Elrathia kingii - Pahvantia hastata - Dalyia racemata

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Vendor: Gold Bugs

SKU Number: SQ5143142

A perfect red Elrathia kingii trilobite from the sought after Middle Cambrian, Wheeler Shale Formation of Utah.

The trilobite is associated with Dalyia racemata red algae branches and a partial Pahvantia hastata (Anomalocaris cousin) head shield. This is an excellent plate with a vivid red trilobite and soft body fauna.

Full dimensions are listed below.

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Vendor: Gold Bugs

SKU Number: SQ5143142

A perfect red Elrathia kingii trilobite from the sought after Middle Cambrian, Wheeler Shale Formation of Utah.

The trilobite is associated with Dalyia racemata red algae branches and a partial Pahvantia hastata (Anomalocaris cousin) head shield. This is an excellent plate with a vivid red trilobite and soft body fauna.

Full dimensions are listed below.

Vendor: Gold Bugs

SKU Number: SQ5143142

A perfect red Elrathia kingii trilobite from the sought after Middle Cambrian, Wheeler Shale Formation of Utah.

The trilobite is associated with Dalyia racemata red algae branches and a partial Pahvantia hastata (Anomalocaris cousin) head shield. This is an excellent plate with a vivid red trilobite and soft body fauna.

Full dimensions are listed below.

Specimen Details
Species Name: Elrathia kingii Order / Family: Ptychopariida / Alokistocaridae Age: Middle Cambrian Locality: Millard County, Utah Formation: Wheeler Shale
Specimen Details
Species Name: Pahvantia hastata Order / Family: Radiodonta / Hurdiidae Age: Middle Cambrian Locality: Millard County, Utah Formation: Wheeler Shale
Specimen Details
Species Name: Dalyia racemata Phylum / Class: Hemichordata / Pterobranchia Age: Middle Cambrian Locality: Millard County, Utah Formation: Wheeler Shale
Matrix Dimensions
Dimensions: In Centimeters Length: 10.10 cm Width: 4.40 cm Thickness: 0.50 cm Weight: 44 grams
Specimen Dimensions
Dimensions: In Centimeters Length: 0.96 cm Width: 0.80 cm Thickness: 0.03 cm Weight: 44 grams
Specimen Dimensions
Dimensions: In Centimeters Length: 0.45 cm Width: 0.45 cm Thickness: Negligible Weight: 44 grams
Specimen Dimensions
Dimensions: In Centimeters Length: 0.65 cm Width: 0.03 cm Thickness: Negligible Weight: 44 grams
Shipping Dimensions
Dimensions: In Inches Length: 10.0 inches Width: 7. inches Height: 3. inches Weight: Under 1 lbs
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Additional Information

Elrathia kingii is one of the most common trilobites of the Middle Cambrian, wheeler Shale formation in Utah. Its more familiar form is a compressed dark gray mineralized carapace on a mid to dark gray shale. However, the 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:

Elrathia
Wheeler Shale


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