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Diplomystus Dentatus

Framed Diplomystus Dentatus 700mm

£1,792.00 GBP RRP £1,892.00 GBP

Our attractive Diplomystus Dentatus fish frame measuring 700mm, an ancestor of the herring family, a very finely boned fish which is extremely difficult to prepare from the Lagerstätte varve layer of the Eocene limestones of the Green River formation 18-inch layer. These predator fish of an ancient freshwater lagoon have been discovered with other prey fish in its stomach contents, Knightia Alta, Knightia Eocaena and Priscacara Serrata all other inhabitants of the prehistoric fossil lakes and have occasionally found to the latter fishes stuck in its gullet. These so-called aspiration deaths are rare, difficult to interrupt as to the actual cause of the death of the predatory fish. The two main theories as to why aspiration fish deaths are found in the fossil deposits are, firstly the predator fish could not swallow the prey which became lodged in its throat and suffocated the attacker. Alternatively that the deoxygenation of the lake suffocated all fishes including the fish in the act of hunting and feeding.

The lower Eocene deposits of Green River formation was thought to be a large freshwater lake or lagoon which often suffered from falls of volcanic ash smothering the lagoon and creating an anoxic environment. This reduction of oxygen suffocated the inhabitants of the lake, this circumstance preserved exceedingly well the fishes and fauna of this region, a unique occurrence in the fossil record. The lack of oxygen gave little chance for bacteria to quickly establish and decay the fishes, flora and other fauna deposited in the muds at the bottom of the lake which would eventually be transformed into soft calcite bearing shale. The calcite would be absorbed by the remains of the fish, transforming their bones into a hard mineralised deposit in the slightly softer and lighter coloured limestone shales.

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: Diplomystus Dentatus.
Age: Paleogene, Eocene, 53.500,000 to 48.500,000 years.
Origin: The Rocky Mountains, Lake Gosiute, Green River, Wyoming, USA.

Framed measurements.
Height: 50.5cm
Width: 70.0 cm
Depth: 5 cm

Weight: 11.623 kg

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100 trees helps restore CO₂ emissions for a return flight from London to San Francisco, totalling 8619.80 KM, equivalent to 0.15119 KG per KM of CO₂ per person - total flight emissions for one person is 1303.23 KG [1.3 tonnes]. With an average capacity of 575 persons per flight totalling 74,9225 KG [774 tonnes] of CO₂ based on UK government (GGR) greenhouse gas reports.



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- BE SAFE + STAY SAFE  |  Protecting you by protecting us

The health and wellbeing of our customers and employees are of the utmost importance whilst we continue to give you the high-quality experience you are used to - thank you for your ongoing support and understanding.

Stay safe - THE FOSSIL STORE team

Keep up to date and STAY SAFE >

✓ Free UK Delivery

All UK orders include FREE Recorded/Signed-for delivery excluding; the Channel Islands, Scilly Isles, Scottish Islands and some areas of the Scottish Highlands, Eire, Northern Ireland and all international regions.

UK small orders arrive 1 - 7 business days.
UK large orders arrive 7 - 14 business days.

For delivery costs, add this product to the BAG and at the bottom of the Pop-Out BAG - select your location.

✓ Worldwide Delivery

This product is available for worldwide delivery - for delivery costs, add this product to the BAG and at the bottom of the Pop-Out BAG - select your location.

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A certificate of authenticity is included for all our products, backed by THE FOSSIL STORE.

ꕤ CO2 Responsible

Planting 10 trees for every £100 received helps us to recover more than our own carbon footprint used throughout our processes from resourcing to transport, product design to fabrication and delivery to you.

100 trees helps restore CO₂ emissions for a return flight from London to San Francisco, totalling 8619.80 KM, equivalent to 0.15119 KG per KM of CO₂ per person - total flight emissions for one person is 1303.23 KG [1.3 tonnes]. With an average capacity of 575 persons per flight totalling 74,9225 KG [774 tonnes] of CO₂ based on UK government (GGR) greenhouse gas reports.



We plant trees with Ecologi

✓ Get In Touch

If you need assistance with this product, we're here to help. Just include the product 'TITLE + REF Number' when you get in touch.

• +44 [0] 151 342 1151
• i
nfo@thefossilstore.com

Contact Form >

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