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Mini-Museum of Geology & Natural History

Kaskia chesterensis

WVGES Museum Receives Loan of Trilobite Specimens found in Monongalia County

Michael Dunn of Mineral, Virginia, discovered these trilobites in an abandoned limestone quarry near Greer in Monongalia County. His collection consists of several pygidia (or tails) and one complete, well preserved, enrolled specimen. Only one trilobite genera, Kaskia, is known from the upper Mississippian strata of the Appalachians (Brezinski, 1988, 1999). These specimens are assigned to the species Kaskia chesterensis. This collection represents a new locality for this species. Other fauna at this locality include brachiopods, blastoids, and crinoid stems. Shown in the photographs are a few of the trilobite pygidia and both sides of the enrolled specimen. The enrolled specimen has also been digitally unrolled to show a complete specimen. These trilobite specimens are 0.5 to 1.5 inches (12 mm to 38 mm) long. We thank Mr. Dunn for the loan of these trilobites for study and display at the WVGES Mini-Museum. We also have several other trilobite specimens on display at the museum.
Trilobites, Kaskia chesterensis
Class: Trilobita
Age: Mississippian
Locality: Greer, Monongalia County, WV
Loaned By: Michael Dunn
Museum ID: #392
Size: 12 mm to 38 mm (0.5 in to 1.5 in)
Pygidia and Head of Enrolled Specimen
Pygidia (tail) and head of enrolled specimen
Digitally Reconstructed Complete Kaskia chesterensis
Digitally Reconstructed Complete Kaskia chesterensis
Pygidia
Pygidia (tail)
Pygidia
Pygidia
Pygidia
Pygidia

REFERENCES

Brezinski, D. K. 1988. Appalachian Carboniferous trilobites. Journal of Paleontology, 62:934-945.
Brezinski, D. K. 1999. The rise and fall of late Paleozoic trilobites of the United States. Journal of Paleontology, 73:164-175
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Museum Curator: E. Ray Garton: Curator@PrehistoricPlanet.com
Page last revised July 2019.
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