Kettneraspis Prescheri Trilobite 53mm

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Kettneraspis Prescheri Trilobite 53mm

SKU:TFS0069

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Kettneraspis prescheri trilobite 53mm. This Trilobite is a fossilised Devonian period Arthropod, a sea bottom dweller. This genus type is known for its tall eye stalks, long genal spines and frilly cephalon, the head shield. This is a odontopleurid trilobite and they are found in the fossil marine strata globally. Odontopleurids first make their appearance in the Late Cambrian period approximately 540 mya, the last genera vanish from the fossil record by the end of the Frasnian stage 372 mya . The members of Odontopleurids or Odontopleuridae are noted for there exotic spiny appendages and ornamentations of their carapaces, giving them an alien appearance to us today.

Genus: Kettneraspis Prescheri.
Age: Lower Devonian period, approximately 419 to 393 million years.
Origin: Ihandar Formation at Jbel Issoumour, near Taouz, Morocco, North Africa.

Kettneraspis Prescheri measurements.
Height: 2.2 cm
Width: 5.3 cm
Depth: 3.8 cm

Overall measurements.
Height: 3.6 cm
Width: 7.6 cm
Depth: 6.5 cm

Approximate weight: 320g

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Details

Kettneraspis prescheri trilobite 53mm prepared in a fossil preparation laboratory using pneumatic tools and finished with an air abrasive micro sand-blaster. The Trilobite has been prepared to expose the exoskeleton, the fossilised carapace, while retaining and being seated on the original matrix, fossil limestone bed rock.


Using the magnifying glass one can clearly see the exceptional elegant details of this arthropod. Each segment has been cleaned with air abrasive technology to expose the arthropods cephalon, the head, thoracic body segments and finally pygidium, the tail section. The three part lobed body giving the trilobite it's name, run laterally, the axis lobe, which is slightly raised and the right and left pleural lobes which are quite distinct. Posteriorly of the cephalon is the distinguishing single occipital spine, nicknamed the 'stovepipe' due to its stoat appearance. An excellent collector specimen, supplied and shipped securely in a plastic container for transportation, this trilobite can can be removed for a more aesthetic display.


Overall this Kettneraspis prescheri trilobite is fortutuosly placed. The fossilisation process has taken approximately four hundred million years and the specimen has fossilised and mineralised well, the condition of this specimen as with many Devonian trilobites from this part of the world is very good and stable and will be a treasure forever now cleaned and presented in this aesthetically pleasing way.


A brief trilobite history; The order or group of trilobites evolved during the Pre-Cambrian period approximately 550 million years ago, One of the most complex forms of early life, the trilobites reign lasted over 270 million years coming to an end around 250 million years ago in the time of the Permian period. Trilobite genus-types were diverse and globally extensive. The Trilobite was a member of the Proetida Order, Family of the Proetidae. Trilobites were complex animals, having the first compound eyes and segmented bodies which enabled them to enrolled, possibly for a defense posture. The name trilobite refers to the three part body shape, this is longitudinally referenced to the tri-lobed effect of the whole arthropod and not, as often is the case, mistaken for the three main and distinctive constituent parts of the carapace, the cephalon (head), the thorax (body) and the pygidium (tail).


Class Trilobita, Order Odontopleurida described by H.B.Whittington, 1959, Family Odontopleuridae.

Additional Information

SKU TFS0069
Age Devonian
Origin Morocco
Colour Black

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