Genuine Cluster Trilobite (Ptychopariida) Fossil on Matrix

Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in the second half of the Lower Cambrian...

Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in the second half of the Lower Cambrian...

The extraordinary fossil Harpes trilobite, measuring eight four millimetres overall, is a wonderfully articulated and fine specimen. Exotic trilobites have influenced some of the most iconic sci-fi films and helped shape the structure of some of the most sophisticated architectural buildings in modern times. The Harpes trilobite, with its unique patterning and streamlined aesthetic, is a species that never fails to intrigue. Its wide, heavily pitted brim, fringe with a curled rim, and elegant taper to the point of both cephalon long spines make it a true enigma. The eyes set back high on the glabella, and the well-defined thoracic segments add to its allure for inquiring minds. With reference once more to the Martian-looking brim, this wide brim with innumerable pitting could have aided the invertebrate lift, much like a hydrofoil. Again, this is the theory at this time. Palaeontologists theorise the possible functions of these anatomical features, either being a wide sieve to filter bottom sediments for food or to detect movement, a sensory organ. Over the 250,000,000-year range of the trilobites, many different morphological adaptions developed from free swimmers to bottom sifters. The expanded and pitted cephalic fringe, a distinct anatomical development seen in harpetids and trinucleids types, including the Harpes trilobite, is a significant area of study in palaeontology. This species, featured in a beautifully designed lucite display case...

Resserops [Perrector] falloti from the West Gondwana Atlasian shales. An exceptional specimen of the finest grade, prepared in relief from the surrounding shale, one of the oldest tr...