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Harpetida - Harpididae

Harpes Perradiatus Trilobite 91mm

£772.00 GBP

The extraordinary and famous Harpes trilobite measuring 91mm is a fine specimen and naturally presented on the original bedrock. These exotic trilobites have formed some of the most iconic sci-fi films made to date, from space ships to aliens! One of our favourite trilobites for the wings is superb. The attributes of the species are most notable by the wide heavily pitted brim, the fringe with a curled rim which has the appearance of a folded or crimped edge. From anterior brim emanate two stout yet elegantly free spines, long and tapering to a point (these refixed post-excavation work in the Lab), the genal spine and upper carapace similarly featuring the curled rim. The eyes are set back high on the glabella (mid head shield), while the thoracic segments (mid-body), well defined and have a flexure halfway along the thorax just before the posterior of the pygidium (tail section) rolls underneath itself, a partially enrolled body section.

With reference once more to the Martian looking brim, this wide brim with innumerable pitting could have been an aid to give the invertebrate lift, much like a hydrofoil, again this is theory, we may never know the exact purpose. One thing we do know is that this is another firm favourite of our team, a remarkably well preserved and conserved fossil trilobite which would grace most collections.

Over the 250,000,000 year range of the trilobites, many different morphological adaptions developed from free swimmers to bottom sifters. In this type an expanded and pitted cephalic (cephalon - headshield), fringe, is a distinct anatomical development, harpetids and trinucleids types have this. The function of the wide dished fringe of the Harpes is still a matter of conjecture.

Palaeontologists theorise the possible functions of these anatomical features, either being a wide sieve to filter bottom sediments for food or even possibly for detecting movement, a sensory organ, like a sonar dish or large receptor sounding dish, they function much like the large dishes on earth listening out into space.

Genus: Order Harpetida, Family Harpididae, Harpes perradiatus Trilobite.
Age: Palaeozoic, Lower Devonian (Pragian), 354 - 417,000,000 years.
Origin: Tazoulait formation, Jdel Issoumour, Nr Alnif, Morocco, North Africa.

Harpes perradiatus Trilobite measurement.
Length: 4.7 cm
Width: 3 cm
Depth: 1.5 cm

Overall matrix measurement.
Length: 9.1 cm
Width: 7.8 cm
Depth: 4 cm

Weight: 1.000 Kg

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If you need assistance regarding this product, we are here to help. Simply note the product 'TITLE + SKU' number within you enquiry.

Call us: +44 [0] 151 342 1151
Email us: info@thefossilstore.com

 

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✓ Free UK Delivery

Free standard UK delivery - Recorded/Signed-for

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

✓ Worldwide Delivery

This product is available for worldwide delivery.

✓ Authenticity Guaranteed

A certificate of authenticity is included with this product.

✓ Specify Delivery Date

For specific delivery dates please email info@thefossilstore.com or you can use our Contact Form.

Large items require special courier services - please allow time for such deliveries whilst we guarantee a more secure delivery of your order.

Once confirmed you will receive updates from one of our couriers for a door to door service - assigning your order to DPD Precise, Simon Haul Specialists or an alternate courier of our choosing.

Next Day Delivery is subject to availability, determined by the time of your order and product selection.

Please note - UK small orders arrive 3 - 5 business days.
UK large orders arrive 5 - 12 business days.

For Returns please see our Returns Policy.

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