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Psychopyge Termierorum Trilobite 107mm

SKU:TFS0934
£1,392.00

Availability:In stock

Details:

The Psychopyge Termierorum so distinctive with the elongate prong or nose spike which may have evolved for feel and sensory perception, alternately, theorists also debate it may have been a defensive or a sexual dimorphism. Atypical of the genus are two long cephalon spines along with many short thoracic segment spines which run through to a wide pygidium also covered in minute spines and having more long protruding needle spines distally. An excellent and enigmatic fossil trilobite full of character.

Genus: Psychopyge Termierorum.
Age: Palaeozoic era, early Devonian, upper Emsian stage, approximately 408 to 393 millions years.
Origin: Souss- Massa-Drâa, Bou Tiskaouine, Coupe d'Oufatene, Morocco, North Africa.

Psychopyge Termierorum measurement.
Height: 1.5 cm
Length: 10.7 cm
Width: 6.5 cm
Longest Cheek spine: 2.9 cm

Matrix Overall measurement.
Height: 5.2 cm
Depth: 8.0 cm
Width: 9.0 cm

Approximate weight: 0,460 g

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Psychopyge trilobite A spectacular specimen trilobite, discovered and conserved on its natural fossil bedrock, this limestone sediment once formed part of an ancient seabed in the Devonian period. Now exhumed from the fossil site in Morocco.


It is theorised underwater disturbances, shifting ledges after tremors and tsunamis smothered whole groups of marine animals trapped on the seabed, perfectly preserving fossilised arthropods like this Psychopyge. The theory would explain the remarkable preservation of the trilobite; a rapid deposition preserves the carapace from bacterial decay over a prolonged period, the silts covering the trilobite would have caused an anoxic environment preventing much future decay, due to the lack of oxygen or the minimal amount of oxygen to promote any bacterial decay.


The Psychopyge trilobite has been prepared using high profile micro air-abrasive and pneumatic tools to reveal the beauty of the marine arthropod in its naturalistic pose, almost as in life the creature trawls over the seabed as seen in the pictures above.


These excavations into the ancient rock and conservation of the specimens require many hours of highly skilled preparation work in the high tech laboratory by our 21st-century sculptors, Lab technicians painstakingly scribe away the rock from 30 to 60 or on particurlarly spinous speciemns even 100 or more hours. To carefully remove them from the limestone tomb. In the final stages, air abrasive tools are used in conjunction with fine silicates to gently sandblast the smallest bits of the adhered rock from the invertebrates exoskeleton.


Condition report: As you can see the Glabella, head shield spines of this particular Psychopyge elegans trilobite are very long, very fine and therefore delicate. Also, the eye lenses are beautifully intact. The colour and patina of the natural carapace honed to a fine finish by the air abrasive technique and almost in some parts has the translucent quality, particularly the distal spine tips. The carapace exhibits a two-tone colour from dark to light opaque tones. The pygidium of this particular example is superb. One of the finest Psychopyge trilobites to have come out of the fossil bed to our store in recent years. A connoisseurs choice.


Genus type Psychopyge elegant trilobite, Class Trilobita, Order Phacopida, Suborder Phacopina, Family Acastidae, Subfamily Asteropyginae.

Additional Information

SKU TFS0934
Age Devonian
Origin Morocco