Asaphiscus wheeleri - Elrathia kingii

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Vendor: Gold Bugs

SKU Number: SQ5827188

Asaphiscus wheeleri from the Middle Cambrian, Wheeler Shale Formation, Utah.

A stunning cluster of red trilobites! The centerpiece of this cluster is a large Asaphiscus trilobite that has been completely prepared free from matrix front and back, but fits upside down in its original negative. The Asaphiscus has a small Elrathia trilobite on its thorax.

There are also many red Elrathia kingii trilobites scattered about the plate. This is an incredible display piece!

Full dimensions are listed below.

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Vendor: Gold Bugs

SKU Number: SQ5827188

Asaphiscus wheeleri from the Middle Cambrian, Wheeler Shale Formation, Utah.

A stunning cluster of red trilobites! The centerpiece of this cluster is a large Asaphiscus trilobite that has been completely prepared free from matrix front and back, but fits upside down in its original negative. The Asaphiscus has a small Elrathia trilobite on its thorax.

There are also many red Elrathia kingii trilobites scattered about the plate. This is an incredible display piece!

Full dimensions are listed below.

Vendor: Gold Bugs

SKU Number: SQ5827188

Asaphiscus wheeleri from the Middle Cambrian, Wheeler Shale Formation, Utah.

A stunning cluster of red trilobites! The centerpiece of this cluster is a large Asaphiscus trilobite that has been completely prepared free from matrix front and back, but fits upside down in its original negative. The Asaphiscus has a small Elrathia trilobite on its thorax.

There are also many red Elrathia kingii trilobites scattered about the plate. This is an incredible display piece!

Full dimensions are listed below.

Specimen Details
Species Name: Asaphiscus wheeleri Order / Family: Ptychopariida / Asaphiscidae Age: Middle Cambrian Locality: Millard County, Utah Formation: Wheeler Shale
Specimen Details
Species Name: Elrathia kingii Order / Family: Ptychopariida, Alokistocaridae Age: Middle Cambrian Locality: Millard County, Utah Formation: Wheeler Shale
Matrix Dimensions
Dimensions: In Centimeters Length: 14.0 cm Width: 8.00 cm Thickness: 2.00 cm Weight: 430 grams
Specimen Dimensions
Dimensions: In Centimeters Length: 5.00 cm Width: 3.30 cm Thickness: 0.40 cm Weight: Loose fossil weight, 10 grams
Specimen Dimensions
Dimensions: In Centimeters Length: 1.50 cm Width: 1.20 cm Thickness: 0.10 cm Weight: Matrix weight, 430 grams
Shipping Dimensions
Dimensions: In Inches Length: 10.0 inches Width: 7.0 inches Height: 3. inches Weight: 1.3 lbs
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Additional Information

Asaphiscus wheeleri is a Middle Cambrian trilobite of the Middle Cambrian, wheeler Shale formation in Utah. Its more familiar form is a compressed dark gray to black mineralized carapace. The matrix of Wheeler Shale has many facies including calcareous shale, shaley limestone, mudstone and thin, flaggy limestone that create amazingly colorful contrasts of reds, yellows, browns and greens.

The rock color combinations are caused by a variety of minerals, including iron and organic carbon. The color of sedimentary rocks reflect the depositional environments, including oxygen levels, organic matter, sedimentation rate, etc. Color is also influenced by transition metals such as iron, magnesium, copper, zinc, titanium and many others. E. kingii is a medium-sized trilobite with a smooth sub-ovate carapace that is tapered towards the rear. Thorax is usually 13 segments. Pygidium has four axial rings and a long terminal piece. Posterior margin of the pygidium has a long broad medial notch.

References:

Asaphiscus
Wheeler Shale


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