Walliserops trifurcatus trilobite specimen, cleaned and conserved, the overburden of solid limestone rock removed, the trilobite cleaned with an air-abrasive technique and so in this way of extensive preparation work the once extant arthropod has been brought back from the past in a still life pose. Exhibiting the familiar morphology of the once animate carapace, the distinctive feature of this genus of the trilobite is the extension and three-prong trident fork. The pronged fork-like structure erupting forth from the glabella (head shield) and as yet the appendage has no known function. It may have a sensory, sexual or defensive purpose. Other suggestions for the centrally ridged trident prong have been as an aid sifting through the seabed silt locating food. The thoracic segments are determinable, and the pygidium (tail) is intact.
Condition report: The carapace has been wonderfully exposed using the latest techniques to a very high standard. Through the series of images above, note several thoracic spines have a most attractive caramel colour distally, this is the effect of light layers of matrix and mineral content in the fossil bed. Against the darker carapace, this is a most appealing characteristic of the specimen. The close-up images and our cursor magnification reveal the nuances of the carapace, its undulations, texture and colour tones which have been polished by the air abrasive technique, again most attractive. Overall a superb fossil, superbly conserved.
Trident Walliserops Trifurcatus. The amazing trident, could it be a sensory organ or sexual display appendage, the exact use is not determined as yet. However, the extension and pronged tridentate emanating from the head makes this little arthropod unique in its clade.
Found in the Palaeozoic era, Devonian period 417 to 354 million years ago, excavated from a stratum of limestone of the Emsian stage around 407 to 393 million years ago, the location of the find is Timrhanrhart Formation, Foum Zguid, Morocco, North Africa.
Delivered in an attractive black stained wooden shipping case which can also serve as a display case.