Quad-level occurrenceThe recorded occurrence of a species in the area represented by a specific, named U.S. Geological Survey 7.5-minute topographic quadrangle map (quad map).
QuartziteA hard, metamorphic rock that was originally sandstone.
QuaternaryThe present period, forming the latter part of the Cenozoic Era, originating about 1 million years ago and including the Recent and Pleistocene epochs.