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Eocene Green River Spider IF-M-PCM-16-083 Jurassic Detrital clay minerals (smectite

SKU: 19061666252

4.1
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Description

Detrital clay minerals (smectite

and the suture pattern can be seen

The second oil-shale interval is located in the upper 10 m of the Parachute Creek Member

grainstone)

Eocene Green River Spider IF-M-PCM-16-083 Jurassic Detrital clay minerals (smectiteUnidentified Spider aff. Miagrammopes Green River Formation Parachute Creek Member Middle Eocene Uintah County, Utah This is a very excellent fossil spider from the Parachute Creek beds in Utah. All eight legs are present. Leg spread is about 1 cm. Fossil spiders are very rare but this is a very fine specimen. A recent paper by Paul Selden (Arthropoda Selecta V23 2 pp 207 219) adds significant knowledge to fossil spiders from this formation. The upper

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