DIACALYMENE Trilobite Fossil Nodule Positive & Negative Upper Ordovician Ktaoua Group Morocco Authentic Specimen
£ 42.00
This listing features a finely preserved trilobite fossil of the genus
Diacalymene, preserved as a positive and negative split nodule from the Ktaoua Group, located in the Anti-Atlas Region of Morocco. This authentic fossil dates to the Upper Ordovician Period and comes with a Certificate of Authenticity. The photo displays the actual specimen you will receive.Diacalymene trilobites are well-known from Upper Ordovician marine deposits in North Africa and represent a genus within the:
• Order: Phacopida
• Family: CalymenidaeThe Ktaoua Group consists of siliciclastic marine sediments, deposited in a shallow epicontinental sea during the Katian Stage of the Upper Ordovician (~450 million years ago). The nodular preservation is a result of early diagenetic concretion formation, which encased and preserved the trilobite within fine marine silts and muds. MORPHOLOGICAL FEATURES:
• Elongated, semi-oval cephalon (head)
• Thorax with well-defined axial lobes and pleurae (segments)
• Rounded pygidium (tail) with detailed segmentation
• Fossil preserved in both the convex (positive) and concave (negative) halves of the noduleDiacalymene is appreciated for its symmetrical body plan, high-quality preservation, and complete three-part segmentation, making it a great teaching and display specimen. SPECIMEN DETAILS:
• Genus: Diacalymene (likely Diacalymene ouzregui)
• Fossil Type: Trilobite (positive and negative halves in nodule)
• Geological Formation: Ktaoua Group
• Geological Age: Upper Ordovician (Katian Stage)
• Location: Anti-Atlas Region, Morocco
• Depositional Environment: Shallow marine siliciclastic basin
• Order: Phacopida
• Family: CalymenidaeThis fossil is ideal for collectors, students, and educators looking to own a complete and naturally preserved trilobite fossil from a globally renowned fossil site.Scale rule squares/cube = 1cm. Please refer to the image for full sizing.All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
Diacalymene, preserved as a positive and negative split nodule from the Ktaoua Group, located in the Anti-Atlas Region of Morocco. This authentic fossil dates to the Upper Ordovician Period and comes with a Certificate of Authenticity. The photo displays the actual specimen you will receive.Diacalymene trilobites are well-known from Upper Ordovician marine deposits in North Africa and represent a genus within the:
• Order: Phacopida
• Family: CalymenidaeThe Ktaoua Group consists of siliciclastic marine sediments, deposited in a shallow epicontinental sea during the Katian Stage of the Upper Ordovician (~450 million years ago). The nodular preservation is a result of early diagenetic concretion formation, which encased and preserved the trilobite within fine marine silts and muds. MORPHOLOGICAL FEATURES:
• Elongated, semi-oval cephalon (head)
• Thorax with well-defined axial lobes and pleurae (segments)
• Rounded pygidium (tail) with detailed segmentation
• Fossil preserved in both the convex (positive) and concave (negative) halves of the noduleDiacalymene is appreciated for its symmetrical body plan, high-quality preservation, and complete three-part segmentation, making it a great teaching and display specimen. SPECIMEN DETAILS:
• Genus: Diacalymene (likely Diacalymene ouzregui)
• Fossil Type: Trilobite (positive and negative halves in nodule)
• Geological Formation: Ktaoua Group
• Geological Age: Upper Ordovician (Katian Stage)
• Location: Anti-Atlas Region, Morocco
• Depositional Environment: Shallow marine siliciclastic basin
• Order: Phacopida
• Family: CalymenidaeThis fossil is ideal for collectors, students, and educators looking to own a complete and naturally preserved trilobite fossil from a globally renowned fossil site.Scale rule squares/cube = 1cm. Please refer to the image for full sizing.All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
