家的描述
Collection of 4 Matched Pairs of Sectioned Cleoniceras Ammonites – 8 Polished Fossil Halves – Cretaceous – Madagascar
An attractive collection of four Cleoniceras ammonites from Madagascar, carefully sectioned and polished to reveal their fascinating internal structures. The collection consists of four matching pairs, for a total of eight individual fossil halves, neatly arranged in a divided display box.
Each ammonite has been cut into two complementary sections, exposing the characteristic spiral geometry and intricate chamber divisions of these ancient marine cephalopods.
The polished surfaces display a striking deep black to dark brown coloration, beautifully contrasted by delicate pale mineralized lines outlining the individual chambers. Several sections reveal attractive crystalline formations within the chambers, with sparkling mineral inclusions ranging from silvery grey and creamy white to warm golden and rusty orange tones.
Particularly interesting is the variation in internal preservation among the four specimens. Some ammonites exhibit numerous crystal-lined cavities, while others display darker, more compact mineralization with finely defined chamber boundaries. These differences create a visually engaging collection despite the specimens belonging to the same genus.
The central spirals are clearly visible, revealing the progressively expanding chambers that once formed the internal structure of the shells. The polished finish enhances the contrast between the dark fossil material and the lighter mineral deposits, emphasizing their remarkable natural geometry.
The reverse sides retain portions of the original external shell structure, offering an additional perspective on the fossils and their preservation.
The four matching pairs are presented in the original compartmentalized cardboard box with protective foam lining, allowing each pair to be stored and displayed separately.
Geological Period: Cretaceous
Origin: Madagascar
Genus: Cleoniceras
Number of Specimens: 4 complete sectioned ammonites, 8 individual halves in total
Dimensions:
Largest half: 8 × 6 cm
Smallest half: 7.2 × 5.6 × 0.8 cm
Maximum thickness: 1 cm
Display box included.
An elegant and varied collection of polished Cretaceous ammonites, combining the scientific interest of prehistoric marine life with the decorative beauty of natural mineralization. Particularly suitable for fossil collectors, educational displays and cabinets of curiosities.
卖家故事
Collection of 4 Matched Pairs of Sectioned Cleoniceras Ammonites – 8 Polished Fossil Halves – Cretaceous – Madagascar
An attractive collection of four Cleoniceras ammonites from Madagascar, carefully sectioned and polished to reveal their fascinating internal structures. The collection consists of four matching pairs, for a total of eight individual fossil halves, neatly arranged in a divided display box.
Each ammonite has been cut into two complementary sections, exposing the characteristic spiral geometry and intricate chamber divisions of these ancient marine cephalopods.
The polished surfaces display a striking deep black to dark brown coloration, beautifully contrasted by delicate pale mineralized lines outlining the individual chambers. Several sections reveal attractive crystalline formations within the chambers, with sparkling mineral inclusions ranging from silvery grey and creamy white to warm golden and rusty orange tones.
Particularly interesting is the variation in internal preservation among the four specimens. Some ammonites exhibit numerous crystal-lined cavities, while others display darker, more compact mineralization with finely defined chamber boundaries. These differences create a visually engaging collection despite the specimens belonging to the same genus.
The central spirals are clearly visible, revealing the progressively expanding chambers that once formed the internal structure of the shells. The polished finish enhances the contrast between the dark fossil material and the lighter mineral deposits, emphasizing their remarkable natural geometry.
The reverse sides retain portions of the original external shell structure, offering an additional perspective on the fossils and their preservation.
The four matching pairs are presented in the original compartmentalized cardboard box with protective foam lining, allowing each pair to be stored and displayed separately.
Geological Period: Cretaceous
Origin: Madagascar
Genus: Cleoniceras
Number of Specimens: 4 complete sectioned ammonites, 8 individual halves in total
Dimensions:
Largest half: 8 × 6 cm
Smallest half: 7.2 × 5.6 × 0.8 cm
Maximum thickness: 1 cm
Display box included.
An elegant and varied collection of polished Cretaceous ammonites, combining the scientific interest of prehistoric marine life with the decorative beauty of natural mineralization. Particularly suitable for fossil collectors, educational displays and cabinets of curiosities.

