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Acadoparadoxides Briareus

Paradoxides Acadoparadoxides 385mm

£3,992.00 GBP

Paradoxides acadoparadoxides trilobites tallest measurement is 385mm. Mother nature has played the greatest part in this unique conservation of the large alien-looking bug. As many collectors aptly use this term when referring to the segmented thoracic segment and globular cephalon (head), these plus the pygidium (tail), spines do make for remarkable imagery now that the prehistoric marine invertebrate seems to have frozen on the limestone, which was once the seabed.

The trilobite surmounted on a fine pair of custom bronze mounts, part of our classic range of specimens, set into bronze clasps, the specimen can be easily lifted off for study and shipping. The whole set onto the bronzed plinth bases making for a wonderful display. The specimen is absolutely unique, every fossil is unique of course, the quality of preservation is of an apex collection fossil trilobite specimen. The preservation is great, the trilobite plate is formed by carefully splitting the nodule, no preparation or restoration has been necessary apart from a single join on one plate, this is very minor work, it is quite a normal happenstance these split plates have much more reaffixing work carried out at excavation when most damage can take place and during post-excavation work on specimens, in this instance that is not the case. A wonderful and natural specimen in such condition elevates the trilobite to the top echelons in trilobite collecting from this location and time period.

The attractive colour is from the fossil bed. Heavy minerals cause the burnt umber colouration a byproduct of the heavy concentrations of iron in the region of the fossil bed and typical of this formation. This transpires as a dusty coating of fine limestone. Giving the fossil a most recognisable signature. The dark bronze colour of the mounts complements the fossils.

The process of fossilisation is best achieved in an anoxic environment when sufficiently buried without oxygen bacteria cannot quickly establish on the once-living organisms and so this enables the successful and very rare event of fossilisation. The beautiful palette colours caused by mineral absorption into the invertebrates carapaces (exoskeleton) and surrounding matrix (fossil bedrock), this created natural earth colours which are mainly due to iron oxides being present in the sediments. The sublime and natural placement of the extinct ocean-dwelling arthropods is aesthetically pleasing with thoracic furrows and appendages creating dramatic shadowy forgotten worlds.

A very brief pre-Cambrian and Cambrian trilobite history. The class of trilobites evolved during the Pre-Cambrian period this time period began around five hundred and forty million years ago, the phylum Arthropoda of that time were the most complex forms of animal life in the oceans, the trilobites reign in the oceans of the world lasted over 270,000,000 years finally coming to an end around two hundred and fifty million years ago during the Permian great death, a cataclysmic extinction event with saw the demise of almost 90% of life on the planet. Before this extinction-level event trilobites were diverse and ranged globally. They were complex animals, having the first compound eyes and segmented bodies enabling them to escape danger by enrolling and aiding fast movement and evolution of seabed dwellers as well as some free-swimming varieties.

Genus: Paradoxides acadoparadoxides briareus (Geyer, 1993)
Age: Palaeozoic era, Mid Cambrian, 540,000,000 - 500,000,000 years ago.
Origin: Jbel Wawrmast Formation, of Zagora region, the Draa Valley, near Alnifi, Sidi Abdullah ben el Hadj village, Morocco, North Africa.

Overall measurements.
Height: 38.5 cm
Width: 34.0 cm
Depth: 10.0 cm

Paradoxides plate 1 measurements.
Height: 31.0 cm
Width: 34.0 cm
Depth: 4.0 cm

Paradoxides plate 2 measurements.
Length: 27.0 cm
Width: 21.5 cm
Depth: 4.0 cm

Overall weight: 14.983 Kg

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All UK orders include free delivery, excluding Ireland, Scotland and the Highlands.

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A certificate of authenticity is included with all our products.

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