Diacalymene Trilobite Upper Ordovician Morocco Nodule Positive & Negative Halves – Ktaoua Group

Description

Fossil Identification

This specimen is identified as a Diacalymene trilobite fossil preserved in a nodule with positive and negative halves. It comes from the Ktaoua Group of the Upper Ordovician and is associated with the Anti-Atlas Region of Morocco. The paired positive and negative pieces provide an appealing way to examine the fossil-bearing surface and its corresponding counterpart, making this an engaging addition to a fossil collection, geological display or educational specimen set.

Geological Context

The Upper Ordovician represents the later part of the Ordovician Period, an important interval in the history of marine life. Trilobites were extinct marine arthropods with segmented bodies and a durable external exoskeleton that could be preserved in sedimentary rock. Diacalymene is a trilobite identification associated with Ordovician fossil material. The stated Ktaoua Group and Anti-Atlas Region locality provide useful geological context for this Moroccan specimen without taking away from its natural character as a genuine fossil.

Positive and Negative Nodule Halves

A nodule fossil presented with positive and negative halves offers two complementary surfaces from the same prepared piece. The positive half represents the raised fossil-bearing relief, while the negative half preserves the corresponding impression. Together, the halves can help collectors appreciate how fossil remains and impressions may occur within sedimentary material. The natural nodule form also gives the specimen an authentic geological appearance suited to cabinet display, study and collection cataloguing.

Collector and Display Interest

Diacalymene trilobite material is an attractive choice for collectors interested in Ordovician fossils, trilobite identification, Moroccan geology and the fossil heritage of the Anti-Atlas Region. Its combination of a named trilobite identification, Upper Ordovician age, Ktaoua Group association and positive-and-negative nodule presentation makes it particularly suitable for a focused trilobite collection or a broader geological display. It may also be useful as a conversation piece when discussing fossil preservation, counterpart impressions and the study of extinct marine arthropods.

Specimen Information

Identification: Diacalymene trilobite

Geological association: Ktaoua Group, Upper Ordovician Region: Anti-Atlas Region, Morocco Format: Nodule fossil with positive and negative halves

Full sizing is shown in the photographs.

The photograph shows the actual specimen you will receive.

Authenticity and Certificate

This Fossil is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.

The certificate wording is supplied with the specimen as stated above. This listing is intended for collectors, fossil enthusiasts, geology students, educators and anyone interested in authentic trilobite material from Morocco. The positive and negative halves offer an informative presentation of the fossil and its counterpart, while the documented identification and geological association make it easy to place within a collection focused on Ordovician life and geological history.