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Knightia Alta

Knightia Alta Fish 262mm

£182.00 GBP

A superb single plate Knightia Alta fossil fish measuring 262mm displaying fine detail whilst exhibiting subtle and delicate palettes throughout. Incredibly well preserved in the calcite bearing shale which was once the mud of an exotic prehistoric lagoon. The plate has been created by lifting the shale which is now part of the Rocky Mountain range in Wyoming. Once lifted the shales are split in an attempt to recover these rare occurrences of preserved fish skeletons. This particular fish is complete and displays excellent morphology for study. While also creating a superb and beautiful display, now encased in an oak frame and ready to hang.

The fossil formation was discovered and described by Edward Drinker Cope in 1877 an American palaeontologist and comparative anatomist. In the last quarter of the nineteenth-century fossil collecting was so popular a personal feud between two great palaeontologists grew in momentum, Cope and another palaeontologist Othniel Charles Marsh became intensely competitive in discovering new dinosaur fossils, this led to a race of collecting termed the bone wars.

The eighteen-inch layer is a lower Eocene varve layer, is not fissile laminae and therefore much more difficult to split and work successfully, older in the fossil lakes system containing fish which have been preserved which calcite mineralisation. The mineralisation is caused by absorption of localised mineral elements being absorbed by the process of osmosis. Water coursing through the mud layers at the time of deposition deposited minerals in the tissues of the fish, in this case, its skeletal elements, bones teeth and cartilaginous parts. In this 18 inch layer, this exhibits in a dark calcite skeleton encapsulated in light coloured limestone of the Lagerstätte fossil varved lime muds. The mineral preserves every fine detail of this particular fossil bed, a very rare occurrence indeed.

Genus: Knightia Alta. Order Clupeifomes, Family Clupeidae.
Age: Eocene, 56,000,000 to 33.9,000,000 years.
Origin: Green River Formation, Wyoming, USA.

Knightia plate measurements.
Height: 21.2 cm
Width: 26.2 cm
Thickness: 0.8 cm

Knightia fish measurements.
Length:14.5 cm

Weight: 0.883 g

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✓ Get In Touch

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

 

CONTACT FORM >

✓ 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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For delivery pricing - add a product to the Bag and on the Pop-Out Bag select your country and enter your post/zip code.

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Email us: info@thefossilstore.com