1.6" Fossil Trilobite (Declivolithus) With Pos/Neg - Morocco

This is a very inflated and colorful specimen of the Trinucleid trilobite Declivolithus from Ouled Slimane, Morocco. It has a natural orange preservation due to the oxidiation of iron pyrite which had replaced the fossil. It is 1.6" wide and 1.5" long. Both the positive and negative impression of the trilobite are included. There is one repaired crack through both sides of the rock.

This trilobite has really dramatic cephalic pits along its "head shield". The exact purpose of these pits is unknown, but they could have had sensory purposes or aided in filter feeding.

An Upper Ordovician (Katian) Trilobite Fauna From the Lower Ktaoua Formation, Morocco

About Trilobites

Trilobites are an extinct class of marine arthropods that thrived for nearly 270 million years, from the early Cambrian to the end of the Permian period (around 521 to 252 million years ago). They are one of the most successful and diverse groups in the history of life, with over 25,000 described species spanning a wide range of sizes, shapes, and ecological niches. Known for their distinctive, segmented exoskeletons, trilobites provide invaluable insights into the evolutionary history of arthropods and the dynamics of ancient marine ecosystems.

SOLD
DETAILS
SPECIES
Declivolithus (Nankinolithus) titan
LOCATION
Ouled Slimane, Zagora area, Morocco
FORMATION
Lower Ktaoua Formation
SIZE
1.6" wide, 1.5" long
SUB CATEGORY
ITEM
#128781
GUARANTEE
We guarantee the authenticity of all of our specimens.