Dorypyge and Altiocculus Trilobites Association

from Marjum Formation of Utah

Dorypyge swasii

Trilobites Corynexochida, Family Dorypygidae

Altiocculus drumensis

Trilobites Ptychopariida, Family Alokistocaridae

Geologic Time: Middle Cambrian

Size (25.4mm=1 inch): Dorypyge: 45 mm long by 32 mm wide Altiocculus: 40 mm by 30 mm (if articulated) on a 108 mm by 90 mm matrix

Fossil Site: Marjum Formation, Drum Mountains, Millard County, Utah

Code: UST09

Price: $995.00

Dorypyge and Altiocculus TrilobitesDescription: A spectacular example of this rarely-offered spiny trilobite, this one is stunning. Dorypyge is the patronymic genus of the Dorypygidae, a sought-after family of trilobites from the western United States. This one has been prepared with the several axial spines freestanding. What makes this even more unusual is the association with a second trilobite, a disarticulated Altiocculus drumensisexample of Altiocculus drumensis. The derivation of the species name is quite obvious These trilobites are often found with disarticulated or missing free cheeks. While you may be able to find a less expensive example, you would be hard-put to find one better prepared than this one. Many hours of exacting work went into this specimen, but you can see it was well worth it. It is quite unusual to find examples of two of the dominant orders of Cambrian trilobites in association.

Trilobite Purchase Information

click trilobite pictures to enlarge


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