RARE Arieticeras bertrandi Fossil Ammonite Aalenian Jurassic Lombardi Italy Genuine Specimen
£ 24.00
RARE ARIETICERAS BERTRANDI FOSSIL FROM LOMBARDI, ITALYThis listing features a rare fossil ammonite, Arieticeras bertrandi, originating
from the Aalenian stage of the Middle Jurassic, discovered in Lombardi, Italy. Known for its elegant ribbing and well-preserved shell structure, this ammonite is a remarkable example of Jurassic marine life and an outstanding addition to any fossil collection. Each specimen is carefully selected for quality and authenticity, and it comes with a Certificate of Authenticity. GEOLOGICAL CONTEXTThe Aalenian stage (approximately 174–170 million years ago) marks the beginning of the Middle Jurassic. During this period, vast shallow seas spread across much of Europe, creating environments where ammonites thrived in abundance and diversity. The Lombardi region of Italy preserves exceptional fossiliferous deposits from this age, capturing a wide variety of marine organisms. Ammonites such as Arieticeras bertrandi are particularly valuable to paleontologists as they act as index fossils, allowing for accurate dating and correlation of Aalenian strata. CLASSIFICATION AND TAXONOMYArieticeras bertrandi belongs to the class Cephalopoda, order Ammonitida, and family Arieticeratidae. The genus Arieticeras is well known for its distinctive shell forms and is widely used in Jurassic ammonite zonation. Its unique ribbing patterns and shell morphology make this species instantly recognisable and scientifically significant. Fossils of Arieticeras are not commonly available on the market, adding rarity and desirability for collectors. MORPHOLOGICAL FEATURESThis ammonite is characterised by its evolute shell, where all the whorls are visible from the side, creating an open and ornate appearance. The ribs are typically bold and evenly spaced, curving across the flanks and sometimes branching towards the venter. These structural features not only provided buoyancy and strength to the living animal but also give the fossil its distinctive aesthetic appeal today. The clear definition of the ribbing and coiling in this specimen enhances its scientific and display value. SCIENTIFIC AND COLLECTOR IMPORTANCEThe presence of Arieticeras bertrandi is associated with key zones of the Aalenian stage, where it plays a vital role in biostratigraphic correlation. For paleontologists, it helps reconstruct the distribution and evolution of Jurassic ammonites across Europe. For collectors, its rarity and beauty make it a standout fossil from Italy. Few ammonites combine scientific utility and visual appeal as elegantly as this species. PROVENANCE AND DISPLAY QUALITYDiscovered in Lombardi, Italy, this fossil comes from a region renowned for its Middle Jurassic deposits. The ammonite has been carefully prepared to reveal its natural ribbing and shell morphology. The photographs show the exact specimen you will receive, with a 1 cm scale cube included for reference. Its size, preservation, and provenance make it suitable for display in a private collection, educational setting, or museum context. AUTHENTICITY GUARANTEEDAll of our fossils are 100% genuine specimens and are accompanied by a Certificate of Authenticity. This rare Arieticeras bertrandi fossil ammonite from the Aalenian stage of Lombardi, Italy, offers both scientific value and natural beauty, making it an exceptional acquisition for any serious fossil collector.
from the Aalenian stage of the Middle Jurassic, discovered in Lombardi, Italy. Known for its elegant ribbing and well-preserved shell structure, this ammonite is a remarkable example of Jurassic marine life and an outstanding addition to any fossil collection. Each specimen is carefully selected for quality and authenticity, and it comes with a Certificate of Authenticity. GEOLOGICAL CONTEXTThe Aalenian stage (approximately 174–170 million years ago) marks the beginning of the Middle Jurassic. During this period, vast shallow seas spread across much of Europe, creating environments where ammonites thrived in abundance and diversity. The Lombardi region of Italy preserves exceptional fossiliferous deposits from this age, capturing a wide variety of marine organisms. Ammonites such as Arieticeras bertrandi are particularly valuable to paleontologists as they act as index fossils, allowing for accurate dating and correlation of Aalenian strata. CLASSIFICATION AND TAXONOMYArieticeras bertrandi belongs to the class Cephalopoda, order Ammonitida, and family Arieticeratidae. The genus Arieticeras is well known for its distinctive shell forms and is widely used in Jurassic ammonite zonation. Its unique ribbing patterns and shell morphology make this species instantly recognisable and scientifically significant. Fossils of Arieticeras are not commonly available on the market, adding rarity and desirability for collectors. MORPHOLOGICAL FEATURESThis ammonite is characterised by its evolute shell, where all the whorls are visible from the side, creating an open and ornate appearance. The ribs are typically bold and evenly spaced, curving across the flanks and sometimes branching towards the venter. These structural features not only provided buoyancy and strength to the living animal but also give the fossil its distinctive aesthetic appeal today. The clear definition of the ribbing and coiling in this specimen enhances its scientific and display value. SCIENTIFIC AND COLLECTOR IMPORTANCEThe presence of Arieticeras bertrandi is associated with key zones of the Aalenian stage, where it plays a vital role in biostratigraphic correlation. For paleontologists, it helps reconstruct the distribution and evolution of Jurassic ammonites across Europe. For collectors, its rarity and beauty make it a standout fossil from Italy. Few ammonites combine scientific utility and visual appeal as elegantly as this species. PROVENANCE AND DISPLAY QUALITYDiscovered in Lombardi, Italy, this fossil comes from a region renowned for its Middle Jurassic deposits. The ammonite has been carefully prepared to reveal its natural ribbing and shell morphology. The photographs show the exact specimen you will receive, with a 1 cm scale cube included for reference. Its size, preservation, and provenance make it suitable for display in a private collection, educational setting, or museum context. AUTHENTICITY GUARANTEEDAll of our fossils are 100% genuine specimens and are accompanied by a Certificate of Authenticity. This rare Arieticeras bertrandi fossil ammonite from the Aalenian stage of Lombardi, Italy, offers both scientific value and natural beauty, making it an exceptional acquisition for any serious fossil collector.
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