Top--A branching bryozoan colony, just to the right of the US quarter, embedded in a bioclastic bed in the late middle Ordovician Kanosh Shale of western Millard County, Utah, a number of miles east of the eastern border of White Pine County, Nevada. Also embedded in the fossil-rich matrix are abundant minute rhipidocystid echinoderm plates, in addition to at least two fragmental trilobite specimens. Photograph courtesy an individual who goes by the cyber-name Ammonoid; I edited and processed the image through photoshop.

Bottom--At center to left side of image is a bryozoan colony embedded on a hardground in the late middle Ordovician Kanosh Shale, western Millard County, Utah, a number of miles east of the eastern border of White Pine County, Nevada; rounded bead-like object at upper right is an eocrinoid holdfast, a specialized morphological feature that served to anchor the echinoderm to the substrate during life. Genus-species is Orbipora utahensis, a member of the bryozoan Order called Esthonioporata. Photograph courtesy Dr. Mark A. Wilson; I edited and processed the image through photoshop.